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Update thirdparty/fmt to 11.1.0

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Eidolon 2024-12-26 12:45:08 -06:00
parent ed2c0c85cc
commit 43de82f35a
15 changed files with 7359 additions and 6834 deletions
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2
thirdparty/fmt/CMakeLists.txt vendored
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@ -1,5 +1,5 @@
# Update from https://github.com/fmtlib/fmt
# fmt 10.1.1
# fmt 11.1.0
# License: MIT with object code exception
add_library(fmt INTERFACE)

172
thirdparty/fmt/include/fmt/args.h vendored
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@ -8,34 +8,39 @@
#ifndef FMT_ARGS_H_
#define FMT_ARGS_H_
#include <functional> // std::reference_wrapper
#include <memory> // std::unique_ptr
#include <vector>
#ifndef FMT_MODULE
# include <functional> // std::reference_wrapper
# include <memory> // std::unique_ptr
# include <vector>
#endif
#include "core.h"
#include "format.h" // std_string_view
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename T> struct is_reference_wrapper : std::false_type {};
template <typename T>
struct is_reference_wrapper<std::reference_wrapper<T>> : std::true_type {};
template <typename T> const T& unwrap(const T& v) { return v; }
template <typename T> const T& unwrap(const std::reference_wrapper<T>& v) {
template <typename T> auto unwrap(const T& v) -> const T& { return v; }
template <typename T>
auto unwrap(const std::reference_wrapper<T>& v) -> const T& {
return static_cast<const T&>(v);
}
class dynamic_arg_list {
// Workaround for clang's -Wweak-vtables. Unlike for regular classes, for
// templates it doesn't complain about inability to deduce single translation
// unit for placing vtable. So storage_node_base is made a fake template.
template <typename = void> struct node {
virtual ~node() = default;
std::unique_ptr<node<>> next;
};
// node is defined outside dynamic_arg_list to workaround a C2504 bug in MSVC
// 2022 (v17.10.0).
//
// Workaround for clang's -Wweak-vtables. Unlike for regular classes, for
// templates it doesn't complain about inability to deduce single translation
// unit for placing vtable. So node is made a fake template.
template <typename = void> struct node {
virtual ~node() = default;
std::unique_ptr<node<>> next;
};
class dynamic_arg_list {
template <typename T> struct typed_node : node<> {
T value;
@ -50,7 +55,7 @@ class dynamic_arg_list {
std::unique_ptr<node<>> head_;
public:
template <typename T, typename Arg> const T& push(const Arg& arg) {
template <typename T, typename Arg> auto push(const Arg& arg) -> const T& {
auto new_node = std::unique_ptr<typed_node<T>>(new typed_node<T>(arg));
auto& value = new_node->value;
new_node->next = std::move(head_);
@ -61,28 +66,18 @@ class dynamic_arg_list {
} // namespace detail
/**
\rst
A dynamic version of `fmt::format_arg_store`.
It's equipped with a storage to potentially temporary objects which lifetimes
could be shorter than the format arguments object.
It can be implicitly converted into `~fmt::basic_format_args` for passing
into type-erased formatting functions such as `~fmt::vformat`.
\endrst
* A dynamic list of formatting arguments with storage.
*
* It can be implicitly converted into `fmt::basic_format_args` for passing
* into type-erased formatting functions such as `fmt::vformat`.
*/
template <typename Context>
class dynamic_format_arg_store
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
// Workaround a GCC template argument substitution bug.
: public basic_format_args<Context>
#endif
{
template <typename Context> class dynamic_format_arg_store {
private:
using char_type = typename Context::char_type;
template <typename T> struct need_copy {
static constexpr detail::type mapped_type =
detail::mapped_type_constant<T, Context>::value;
detail::mapped_type_constant<T, char_type>::value;
enum {
value = !(detail::is_reference_wrapper<T>::value ||
@ -95,7 +90,7 @@ class dynamic_format_arg_store
};
template <typename T>
using stored_type = conditional_t<
using stored_t = conditional_t<
std::is_convertible<T, std::basic_string<char_type>>::value &&
!detail::is_reference_wrapper<T>::value,
std::basic_string<char_type>, T>;
@ -110,80 +105,72 @@ class dynamic_format_arg_store
friend class basic_format_args<Context>;
unsigned long long get_types() const {
return detail::is_unpacked_bit | data_.size() |
(named_info_.empty()
? 0ULL
: static_cast<unsigned long long>(detail::has_named_args_bit));
}
const basic_format_arg<Context>* data() const {
auto data() const -> const basic_format_arg<Context>* {
return named_info_.empty() ? data_.data() : data_.data() + 1;
}
template <typename T> void emplace_arg(const T& arg) {
data_.emplace_back(detail::make_arg<Context>(arg));
data_.emplace_back(arg);
}
template <typename T>
void emplace_arg(const detail::named_arg<char_type, T>& arg) {
if (named_info_.empty()) {
constexpr const detail::named_arg_info<char_type>* zero_ptr{nullptr};
data_.insert(data_.begin(), {zero_ptr, 0});
}
data_.emplace_back(detail::make_arg<Context>(detail::unwrap(arg.value)));
if (named_info_.empty())
data_.insert(data_.begin(), basic_format_arg<Context>(nullptr, 0));
data_.emplace_back(detail::unwrap(arg.value));
auto pop_one = [](std::vector<basic_format_arg<Context>>* data) {
data->pop_back();
};
std::unique_ptr<std::vector<basic_format_arg<Context>>, decltype(pop_one)>
guard{&data_, pop_one};
named_info_.push_back({arg.name, static_cast<int>(data_.size() - 2u)});
data_[0].value_.named_args = {named_info_.data(), named_info_.size()};
data_[0] = {named_info_.data(), named_info_.size()};
guard.release();
}
public:
constexpr dynamic_format_arg_store() = default;
operator basic_format_args<Context>() const {
return basic_format_args<Context>(data(), static_cast<int>(data_.size()),
!named_info_.empty());
}
/**
\rst
Adds an argument into the dynamic store for later passing to a formatting
function.
Note that custom types and string types (but not string views) are copied
into the store dynamically allocating memory if necessary.
**Example**::
fmt::dynamic_format_arg_store<fmt::format_context> store;
store.push_back(42);
store.push_back("abc");
store.push_back(1.5f);
std::string result = fmt::vformat("{} and {} and {}", store);
\endrst
*/
* Adds an argument into the dynamic store for later passing to a formatting
* function.
*
* Note that custom types and string types (but not string views) are copied
* into the store dynamically allocating memory if necessary.
*
* **Example**:
*
* fmt::dynamic_format_arg_store<fmt::format_context> store;
* store.push_back(42);
* store.push_back("abc");
* store.push_back(1.5f);
* std::string result = fmt::vformat("{} and {} and {}", store);
*/
template <typename T> void push_back(const T& arg) {
if (detail::const_check(need_copy<T>::value))
emplace_arg(dynamic_args_.push<stored_type<T>>(arg));
emplace_arg(dynamic_args_.push<stored_t<T>>(arg));
else
emplace_arg(detail::unwrap(arg));
}
/**
\rst
Adds a reference to the argument into the dynamic store for later passing to
a formatting function.
**Example**::
fmt::dynamic_format_arg_store<fmt::format_context> store;
char band[] = "Rolling Stones";
store.push_back(std::cref(band));
band[9] = 'c'; // Changing str affects the output.
std::string result = fmt::vformat("{}", store);
// result == "Rolling Scones"
\endrst
*/
* Adds a reference to the argument into the dynamic store for later passing
* to a formatting function.
*
* **Example**:
*
* fmt::dynamic_format_arg_store<fmt::format_context> store;
* char band[] = "Rolling Stones";
* store.push_back(std::cref(band));
* band[9] = 'c'; // Changing str affects the output.
* std::string result = fmt::vformat("{}", store);
* // result == "Rolling Scones"
*/
template <typename T> void push_back(std::reference_wrapper<T> arg) {
static_assert(
need_copy<T>::value,
@ -192,41 +179,40 @@ class dynamic_format_arg_store
}
/**
Adds named argument into the dynamic store for later passing to a formatting
function. ``std::reference_wrapper`` is supported to avoid copying of the
argument. The name is always copied into the store.
*/
* Adds named argument into the dynamic store for later passing to a
* formatting function. `std::reference_wrapper` is supported to avoid
* copying of the argument. The name is always copied into the store.
*/
template <typename T>
void push_back(const detail::named_arg<char_type, T>& arg) {
const char_type* arg_name =
dynamic_args_.push<std::basic_string<char_type>>(arg.name).c_str();
if (detail::const_check(need_copy<T>::value)) {
emplace_arg(
fmt::arg(arg_name, dynamic_args_.push<stored_type<T>>(arg.value)));
fmt::arg(arg_name, dynamic_args_.push<stored_t<T>>(arg.value)));
} else {
emplace_arg(fmt::arg(arg_name, arg.value));
}
}
/** Erase all elements from the store */
/// Erase all elements from the store.
void clear() {
data_.clear();
named_info_.clear();
dynamic_args_ = detail::dynamic_arg_list();
dynamic_args_ = {};
}
/**
\rst
Reserves space to store at least *new_cap* arguments including
*new_cap_named* named arguments.
\endrst
*/
/// Reserves space to store at least `new_cap` arguments including
/// `new_cap_named` named arguments.
void reserve(size_t new_cap, size_t new_cap_named) {
FMT_ASSERT(new_cap >= new_cap_named,
"Set of arguments includes set of named arguments");
"set of arguments includes set of named arguments");
data_.reserve(new_cap);
named_info_.reserve(new_cap_named);
}
/// Returns the number of elements in the store.
size_t size() const noexcept { return data_.size(); }
};
FMT_END_NAMESPACE

2938
thirdparty/fmt/include/fmt/base.h vendored Normal file
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1408
thirdparty/fmt/include/fmt/chrono.h vendored
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264
thirdparty/fmt/include/fmt/color.h vendored
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@ -227,19 +227,19 @@ struct color_type {
};
} // namespace detail
/** A text style consisting of foreground and background colors and emphasis. */
/// A text style consisting of foreground and background colors and emphasis.
class text_style {
public:
FMT_CONSTEXPR text_style(emphasis em = emphasis()) noexcept
: set_foreground_color(), set_background_color(), ems(em) {}
FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) {
FMT_CONSTEXPR auto operator|=(const text_style& rhs) -> text_style& {
if (!set_foreground_color) {
set_foreground_color = rhs.set_foreground_color;
foreground_color = rhs.foreground_color;
} else if (rhs.set_foreground_color) {
if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
FMT_THROW(format_error("can't OR a terminal color"));
report_error("can't OR a terminal color");
foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
}
@ -248,7 +248,7 @@ class text_style {
background_color = rhs.background_color;
} else if (rhs.set_background_color) {
if (!background_color.is_rgb || !rhs.background_color.is_rgb)
FMT_THROW(format_error("can't OR a terminal color"));
report_error("can't OR a terminal color");
background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
}
@ -257,29 +257,29 @@ class text_style {
return *this;
}
friend FMT_CONSTEXPR text_style operator|(text_style lhs,
const text_style& rhs) {
friend FMT_CONSTEXPR auto operator|(text_style lhs, const text_style& rhs)
-> text_style {
return lhs |= rhs;
}
FMT_CONSTEXPR bool has_foreground() const noexcept {
FMT_CONSTEXPR auto has_foreground() const noexcept -> bool {
return set_foreground_color;
}
FMT_CONSTEXPR bool has_background() const noexcept {
FMT_CONSTEXPR auto has_background() const noexcept -> bool {
return set_background_color;
}
FMT_CONSTEXPR bool has_emphasis() const noexcept {
FMT_CONSTEXPR auto has_emphasis() const noexcept -> bool {
return static_cast<uint8_t>(ems) != 0;
}
FMT_CONSTEXPR detail::color_type get_foreground() const noexcept {
FMT_CONSTEXPR auto get_foreground() const noexcept -> detail::color_type {
FMT_ASSERT(has_foreground(), "no foreground specified for this style");
return foreground_color;
}
FMT_CONSTEXPR detail::color_type get_background() const noexcept {
FMT_CONSTEXPR auto get_background() const noexcept -> detail::color_type {
FMT_ASSERT(has_background(), "no background specified for this style");
return background_color;
}
FMT_CONSTEXPR emphasis get_emphasis() const noexcept {
FMT_CONSTEXPR auto get_emphasis() const noexcept -> emphasis {
FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
return ems;
}
@ -297,9 +297,11 @@ class text_style {
}
}
friend FMT_CONSTEXPR text_style fg(detail::color_type foreground) noexcept;
friend FMT_CONSTEXPR auto fg(detail::color_type foreground) noexcept
-> text_style;
friend FMT_CONSTEXPR text_style bg(detail::color_type background) noexcept;
friend FMT_CONSTEXPR auto bg(detail::color_type background) noexcept
-> text_style;
detail::color_type foreground_color;
detail::color_type background_color;
@ -308,24 +310,27 @@ class text_style {
emphasis ems;
};
/** Creates a text style from the foreground (text) color. */
FMT_CONSTEXPR inline text_style fg(detail::color_type foreground) noexcept {
/// Creates a text style from the foreground (text) color.
FMT_CONSTEXPR inline auto fg(detail::color_type foreground) noexcept
-> text_style {
return text_style(true, foreground);
}
/** Creates a text style from the background color. */
FMT_CONSTEXPR inline text_style bg(detail::color_type background) noexcept {
/// Creates a text style from the background color.
FMT_CONSTEXPR inline auto bg(detail::color_type background) noexcept
-> text_style {
return text_style(false, background);
}
FMT_CONSTEXPR inline text_style operator|(emphasis lhs, emphasis rhs) noexcept {
FMT_CONSTEXPR inline auto operator|(emphasis lhs, emphasis rhs) noexcept
-> text_style {
return text_style(lhs) | rhs;
}
namespace detail {
template <typename Char> struct ansi_color_escape {
FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
FMT_CONSTEXPR ansi_color_escape(color_type text_color,
const char* esc) noexcept {
// If we have a terminal color, we need to output another escape code
// sequence.
@ -384,9 +389,9 @@ template <typename Char> struct ansi_color_escape {
}
FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; }
FMT_CONSTEXPR const Char* begin() const noexcept { return buffer; }
FMT_CONSTEXPR_CHAR_TRAITS const Char* end() const noexcept {
return buffer + std::char_traits<Char>::length(buffer);
FMT_CONSTEXPR auto begin() const noexcept -> const Char* { return buffer; }
FMT_CONSTEXPR20 auto end() const noexcept -> const Char* {
return buffer + basic_string_view<Char>(buffer).size();
}
private:
@ -400,25 +405,27 @@ template <typename Char> struct ansi_color_escape {
out[2] = static_cast<Char>('0' + c % 10);
out[3] = static_cast<Char>(delimiter);
}
static FMT_CONSTEXPR bool has_emphasis(emphasis em, emphasis mask) noexcept {
static FMT_CONSTEXPR auto has_emphasis(emphasis em, emphasis mask) noexcept
-> bool {
return static_cast<uint8_t>(em) & static_cast<uint8_t>(mask);
}
};
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
detail::color_type foreground) noexcept {
FMT_CONSTEXPR auto make_foreground_color(color_type foreground) noexcept
-> ansi_color_escape<Char> {
return ansi_color_escape<Char>(foreground, "\x1b[38;2;");
}
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
detail::color_type background) noexcept {
FMT_CONSTEXPR auto make_background_color(color_type background) noexcept
-> ansi_color_escape<Char> {
return ansi_color_escape<Char>(background, "\x1b[48;2;");
}
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) noexcept {
FMT_CONSTEXPR auto make_emphasis(emphasis em) noexcept
-> ansi_color_escape<Char> {
return ansi_color_escape<Char>(em);
}
@ -427,149 +434,123 @@ template <typename Char> inline void reset_color(buffer<Char>& buffer) {
buffer.append(reset_color.begin(), reset_color.end());
}
template <typename T> struct styled_arg {
template <typename T> struct styled_arg : view {
const T& value;
text_style style;
styled_arg(const T& v, text_style s) : value(v), style(s) {}
};
template <typename Char>
void vformat_to(buffer<Char>& buf, const text_style& ts,
basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_string_view<Char> fmt,
basic_format_args<buffered_context<Char>> args) {
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
auto emphasis = make_emphasis<Char>(ts.get_emphasis());
buf.append(emphasis.begin(), emphasis.end());
}
if (ts.has_foreground()) {
has_style = true;
auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
auto foreground = make_foreground_color<Char>(ts.get_foreground());
buf.append(foreground.begin(), foreground.end());
}
if (ts.has_background()) {
has_style = true;
auto background = detail::make_background_color<Char>(ts.get_background());
auto background = make_background_color<Char>(ts.get_background());
buf.append(background.begin(), background.end());
}
detail::vformat_to(buf, format_str, args, {});
if (has_style) detail::reset_color<Char>(buf);
vformat_to(buf, fmt, args);
if (has_style) reset_color<Char>(buf);
}
} // namespace detail
inline void vprint(std::FILE* f, const text_style& ts, string_view fmt,
inline void vprint(FILE* f, const text_style& ts, string_view fmt,
format_args args) {
// Legacy wide streams are not supported.
auto buf = memory_buffer();
detail::vformat_to(buf, ts, fmt, args);
if (detail::is_utf8()) {
detail::print(f, string_view(buf.begin(), buf.size()));
return;
}
buf.push_back('\0');
int result = std::fputs(buf.data(), f);
if (result < 0)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
print(f, FMT_STRING("{}"), string_view(buf.begin(), buf.size()));
}
/**
\rst
Formats a string and prints it to the specified file stream using ANSI
escape sequences to specify text formatting.
**Example**::
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
* Formats a string and prints it to the specified file stream using ANSI
* escape sequences to specify text formatting.
*
* **Example**:
*
* fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
* "Elapsed time: {0:.2f} seconds", 1.23);
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
vprint(f, ts, format_str,
fmt::make_format_args<buffer_context<char_t<S>>>(args...));
template <typename... T>
void print(FILE* f, const text_style& ts, format_string<T...> fmt,
T&&... args) {
vprint(f, ts, fmt.str, vargs<T...>{{args...}});
}
/**
\rst
Formats a string and prints it to stdout using ANSI escape sequences to
specify text formatting.
**Example**::
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
\endrst
* Formats a string and prints it to stdout using ANSI escape sequences to
* specify text formatting.
*
* **Example**:
*
* fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
* "Elapsed time: {0:.2f} seconds", 1.23);
*/
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(const text_style& ts, const S& format_str, const Args&... args) {
return print(stdout, ts, format_str, args...);
template <typename... T>
void print(const text_style& ts, format_string<T...> fmt, T&&... args) {
return print(stdout, ts, fmt, std::forward<T>(args)...);
}
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const text_style& ts, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
detail::vformat_to(buf, ts, detail::to_string_view(format_str), args);
inline auto vformat(const text_style& ts, string_view fmt, format_args args)
-> std::string {
auto buf = memory_buffer();
detail::vformat_to(buf, ts, fmt, args);
return fmt::to_string(buf);
}
/**
\rst
Formats arguments and returns the result as a string using ANSI
escape sequences to specify text formatting.
**Example**::
#include <fmt/color.h>
std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
"The answer is {}", 42);
\endrst
*/
template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
const Args&... args) {
return fmt::vformat(ts, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
* Formats arguments and returns the result as a string using ANSI escape
* sequences to specify text formatting.
*
* **Example**:
*
* ```
* #include <fmt/color.h>
* std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
* "The answer is {}", 42);
* ```
*/
template <typename... T>
inline auto format(const text_style& ts, format_string<T...> fmt, T&&... args)
-> std::string {
return fmt::vformat(ts, fmt.str, vargs<T...>{{args...}});
}
/**
Formats a string with the given text_style and writes the output to ``out``.
*/
template <typename OutputIt, typename Char,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
OutputIt vformat_to(
OutputIt out, const text_style& ts, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
auto&& buf = detail::get_buffer<Char>(out);
detail::vformat_to(buf, ts, format_str, args);
/// Formats a string with the given text_style and writes the output to `out`.
template <typename OutputIt,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
auto vformat_to(OutputIt out, const text_style& ts, string_view fmt,
format_args args) -> OutputIt {
auto&& buf = detail::get_buffer<char>(out);
detail::vformat_to(buf, ts, fmt, args);
return detail::get_iterator(buf, out);
}
/**
\rst
Formats arguments with the given text_style, writes the result to the output
iterator ``out`` and returns the iterator past the end of the output range.
**Example**::
std::vector<char> out;
fmt::format_to(std::back_inserter(out),
fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
\endrst
*/
template <typename OutputIt, typename S, typename... Args,
bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value&&
detail::is_string<S>::value>
inline auto format_to(OutputIt out, const text_style& ts, const S& format_str,
Args&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
return vformat_to(out, ts, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<char_t<S>>>(args...));
* Formats arguments with the given text style, writes the result to the output
* iterator `out` and returns the iterator past the end of the output range.
*
* **Example**:
*
* std::vector<char> out;
* fmt::format_to(std::back_inserter(out),
* fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
*/
template <typename OutputIt, typename... T,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
inline auto format_to(OutputIt out, const text_style& ts,
format_string<T...> fmt, T&&... args) -> OutputIt {
return vformat_to(out, ts, fmt.str, vargs<T...>{{args...}});
}
template <typename T, typename Char>
@ -578,47 +559,44 @@ struct formatter<detail::styled_arg<T>, Char> : formatter<T, Char> {
auto format(const detail::styled_arg<T>& arg, FormatContext& ctx) const
-> decltype(ctx.out()) {
const auto& ts = arg.style;
const auto& value = arg.value;
auto out = ctx.out();
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
out = std::copy(emphasis.begin(), emphasis.end(), out);
out = detail::copy<Char>(emphasis.begin(), emphasis.end(), out);
}
if (ts.has_foreground()) {
has_style = true;
auto foreground =
detail::make_foreground_color<Char>(ts.get_foreground());
out = std::copy(foreground.begin(), foreground.end(), out);
out = detail::copy<Char>(foreground.begin(), foreground.end(), out);
}
if (ts.has_background()) {
has_style = true;
auto background =
detail::make_background_color<Char>(ts.get_background());
out = std::copy(background.begin(), background.end(), out);
out = detail::copy<Char>(background.begin(), background.end(), out);
}
out = formatter<T, Char>::format(value, ctx);
out = formatter<T, Char>::format(arg.value, ctx);
if (has_style) {
auto reset_color = string_view("\x1b[0m");
out = std::copy(reset_color.begin(), reset_color.end(), out);
out = detail::copy<Char>(reset_color.begin(), reset_color.end(), out);
}
return out;
}
};
/**
\rst
Returns an argument that will be formatted using ANSI escape sequences,
to be used in a formatting function.
**Example**::
fmt::print("Elapsed time: {0:.2f} seconds",
fmt::styled(1.23, fmt::fg(fmt::color::green) |
fmt::bg(fmt::color::blue)));
\endrst
* Returns an argument that will be formatted using ANSI escape sequences,
* to be used in a formatting function.
*
* **Example**:
*
* fmt::print("Elapsed time: {0:.2f} seconds",
* fmt::styled(1.23, fmt::fg(fmt::color::green) |
* fmt::bg(fmt::color::blue)));
*/
template <typename T>
FMT_CONSTEXPR auto styled(const T& value, text_style ts)

169
thirdparty/fmt/include/fmt/compile.h vendored
View file

@ -8,56 +8,51 @@
#ifndef FMT_COMPILE_H_
#define FMT_COMPILE_H_
#ifndef FMT_MODULE
# include <iterator> // std::back_inserter
#endif
#include "format.h"
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Char, typename InputIt>
FMT_CONSTEXPR inline counting_iterator copy_str(InputIt begin, InputIt end,
counting_iterator it) {
return it + (end - begin);
}
// A compile-time string which is compiled into fast formatting code.
class compiled_string {};
FMT_EXPORT class compiled_string {};
namespace detail {
template <typename S>
struct is_compiled_string : std::is_base_of<compiled_string, S> {};
/**
\rst
Converts a string literal *s* into a format string that will be parsed at
compile time and converted into efficient formatting code. Requires C++17
``constexpr if`` compiler support.
**Example**::
// Converts 42 into std::string using the most efficient method and no
// runtime format string processing.
std::string s = fmt::format(FMT_COMPILE("{}"), 42);
\endrst
* Converts a string literal `s` into a format string that will be parsed at
* compile time and converted into efficient formatting code. Requires C++17
* `constexpr if` compiler support.
*
* **Example**:
*
* // Converts 42 into std::string using the most efficient method and no
* // runtime format string processing.
* std::string s = fmt::format(FMT_COMPILE("{}"), 42);
*/
#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
# define FMT_COMPILE(s) \
FMT_STRING_IMPL(s, fmt::detail::compiled_string, explicit)
# define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::compiled_string)
#else
# define FMT_COMPILE(s) FMT_STRING(s)
#endif
#if FMT_USE_NONTYPE_TEMPLATE_ARGS
template <typename Char, size_t N,
fmt::detail_exported::fixed_string<Char, N> Str>
template <typename Char, size_t N, fmt::detail::fixed_string<Char, N> Str>
struct udl_compiled_string : compiled_string {
using char_type = Char;
explicit constexpr operator basic_string_view<char_type>() const {
constexpr explicit operator basic_string_view<char_type>() const {
return {Str.data, N - 1};
}
};
#endif
template <typename T, typename... Tail>
const T& first(const T& value, const Tail&...) {
auto first(const T& value, const Tail&...) -> const T& {
return value;
}
@ -75,6 +70,29 @@ constexpr const auto& get([[maybe_unused]] const T& first,
return detail::get<N - 1>(rest...);
}
# if FMT_USE_NONTYPE_TEMPLATE_ARGS
template <int N, typename T, typename... Args, typename Char>
constexpr auto get_arg_index_by_name(basic_string_view<Char> name) -> int {
if constexpr (is_static_named_arg<T>()) {
if (name == T::name) return N;
}
if constexpr (sizeof...(Args) > 0)
return get_arg_index_by_name<N + 1, Args...>(name);
(void)name; // Workaround an MSVC bug about "unused" parameter.
return -1;
}
# endif
template <typename... Args, typename Char>
FMT_CONSTEXPR auto get_arg_index_by_name(basic_string_view<Char> name) -> int {
# if FMT_USE_NONTYPE_TEMPLATE_ARGS
if constexpr (sizeof...(Args) > 0)
return get_arg_index_by_name<0, Args...>(name);
# endif
(void)name;
return -1;
}
template <typename Char, typename... Args>
constexpr int get_arg_index_by_name(basic_string_view<Char> name,
type_list<Args...>) {
@ -144,11 +162,12 @@ template <typename Char, typename T, int N> struct field {
template <typename OutputIt, typename... Args>
constexpr OutputIt format(OutputIt out, const Args&... args) const {
const T& arg = get_arg_checked<T, N>(args...);
if constexpr (std::is_convertible_v<T, basic_string_view<Char>>) {
if constexpr (std::is_convertible<T, basic_string_view<Char>>::value) {
auto s = basic_string_view<Char>(arg);
return copy_str<Char>(s.begin(), s.end(), out);
return copy<Char>(s.begin(), s.end(), out);
} else {
return write<Char>(out, arg);
}
return write<Char>(out, arg);
}
};
@ -236,13 +255,12 @@ constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
}
template <typename Args, size_t POS, int ID, typename S>
constexpr auto compile_format_string(S format_str);
constexpr auto compile_format_string(S fmt);
template <typename Args, size_t POS, int ID, typename T, typename S>
constexpr auto parse_tail(T head, S format_str) {
if constexpr (POS !=
basic_string_view<typename S::char_type>(format_str).size()) {
constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
constexpr auto parse_tail(T head, S fmt) {
if constexpr (POS != basic_string_view<typename S::char_type>(fmt).size()) {
constexpr auto tail = compile_format_string<Args, POS, ID>(fmt);
if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
unknown_format>())
return tail;
@ -274,6 +292,7 @@ constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
}
template <typename Char> struct arg_id_handler {
arg_id_kind kind;
arg_ref<Char> arg_id;
constexpr int on_auto() {
@ -281,25 +300,28 @@ template <typename Char> struct arg_id_handler {
return 0;
}
constexpr int on_index(int id) {
kind = arg_id_kind::index;
arg_id = arg_ref<Char>(id);
return 0;
}
constexpr int on_name(basic_string_view<Char> id) {
kind = arg_id_kind::name;
arg_id = arg_ref<Char>(id);
return 0;
}
};
template <typename Char> struct parse_arg_id_result {
arg_id_kind kind;
arg_ref<Char> arg_id;
const Char* arg_id_end;
};
template <int ID, typename Char>
constexpr auto parse_arg_id(const Char* begin, const Char* end) {
auto handler = arg_id_handler<Char>{arg_ref<Char>{}};
auto handler = arg_id_handler<Char>{arg_id_kind::none, arg_ref<Char>{}};
auto arg_id_end = parse_arg_id(begin, end, handler);
return parse_arg_id_result<Char>{handler.arg_id, arg_id_end};
return parse_arg_id_result<Char>{handler.kind, handler.arg_id, arg_id_end};
}
template <typename T, typename Enable = void> struct field_type {
@ -313,14 +335,13 @@ struct field_type<T, enable_if_t<detail::is_named_arg<T>::value>> {
template <typename T, typename Args, size_t END_POS, int ARG_INDEX, int NEXT_ID,
typename S>
constexpr auto parse_replacement_field_then_tail(S format_str) {
constexpr auto parse_replacement_field_then_tail(S fmt) {
using char_type = typename S::char_type;
constexpr auto str = basic_string_view<char_type>(format_str);
constexpr auto str = basic_string_view<char_type>(fmt);
constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type();
if constexpr (c == '}') {
return parse_tail<Args, END_POS + 1, NEXT_ID>(
field<char_type, typename field_type<T>::type, ARG_INDEX>(),
format_str);
field<char_type, typename field_type<T>::type, ARG_INDEX>(), fmt);
} else if constexpr (c != ':') {
FMT_THROW(format_error("expected ':'"));
} else {
@ -333,7 +354,7 @@ constexpr auto parse_replacement_field_then_tail(S format_str) {
return parse_tail<Args, result.end + 1, result.next_arg_id>(
spec_field<char_type, typename field_type<T>::type, ARG_INDEX>{
result.fmt},
format_str);
fmt);
}
}
}
@ -341,22 +362,21 @@ constexpr auto parse_replacement_field_then_tail(S format_str) {
// Compiles a non-empty format string and returns the compiled representation
// or unknown_format() on unrecognized input.
template <typename Args, size_t POS, int ID, typename S>
constexpr auto compile_format_string(S format_str) {
constexpr auto compile_format_string(S fmt) {
using char_type = typename S::char_type;
constexpr auto str = basic_string_view<char_type>(format_str);
constexpr auto str = basic_string_view<char_type>(fmt);
if constexpr (str[POS] == '{') {
if constexpr (POS + 1 == str.size())
FMT_THROW(format_error("unmatched '{' in format string"));
if constexpr (str[POS + 1] == '{') {
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), fmt);
} else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') {
static_assert(ID != manual_indexing_id,
"cannot switch from manual to automatic argument indexing");
constexpr auto next_id =
ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
return parse_replacement_field_then_tail<get_type<ID, Args>, Args,
POS + 1, ID, next_id>(
format_str);
POS + 1, ID, next_id>(fmt);
} else {
constexpr auto arg_id_result =
parse_arg_id<ID>(str.data() + POS + 1, str.data() + str.size());
@ -364,28 +384,27 @@ constexpr auto compile_format_string(S format_str) {
constexpr char_type c =
arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type();
static_assert(c == '}' || c == ':', "missing '}' in format string");
if constexpr (arg_id_result.arg_id.kind == arg_id_kind::index) {
if constexpr (arg_id_result.kind == arg_id_kind::index) {
static_assert(
ID == manual_indexing_id || ID == 0,
"cannot switch from automatic to manual argument indexing");
constexpr auto arg_index = arg_id_result.arg_id.val.index;
constexpr auto arg_index = arg_id_result.arg_id.index;
return parse_replacement_field_then_tail<get_type<arg_index, Args>,
Args, arg_id_end_pos,
arg_index, manual_indexing_id>(
format_str);
} else if constexpr (arg_id_result.arg_id.kind == arg_id_kind::name) {
fmt);
} else if constexpr (arg_id_result.kind == arg_id_kind::name) {
constexpr auto arg_index =
get_arg_index_by_name(arg_id_result.arg_id.val.name, Args{});
get_arg_index_by_name(arg_id_result.arg_id.name, Args{});
if constexpr (arg_index >= 0) {
constexpr auto next_id =
ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
return parse_replacement_field_then_tail<
decltype(get_type<arg_index, Args>::value), Args, arg_id_end_pos,
arg_index, next_id>(format_str);
arg_index, next_id>(fmt);
} else if constexpr (c == '}') {
return parse_tail<Args, arg_id_end_pos + 1, ID>(
runtime_named_field<char_type>{arg_id_result.arg_id.val.name},
format_str);
runtime_named_field<char_type>{arg_id_result.arg_id.name}, fmt);
} else if constexpr (c == ':') {
return unknown_format(); // no type info for specs parsing
}
@ -394,29 +413,26 @@ constexpr auto compile_format_string(S format_str) {
} else if constexpr (str[POS] == '}') {
if constexpr (POS + 1 == str.size())
FMT_THROW(format_error("unmatched '}' in format string"));
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), fmt);
} else {
constexpr auto end = parse_text(str, POS + 1);
if constexpr (end - POS > 1) {
return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
format_str);
return parse_tail<Args, end, ID>(make_text(str, POS, end - POS), fmt);
} else {
return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
format_str);
return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]}, fmt);
}
}
}
template <typename... Args, typename S,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
constexpr auto compile(S format_str) {
constexpr auto str = basic_string_view<typename S::char_type>(format_str);
constexpr auto compile(S fmt) {
constexpr auto str = basic_string_view<typename S::char_type>(fmt);
if constexpr (str.size() == 0) {
return detail::make_text(str, 0, 0);
} else {
constexpr auto result =
detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
format_str);
detail::compile_format_string<detail::type_list<Args...>, 0, 0>(fmt);
return result;
}
}
@ -488,39 +504,40 @@ FMT_CONSTEXPR OutputIt format_to(OutputIt out, const S&, Args&&... args) {
template <typename OutputIt, typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
const S& format_str, Args&&... args) {
auto format_to_n(OutputIt out, size_t n, const S& fmt, Args&&... args)
-> format_to_n_result<OutputIt> {
using traits = detail::fixed_buffer_traits;
auto buf = detail::iterator_buffer<OutputIt, char, traits>(out, n);
format_to(std::back_inserter(buf), format_str, std::forward<Args>(args)...);
fmt::format_to(std::back_inserter(buf), fmt, std::forward<Args>(args)...);
return {buf.out(), buf.count()};
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
FMT_CONSTEXPR20 size_t formatted_size(const S& format_str,
const Args&... args) {
return fmt::format_to(detail::counting_iterator(), format_str, args...)
.count();
FMT_CONSTEXPR20 auto formatted_size(const S& fmt, const Args&... args)
-> size_t {
auto buf = detail::counting_buffer<>();
fmt::format_to(appender(buf), fmt, args...);
return buf.count();
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
void print(std::FILE* f, const S& format_str, const Args&... args) {
memory_buffer buffer;
fmt::format_to(std::back_inserter(buffer), format_str, args...);
detail::print(f, {buffer.data(), buffer.size()});
void print(std::FILE* f, const S& fmt, const Args&... args) {
auto buf = memory_buffer();
fmt::format_to(appender(buf), fmt, args...);
detail::print(f, {buf.data(), buf.size()});
}
template <typename S, typename... Args,
FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
void print(const S& format_str, const Args&... args) {
print(stdout, format_str, args...);
void print(const S& fmt, const Args&... args) {
print(stdout, fmt, args...);
}
#if FMT_USE_NONTYPE_TEMPLATE_ARGS
inline namespace literals {
template <detail_exported::fixed_string Str> constexpr auto operator""_cf() {
template <detail::fixed_string Str> constexpr auto operator""_cf() {
using char_t = remove_cvref_t<decltype(Str.data[0])>;
return detail::udl_compiled_string<char_t, sizeof(Str.data) / sizeof(char_t),
Str>();

2925
thirdparty/fmt/include/fmt/core.h vendored
View file

File diff suppressed because it is too large Load diff

533
thirdparty/fmt/include/fmt/format-inl.h vendored
View file

@ -8,36 +8,36 @@
#ifndef FMT_FORMAT_INL_H_
#define FMT_FORMAT_INL_H_
#include <algorithm>
#include <cerrno> // errno
#include <climits>
#include <cmath>
#include <exception>
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
# include <locale>
#ifndef FMT_MODULE
# include <algorithm>
# include <cerrno> // errno
# include <climits>
# include <cmath>
# include <exception>
#endif
#ifdef _WIN32
#if defined(_WIN32) && !defined(FMT_USE_WRITE_CONSOLE)
# include <io.h> // _isatty
#endif
#include "format.h"
#if FMT_USE_LOCALE
# include <locale>
#endif
#ifndef FMT_FUNC
# define FMT_FUNC
#endif
FMT_BEGIN_NAMESPACE
namespace detail {
FMT_FUNC void assert_fail(const char* file, int line, const char* message) {
// Use unchecked std::fprintf to avoid triggering another assertion when
// writing to stderr fails
std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message);
// Chosen instead of std::abort to satisfy Clang in CUDA mode during device
// code pass.
std::terminate();
}
FMT_FUNC void throw_format_error(const char* message) {
FMT_THROW(format_error(message));
// writing to stderr fails.
fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message);
abort();
}
FMT_FUNC void format_error_code(detail::buffer<char>& out, int error_code,
@ -56,112 +56,127 @@ FMT_FUNC void format_error_code(detail::buffer<char>& out, int error_code,
++error_code_size;
}
error_code_size += detail::to_unsigned(detail::count_digits(abs_value));
auto it = buffer_appender<char>(out);
auto it = appender(out);
if (message.size() <= inline_buffer_size - error_code_size)
format_to(it, FMT_STRING("{}{}"), message, SEP);
format_to(it, FMT_STRING("{}{}"), ERROR_STR, error_code);
fmt::format_to(it, FMT_STRING("{}{}"), message, SEP);
fmt::format_to(it, FMT_STRING("{}{}"), ERROR_STR, error_code);
FMT_ASSERT(out.size() <= inline_buffer_size, "");
}
FMT_FUNC void report_error(format_func func, int error_code,
const char* message) noexcept {
FMT_FUNC void do_report_error(format_func func, int error_code,
const char* message) noexcept {
memory_buffer full_message;
func(full_message, error_code, message);
// Don't use fwrite_fully because the latter may throw.
// Don't use fwrite_all because the latter may throw.
if (std::fwrite(full_message.data(), full_message.size(), 1, stderr) > 0)
std::fputc('\n', stderr);
}
// A wrapper around fwrite that throws on error.
inline void fwrite_fully(const void* ptr, size_t size, size_t count,
FILE* stream) {
size_t written = std::fwrite(ptr, size, count, stream);
inline void fwrite_all(const void* ptr, size_t count, FILE* stream) {
size_t written = std::fwrite(ptr, 1, count, stream);
if (written < count)
FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
}
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template <typename Locale>
locale_ref::locale_ref(const Locale& loc) : locale_(&loc) {
static_assert(std::is_same<Locale, std::locale>::value, "");
}
#if FMT_USE_LOCALE
using std::locale;
using std::numpunct;
using std::use_facet;
template <typename Locale> Locale locale_ref::get() const {
static_assert(std::is_same<Locale, std::locale>::value, "");
return locale_ ? *static_cast<const std::locale*>(locale_) : std::locale();
template <typename Locale, enable_if_t<(sizeof(Locale::collate) != 0), int>>
locale_ref::locale_ref(const Locale& loc) : locale_(&loc) {
static_assert(std::is_same<Locale, locale>::value, "");
}
#else
struct locale {};
template <typename Char> struct numpunct {
auto grouping() const -> std::string { return "\03"; }
auto thousands_sep() const -> Char { return ','; }
auto decimal_point() const -> Char { return '.'; }
};
template <typename Facet> Facet use_facet(locale) { return {}; }
#endif // FMT_USE_LOCALE
template <typename Locale> auto locale_ref::get() const -> Locale {
static_assert(std::is_same<Locale, locale>::value, "");
#if FMT_USE_LOCALE
if (locale_) return *static_cast<const locale*>(locale_);
#endif
return locale();
}
template <typename Char>
FMT_FUNC auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result<Char> {
auto& facet = std::use_facet<std::numpunct<Char>>(loc.get<std::locale>());
auto&& facet = use_facet<numpunct<Char>>(loc.get<locale>());
auto grouping = facet.grouping();
auto thousands_sep = grouping.empty() ? Char() : facet.thousands_sep();
return {std::move(grouping), thousands_sep};
}
template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref loc) {
return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>())
.decimal_point();
}
#else
template <typename Char>
FMT_FUNC auto thousands_sep_impl(locale_ref) -> thousands_sep_result<Char> {
return {"\03", FMT_STATIC_THOUSANDS_SEPARATOR};
FMT_FUNC auto decimal_point_impl(locale_ref loc) -> Char {
return use_facet<numpunct<Char>>(loc.get<locale>()).decimal_point();
}
template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref) {
return '.';
}
#endif
#if FMT_USE_LOCALE
FMT_FUNC auto write_loc(appender out, loc_value value,
const format_specs<>& specs, locale_ref loc) -> bool {
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
const format_specs& specs, locale_ref loc) -> bool {
auto locale = loc.get<std::locale>();
// We cannot use the num_put<char> facet because it may produce output in
// a wrong encoding.
using facet = format_facet<std::locale>;
if (std::has_facet<facet>(locale))
return std::use_facet<facet>(locale).put(out, value, specs);
return use_facet<facet>(locale).put(out, value, specs);
return facet(locale).put(out, value, specs);
#endif
return false;
}
#endif
} // namespace detail
FMT_FUNC void report_error(const char* message) {
#if FMT_USE_EXCEPTIONS
throw format_error(message);
#else
fputs(message, stderr);
abort();
#endif
}
template <typename Locale> typename Locale::id format_facet<Locale>::id;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template <typename Locale> format_facet<Locale>::format_facet(Locale& loc) {
auto& numpunct = std::use_facet<std::numpunct<char>>(loc);
grouping_ = numpunct.grouping();
if (!grouping_.empty()) separator_ = std::string(1, numpunct.thousands_sep());
auto& np = detail::use_facet<detail::numpunct<char>>(loc);
grouping_ = np.grouping();
if (!grouping_.empty()) separator_ = std::string(1, np.thousands_sep());
}
#if FMT_USE_LOCALE
template <>
FMT_API FMT_FUNC auto format_facet<std::locale>::do_put(
appender out, loc_value val, const format_specs<>& specs) const -> bool {
appender out, loc_value val, const format_specs& specs) const -> bool {
return val.visit(
detail::loc_writer<>{out, specs, separator_, grouping_, decimal_point_});
}
#endif
FMT_FUNC std::system_error vsystem_error(int error_code, string_view fmt,
format_args args) {
FMT_FUNC auto vsystem_error(int error_code, string_view fmt, format_args args)
-> std::system_error {
auto ec = std::error_code(error_code, std::generic_category());
return std::system_error(ec, vformat(fmt, args));
}
namespace detail {
template <typename F> inline bool operator==(basic_fp<F> x, basic_fp<F> y) {
template <typename F>
inline auto operator==(basic_fp<F> x, basic_fp<F> y) -> bool {
return x.f == y.f && x.e == y.e;
}
// Compilers should be able to optimize this into the ror instruction.
FMT_CONSTEXPR inline uint32_t rotr(uint32_t n, uint32_t r) noexcept {
FMT_CONSTEXPR inline auto rotr(uint32_t n, uint32_t r) noexcept -> uint32_t {
r &= 31;
return (n >> r) | (n << (32 - r));
}
FMT_CONSTEXPR inline uint64_t rotr(uint64_t n, uint32_t r) noexcept {
FMT_CONSTEXPR inline auto rotr(uint64_t n, uint32_t r) noexcept -> uint64_t {
r &= 63;
return (n >> r) | (n << (64 - r));
}
@ -170,14 +185,14 @@ FMT_CONSTEXPR inline uint64_t rotr(uint64_t n, uint32_t r) noexcept {
namespace dragonbox {
// Computes upper 64 bits of multiplication of a 32-bit unsigned integer and a
// 64-bit unsigned integer.
inline uint64_t umul96_upper64(uint32_t x, uint64_t y) noexcept {
inline auto umul96_upper64(uint32_t x, uint64_t y) noexcept -> uint64_t {
return umul128_upper64(static_cast<uint64_t>(x) << 32, y);
}
// Computes lower 128 bits of multiplication of a 64-bit unsigned integer and a
// 128-bit unsigned integer.
inline uint128_fallback umul192_lower128(uint64_t x,
uint128_fallback y) noexcept {
inline auto umul192_lower128(uint64_t x, uint128_fallback y) noexcept
-> uint128_fallback {
uint64_t high = x * y.high();
uint128_fallback high_low = umul128(x, y.low());
return {high + high_low.high(), high_low.low()};
@ -185,12 +200,12 @@ inline uint128_fallback umul192_lower128(uint64_t x,
// Computes lower 64 bits of multiplication of a 32-bit unsigned integer and a
// 64-bit unsigned integer.
inline uint64_t umul96_lower64(uint32_t x, uint64_t y) noexcept {
inline auto umul96_lower64(uint32_t x, uint64_t y) noexcept -> uint64_t {
return x * y;
}
// Various fast log computations.
inline int floor_log10_pow2_minus_log10_4_over_3(int e) noexcept {
inline auto floor_log10_pow2_minus_log10_4_over_3(int e) noexcept -> int {
FMT_ASSERT(e <= 2936 && e >= -2985, "too large exponent");
return (e * 631305 - 261663) >> 21;
}
@ -204,7 +219,7 @@ FMT_INLINE_VARIABLE constexpr struct {
// divisible by pow(10, N).
// Precondition: n <= pow(10, N + 1).
template <int N>
bool check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept {
auto check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept -> bool {
// The numbers below are chosen such that:
// 1. floor(n/d) = floor(nm / 2^k) where d=10 or d=100,
// 2. nm mod 2^k < m if and only if n is divisible by d,
@ -229,7 +244,7 @@ bool check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept {
// Computes floor(n / pow(10, N)) for small n and N.
// Precondition: n <= pow(10, N + 1).
template <int N> uint32_t small_division_by_pow10(uint32_t n) noexcept {
template <int N> auto small_division_by_pow10(uint32_t n) noexcept -> uint32_t {
constexpr auto info = div_small_pow10_infos[N - 1];
FMT_ASSERT(n <= info.divisor * 10, "n is too large");
constexpr uint32_t magic_number =
@ -238,12 +253,12 @@ template <int N> uint32_t small_division_by_pow10(uint32_t n) noexcept {
}
// Computes floor(n / 10^(kappa + 1)) (float)
inline uint32_t divide_by_10_to_kappa_plus_1(uint32_t n) noexcept {
inline auto divide_by_10_to_kappa_plus_1(uint32_t n) noexcept -> uint32_t {
// 1374389535 = ceil(2^37/100)
return static_cast<uint32_t>((static_cast<uint64_t>(n) * 1374389535) >> 37);
}
// Computes floor(n / 10^(kappa + 1)) (double)
inline uint64_t divide_by_10_to_kappa_plus_1(uint64_t n) noexcept {
inline auto divide_by_10_to_kappa_plus_1(uint64_t n) noexcept -> uint64_t {
// 2361183241434822607 = ceil(2^(64+7)/1000)
return umul128_upper64(n, 2361183241434822607ull) >> 7;
}
@ -255,7 +270,7 @@ template <> struct cache_accessor<float> {
using carrier_uint = float_info<float>::carrier_uint;
using cache_entry_type = uint64_t;
static uint64_t get_cached_power(int k) noexcept {
static auto get_cached_power(int k) noexcept -> uint64_t {
FMT_ASSERT(k >= float_info<float>::min_k && k <= float_info<float>::max_k,
"k is out of range");
static constexpr const uint64_t pow10_significands[] = {
@ -297,20 +312,23 @@ template <> struct cache_accessor<float> {
bool is_integer;
};
static compute_mul_result compute_mul(
carrier_uint u, const cache_entry_type& cache) noexcept {
static auto compute_mul(carrier_uint u,
const cache_entry_type& cache) noexcept
-> compute_mul_result {
auto r = umul96_upper64(u, cache);
return {static_cast<carrier_uint>(r >> 32),
static_cast<carrier_uint>(r) == 0};
}
static uint32_t compute_delta(const cache_entry_type& cache,
int beta) noexcept {
static auto compute_delta(const cache_entry_type& cache, int beta) noexcept
-> uint32_t {
return static_cast<uint32_t>(cache >> (64 - 1 - beta));
}
static compute_mul_parity_result compute_mul_parity(
carrier_uint two_f, const cache_entry_type& cache, int beta) noexcept {
static auto compute_mul_parity(carrier_uint two_f,
const cache_entry_type& cache,
int beta) noexcept
-> compute_mul_parity_result {
FMT_ASSERT(beta >= 1, "");
FMT_ASSERT(beta < 64, "");
@ -319,22 +337,22 @@ template <> struct cache_accessor<float> {
static_cast<uint32_t>(r >> (32 - beta)) == 0};
}
static carrier_uint compute_left_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept {
static auto compute_left_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
return static_cast<carrier_uint>(
(cache - (cache >> (num_significand_bits<float>() + 2))) >>
(64 - num_significand_bits<float>() - 1 - beta));
}
static carrier_uint compute_right_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept {
static auto compute_right_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
return static_cast<carrier_uint>(
(cache + (cache >> (num_significand_bits<float>() + 1))) >>
(64 - num_significand_bits<float>() - 1 - beta));
}
static carrier_uint compute_round_up_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept {
static auto compute_round_up_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
return (static_cast<carrier_uint>(
cache >> (64 - num_significand_bits<float>() - 2 - beta)) +
1) /
@ -346,7 +364,7 @@ template <> struct cache_accessor<double> {
using carrier_uint = float_info<double>::carrier_uint;
using cache_entry_type = uint128_fallback;
static uint128_fallback get_cached_power(int k) noexcept {
static auto get_cached_power(int k) noexcept -> uint128_fallback {
FMT_ASSERT(k >= float_info<double>::min_k && k <= float_info<double>::max_k,
"k is out of range");
@ -985,8 +1003,7 @@ template <> struct cache_accessor<double> {
{0xe0accfa875af45a7, 0x93eb1b80a33b8606},
{0x8c6c01c9498d8b88, 0xbc72f130660533c4},
{0xaf87023b9bf0ee6a, 0xeb8fad7c7f8680b5},
{ 0xdb68c2ca82ed2a05,
0xa67398db9f6820e2 }
{0xdb68c2ca82ed2a05, 0xa67398db9f6820e2},
#else
{0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b},
{0xce5d73ff402d98e3, 0xfb0a3d212dc81290},
@ -1071,19 +1088,22 @@ template <> struct cache_accessor<double> {
bool is_integer;
};
static compute_mul_result compute_mul(
carrier_uint u, const cache_entry_type& cache) noexcept {
static auto compute_mul(carrier_uint u,
const cache_entry_type& cache) noexcept
-> compute_mul_result {
auto r = umul192_upper128(u, cache);
return {r.high(), r.low() == 0};
}
static uint32_t compute_delta(cache_entry_type const& cache,
int beta) noexcept {
static auto compute_delta(cache_entry_type const& cache, int beta) noexcept
-> uint32_t {
return static_cast<uint32_t>(cache.high() >> (64 - 1 - beta));
}
static compute_mul_parity_result compute_mul_parity(
carrier_uint two_f, const cache_entry_type& cache, int beta) noexcept {
static auto compute_mul_parity(carrier_uint two_f,
const cache_entry_type& cache,
int beta) noexcept
-> compute_mul_parity_result {
FMT_ASSERT(beta >= 1, "");
FMT_ASSERT(beta < 64, "");
@ -1092,35 +1112,35 @@ template <> struct cache_accessor<double> {
((r.high() << beta) | (r.low() >> (64 - beta))) == 0};
}
static carrier_uint compute_left_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept {
static auto compute_left_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
return (cache.high() -
(cache.high() >> (num_significand_bits<double>() + 2))) >>
(64 - num_significand_bits<double>() - 1 - beta);
}
static carrier_uint compute_right_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept {
static auto compute_right_endpoint_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
return (cache.high() +
(cache.high() >> (num_significand_bits<double>() + 1))) >>
(64 - num_significand_bits<double>() - 1 - beta);
}
static carrier_uint compute_round_up_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept {
static auto compute_round_up_for_shorter_interval_case(
const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
return ((cache.high() >> (64 - num_significand_bits<double>() - 2 - beta)) +
1) /
2;
}
};
FMT_FUNC uint128_fallback get_cached_power(int k) noexcept {
FMT_FUNC auto get_cached_power(int k) noexcept -> uint128_fallback {
return cache_accessor<double>::get_cached_power(k);
}
// Various integer checks
template <typename T>
bool is_left_endpoint_integer_shorter_interval(int exponent) noexcept {
auto is_left_endpoint_integer_shorter_interval(int exponent) noexcept -> bool {
const int case_shorter_interval_left_endpoint_lower_threshold = 2;
const int case_shorter_interval_left_endpoint_upper_threshold = 3;
return exponent >= case_shorter_interval_left_endpoint_lower_threshold &&
@ -1132,7 +1152,7 @@ FMT_INLINE int remove_trailing_zeros(uint32_t& n, int s = 0) noexcept {
FMT_ASSERT(n != 0, "");
// Modular inverse of 5 (mod 2^32): (mod_inv_5 * 5) mod 2^32 = 1.
constexpr uint32_t mod_inv_5 = 0xcccccccd;
constexpr uint32_t mod_inv_25 = 0xc28f5c29; // = mod_inv_5 * mod_inv_5
constexpr uint32_t mod_inv_25 = 0xc28f5c29; // = mod_inv_5 * mod_inv_5
while (true) {
auto q = rotr(n * mod_inv_25, 2);
@ -1168,7 +1188,7 @@ FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept {
// If n is not divisible by 10^8, work with n itself.
constexpr uint64_t mod_inv_5 = 0xcccccccccccccccd;
constexpr uint64_t mod_inv_25 = 0x8f5c28f5c28f5c29; // = mod_inv_5 * mod_inv_5
constexpr uint64_t mod_inv_25 = 0x8f5c28f5c28f5c29; // mod_inv_5 * mod_inv_5
int s = 0;
while (true) {
@ -1234,7 +1254,7 @@ FMT_INLINE decimal_fp<T> shorter_interval_case(int exponent) noexcept {
return ret_value;
}
template <typename T> decimal_fp<T> to_decimal(T x) noexcept {
template <typename T> auto to_decimal(T x) noexcept -> decimal_fp<T> {
// Step 1: integer promotion & Schubfach multiplier calculation.
using carrier_uint = typename float_info<T>::carrier_uint;
@ -1373,15 +1393,15 @@ template <> struct formatter<detail::bigint> {
for (auto i = n.bigits_.size(); i > 0; --i) {
auto value = n.bigits_[i - 1u];
if (first) {
out = format_to(out, FMT_STRING("{:x}"), value);
out = fmt::format_to(out, FMT_STRING("{:x}"), value);
first = false;
continue;
}
out = format_to(out, FMT_STRING("{:08x}"), value);
out = fmt::format_to(out, FMT_STRING("{:08x}"), value);
}
if (n.exp_ > 0)
out = format_to(out, FMT_STRING("p{}"),
n.exp_ * detail::bigint::bigit_bits);
out = fmt::format_to(out, FMT_STRING("p{}"),
n.exp_ * detail::bigint::bigit_bits);
return out;
}
};
@ -1405,7 +1425,7 @@ FMT_FUNC void format_system_error(detail::buffer<char>& out, int error_code,
const char* message) noexcept {
FMT_TRY {
auto ec = std::error_code(error_code, std::generic_category());
write(std::back_inserter(out), std::system_error(ec, message).what());
detail::write(appender(out), std::system_error(ec, message).what());
return;
}
FMT_CATCH(...) {}
@ -1414,10 +1434,10 @@ FMT_FUNC void format_system_error(detail::buffer<char>& out, int error_code,
FMT_FUNC void report_system_error(int error_code,
const char* message) noexcept {
report_error(format_system_error, error_code, message);
do_report_error(format_system_error, error_code, message);
}
FMT_FUNC std::string vformat(string_view fmt, format_args args) {
FMT_FUNC auto vformat(string_view fmt, format_args args) -> std::string {
// Don't optimize the "{}" case to keep the binary size small and because it
// can be better optimized in fmt::format anyway.
auto buffer = memory_buffer();
@ -1426,42 +1446,307 @@ FMT_FUNC std::string vformat(string_view fmt, format_args args) {
}
namespace detail {
#ifndef _WIN32
FMT_FUNC bool write_console(std::FILE*, string_view) { return false; }
FMT_FUNC void vformat_to(buffer<char>& buf, string_view fmt, format_args args,
locale_ref loc) {
auto out = appender(buf);
if (fmt.size() == 2 && equal2(fmt.data(), "{}"))
return args.get(0).visit(default_arg_formatter<char>{out});
parse_format_string(
fmt, format_handler<char>{parse_context<char>(fmt), {out, args, loc}});
}
template <typename T> struct span {
T* data;
size_t size;
};
template <typename F> auto flockfile(F* f) -> decltype(_lock_file(f)) {
_lock_file(f);
}
template <typename F> auto funlockfile(F* f) -> decltype(_unlock_file(f)) {
_unlock_file(f);
}
#ifndef getc_unlocked
template <typename F> auto getc_unlocked(F* f) -> decltype(_fgetc_nolock(f)) {
return _fgetc_nolock(f);
}
#endif
template <typename F = FILE, typename Enable = void>
struct has_flockfile : std::false_type {};
template <typename F>
struct has_flockfile<F, void_t<decltype(flockfile(&std::declval<F&>()))>>
: std::true_type {};
// A FILE wrapper. F is FILE defined as a template parameter to make system API
// detection work.
template <typename F> class file_base {
public:
F* file_;
public:
file_base(F* file) : file_(file) {}
operator F*() const { return file_; }
// Reads a code unit from the stream.
auto get() -> int {
int result = getc_unlocked(file_);
if (result == EOF && ferror(file_) != 0)
FMT_THROW(system_error(errno, FMT_STRING("getc failed")));
return result;
}
// Puts the code unit back into the stream buffer.
void unget(char c) {
if (ungetc(c, file_) == EOF)
FMT_THROW(system_error(errno, FMT_STRING("ungetc failed")));
}
void flush() { fflush(this->file_); }
};
// A FILE wrapper for glibc.
template <typename F> class glibc_file : public file_base<F> {
private:
enum {
line_buffered = 0x200, // _IO_LINE_BUF
unbuffered = 2 // _IO_UNBUFFERED
};
public:
using file_base<F>::file_base;
auto is_buffered() const -> bool {
return (this->file_->_flags & unbuffered) == 0;
}
void init_buffer() {
if (this->file_->_IO_write_ptr) return;
// Force buffer initialization by placing and removing a char in a buffer.
assume(this->file_->_IO_write_ptr >= this->file_->_IO_write_end);
putc_unlocked(0, this->file_);
--this->file_->_IO_write_ptr;
}
// Returns the file's read buffer.
auto get_read_buffer() const -> span<const char> {
auto ptr = this->file_->_IO_read_ptr;
return {ptr, to_unsigned(this->file_->_IO_read_end - ptr)};
}
// Returns the file's write buffer.
auto get_write_buffer() const -> span<char> {
auto ptr = this->file_->_IO_write_ptr;
return {ptr, to_unsigned(this->file_->_IO_buf_end - ptr)};
}
void advance_write_buffer(size_t size) { this->file_->_IO_write_ptr += size; }
bool needs_flush() const {
if ((this->file_->_flags & line_buffered) == 0) return false;
char* end = this->file_->_IO_write_end;
return memchr(end, '\n', to_unsigned(this->file_->_IO_write_ptr - end));
}
void flush() { fflush_unlocked(this->file_); }
};
// A FILE wrapper for Apple's libc.
template <typename F> class apple_file : public file_base<F> {
private:
enum {
line_buffered = 1, // __SNBF
unbuffered = 2 // __SLBF
};
public:
using file_base<F>::file_base;
auto is_buffered() const -> bool {
return (this->file_->_flags & unbuffered) == 0;
}
void init_buffer() {
if (this->file_->_p) return;
// Force buffer initialization by placing and removing a char in a buffer.
putc_unlocked(0, this->file_);
--this->file_->_p;
++this->file_->_w;
}
auto get_read_buffer() const -> span<const char> {
return {reinterpret_cast<char*>(this->file_->_p),
to_unsigned(this->file_->_r)};
}
auto get_write_buffer() const -> span<char> {
return {reinterpret_cast<char*>(this->file_->_p),
to_unsigned(this->file_->_bf._base + this->file_->_bf._size -
this->file_->_p)};
}
void advance_write_buffer(size_t size) {
this->file_->_p += size;
this->file_->_w -= size;
}
bool needs_flush() const {
if ((this->file_->_flags & line_buffered) == 0) return false;
return memchr(this->file_->_p + this->file_->_w, '\n',
to_unsigned(-this->file_->_w));
}
};
// A fallback FILE wrapper.
template <typename F> class fallback_file : public file_base<F> {
private:
char next_; // The next unconsumed character in the buffer.
bool has_next_ = false;
public:
using file_base<F>::file_base;
auto is_buffered() const -> bool { return false; }
auto needs_flush() const -> bool { return false; }
void init_buffer() {}
auto get_read_buffer() const -> span<const char> {
return {&next_, has_next_ ? 1u : 0u};
}
auto get_write_buffer() const -> span<char> { return {nullptr, 0}; }
void advance_write_buffer(size_t) {}
auto get() -> int {
has_next_ = false;
return file_base<F>::get();
}
void unget(char c) {
file_base<F>::unget(c);
next_ = c;
has_next_ = true;
}
};
#ifndef FMT_USE_FALLBACK_FILE
# define FMT_USE_FALLBACK_FILE 0
#endif
template <typename F,
FMT_ENABLE_IF(sizeof(F::_p) != 0 && !FMT_USE_FALLBACK_FILE)>
auto get_file(F* f, int) -> apple_file<F> {
return f;
}
template <typename F,
FMT_ENABLE_IF(sizeof(F::_IO_read_ptr) != 0 && !FMT_USE_FALLBACK_FILE)>
inline auto get_file(F* f, int) -> glibc_file<F> {
return f;
}
inline auto get_file(FILE* f, ...) -> fallback_file<FILE> { return f; }
using file_ref = decltype(get_file(static_cast<FILE*>(nullptr), 0));
template <typename F = FILE, typename Enable = void>
class file_print_buffer : public buffer<char> {
public:
explicit file_print_buffer(F*) : buffer(nullptr, size_t()) {}
};
template <typename F>
class file_print_buffer<F, enable_if_t<has_flockfile<F>::value>>
: public buffer<char> {
private:
file_ref file_;
static void grow(buffer<char>& base, size_t) {
auto& self = static_cast<file_print_buffer&>(base);
self.file_.advance_write_buffer(self.size());
if (self.file_.get_write_buffer().size == 0) self.file_.flush();
auto buf = self.file_.get_write_buffer();
FMT_ASSERT(buf.size > 0, "");
self.set(buf.data, buf.size);
self.clear();
}
public:
explicit file_print_buffer(F* f) : buffer(grow, size_t()), file_(f) {
flockfile(f);
file_.init_buffer();
auto buf = file_.get_write_buffer();
set(buf.data, buf.size);
}
~file_print_buffer() {
file_.advance_write_buffer(size());
bool flush = file_.needs_flush();
F* f = file_; // Make funlockfile depend on the template parameter F
funlockfile(f); // for the system API detection to work.
if (flush) fflush(file_);
}
};
#if !defined(_WIN32) || defined(FMT_USE_WRITE_CONSOLE)
FMT_FUNC auto write_console(int, string_view) -> bool { return false; }
#else
using dword = conditional_t<sizeof(long) == 4, unsigned long, unsigned>;
extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( //
void*, const void*, dword, dword*, void*);
FMT_FUNC bool write_console(std::FILE* f, string_view text) {
auto fd = _fileno(f);
if (!_isatty(fd)) return false;
FMT_FUNC bool write_console(int fd, string_view text) {
auto u16 = utf8_to_utf16(text);
auto written = dword();
return WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)), u16.c_str(),
static_cast<uint32_t>(u16.size()), &written, nullptr) != 0;
static_cast<dword>(u16.size()), nullptr, nullptr) != 0;
}
#endif
#ifdef _WIN32
// Print assuming legacy (non-Unicode) encoding.
FMT_FUNC void vprint_mojibake(std::FILE* f, string_view fmt, format_args args) {
FMT_FUNC void vprint_mojibake(std::FILE* f, string_view fmt, format_args args,
bool newline) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, fmt,
basic_format_args<buffer_context<char>>(args));
fwrite_fully(buffer.data(), 1, buffer.size(), f);
detail::vformat_to(buffer, fmt, args);
if (newline) buffer.push_back('\n');
fwrite_all(buffer.data(), buffer.size(), f);
}
#endif
FMT_FUNC void print(std::FILE* f, string_view text) {
if (!write_console(f, text)) fwrite_fully(text.data(), 1, text.size(), f);
#if defined(_WIN32) && !defined(FMT_USE_WRITE_CONSOLE)
int fd = _fileno(f);
if (_isatty(fd)) {
std::fflush(f);
if (write_console(fd, text)) return;
}
#endif
fwrite_all(text.data(), text.size(), f);
}
} // namespace detail
FMT_FUNC void vprint(std::FILE* f, string_view fmt, format_args args) {
FMT_FUNC void vprint_buffered(std::FILE* f, string_view fmt, format_args args) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, fmt, args);
detail::print(f, {buffer.data(), buffer.size()});
}
FMT_FUNC void vprint(std::FILE* f, string_view fmt, format_args args) {
if (!detail::file_ref(f).is_buffered() || !detail::has_flockfile<>())
return vprint_buffered(f, fmt, args);
auto&& buffer = detail::file_print_buffer<>(f);
return detail::vformat_to(buffer, fmt, args);
}
FMT_FUNC void vprintln(std::FILE* f, string_view fmt, format_args args) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, fmt, args);
buffer.push_back('\n');
detail::print(f, {buffer.data(), buffer.size()});
}
FMT_FUNC void vprint(string_view fmt, format_args args) {
vprint(stdout, fmt, args);
}

3356
thirdparty/fmt/include/fmt/format.h vendored
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File diff suppressed because it is too large Load diff

296
thirdparty/fmt/include/fmt/os.h vendored
View file

@ -8,17 +8,19 @@
#ifndef FMT_OS_H_
#define FMT_OS_H_
#include <cerrno>
#include <cstddef>
#include <cstdio>
#include <system_error> // std::system_error
#if defined __APPLE__ || defined(__FreeBSD__)
# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
#endif
#include "format.h"
#ifndef FMT_MODULE
# include <cerrno>
# include <cstddef>
# include <cstdio>
# include <system_error> // std::system_error
# if FMT_HAS_INCLUDE(<xlocale.h>)
# include <xlocale.h> // LC_NUMERIC_MASK on macOS
# endif
#endif // FMT_MODULE
#ifndef FMT_USE_FCNTL
// UWP doesn't provide _pipe.
# if FMT_HAS_INCLUDE("winapifamily.h")
@ -46,6 +48,7 @@
// Calls to system functions are wrapped in FMT_SYSTEM for testability.
#ifdef FMT_SYSTEM
# define FMT_HAS_SYSTEM
# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
#else
# define FMT_SYSTEM(call) ::call
@ -74,47 +77,34 @@ FMT_BEGIN_NAMESPACE
FMT_BEGIN_EXPORT
/**
\rst
A reference to a null-terminated string. It can be constructed from a C
string or ``std::string``.
You can use one of the following type aliases for common character types:
+---------------+-----------------------------+
| Type | Definition |
+===============+=============================+
| cstring_view | basic_cstring_view<char> |
+---------------+-----------------------------+
| wcstring_view | basic_cstring_view<wchar_t> |
+---------------+-----------------------------+
This class is most useful as a parameter type to allow passing
different types of strings to a function, for example::
template <typename... Args>
std::string format(cstring_view format_str, const Args & ... args);
format("{}", 42);
format(std::string("{}"), 42);
\endrst
* A reference to a null-terminated string. It can be constructed from a C
* string or `std::string`.
*
* You can use one of the following type aliases for common character types:
*
* +---------------+-----------------------------+
* | Type | Definition |
* +===============+=============================+
* | cstring_view | basic_cstring_view<char> |
* +---------------+-----------------------------+
* | wcstring_view | basic_cstring_view<wchar_t> |
* +---------------+-----------------------------+
*
* This class is most useful as a parameter type for functions that wrap C APIs.
*/
template <typename Char> class basic_cstring_view {
private:
const Char* data_;
public:
/** Constructs a string reference object from a C string. */
/// Constructs a string reference object from a C string.
basic_cstring_view(const Char* s) : data_(s) {}
/**
\rst
Constructs a string reference from an ``std::string`` object.
\endrst
*/
/// Constructs a string reference from an `std::string` object.
basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {}
/** Returns the pointer to a C string. */
const Char* c_str() const { return data_; }
/// Returns the pointer to a C string.
auto c_str() const -> const Char* { return data_; }
};
using cstring_view = basic_cstring_view<char>;
@ -128,48 +118,45 @@ FMT_API void format_windows_error(buffer<char>& out, int error_code,
const char* message) noexcept;
}
FMT_API std::system_error vwindows_error(int error_code, string_view format_str,
FMT_API std::system_error vwindows_error(int error_code, string_view fmt,
format_args args);
/**
\rst
Constructs a :class:`std::system_error` object with the description
of the form
.. parsed-literal::
*<message>*: *<system-message>*
where *<message>* is the formatted message and *<system-message>* is the
system message corresponding to the error code.
*error_code* is a Windows error code as given by ``GetLastError``.
If *error_code* is not a valid error code such as -1, the system message
will look like "error -1".
**Example**::
// This throws a system_error with the description
// cannot open file 'madeup': The system cannot find the file specified.
// or similar (system message may vary).
const char *filename = "madeup";
LPOFSTRUCT of = LPOFSTRUCT();
HFILE file = OpenFile(filename, &of, OF_READ);
if (file == HFILE_ERROR) {
throw fmt::windows_error(GetLastError(),
"cannot open file '{}'", filename);
}
\endrst
*/
template <typename... Args>
std::system_error windows_error(int error_code, string_view message,
const Args&... args) {
return vwindows_error(error_code, message, fmt::make_format_args(args...));
* Constructs a `std::system_error` object with the description of the form
*
* <message>: <system-message>
*
* where `<message>` is the formatted message and `<system-message>` is the
* system message corresponding to the error code.
* `error_code` is a Windows error code as given by `GetLastError`.
* If `error_code` is not a valid error code such as -1, the system message
* will look like "error -1".
*
* **Example**:
*
* // This throws a system_error with the description
* // cannot open file 'madeup': The system cannot find the file
* specified.
* // or similar (system message may vary).
* const char *filename = "madeup";
* LPOFSTRUCT of = LPOFSTRUCT();
* HFILE file = OpenFile(filename, &of, OF_READ);
* if (file == HFILE_ERROR) {
* throw fmt::windows_error(GetLastError(),
* "cannot open file '{}'", filename);
* }
*/
template <typename... T>
auto windows_error(int error_code, string_view message, const T&... args)
-> std::system_error {
return vwindows_error(error_code, message, vargs<T...>{{args...}});
}
// Reports a Windows error without throwing an exception.
// Can be used to report errors from destructors.
FMT_API void report_windows_error(int error_code, const char* message) noexcept;
#else
inline const std::error_category& system_category() noexcept {
inline auto system_category() noexcept -> const std::error_category& {
return std::system_category();
}
#endif // _WIN32
@ -177,8 +164,8 @@ inline const std::error_category& system_category() noexcept {
// std::system is not available on some platforms such as iOS (#2248).
#ifdef __OSX__
template <typename S, typename... Args, typename Char = char_t<S>>
void say(const S& format_str, Args&&... args) {
std::system(format("say \"{}\"", format(format_str, args...)).c_str());
void say(const S& fmt, Args&&... args) {
std::system(format("say \"{}\"", format(fmt, args...)).c_str());
}
#endif
@ -189,24 +176,24 @@ class buffered_file {
friend class file;
explicit buffered_file(FILE* f) : file_(f) {}
inline explicit buffered_file(FILE* f) : file_(f) {}
public:
buffered_file(const buffered_file&) = delete;
void operator=(const buffered_file&) = delete;
// Constructs a buffered_file object which doesn't represent any file.
buffered_file() noexcept : file_(nullptr) {}
inline buffered_file() noexcept : file_(nullptr) {}
// Destroys the object closing the file it represents if any.
FMT_API ~buffered_file() noexcept;
public:
buffered_file(buffered_file&& other) noexcept : file_(other.file_) {
inline buffered_file(buffered_file&& other) noexcept : file_(other.file_) {
other.file_ = nullptr;
}
buffered_file& operator=(buffered_file&& other) {
inline auto operator=(buffered_file&& other) -> buffered_file& {
close();
file_ = other.file_;
other.file_ = nullptr;
@ -220,21 +207,20 @@ class buffered_file {
FMT_API void close();
// Returns the pointer to a FILE object representing this file.
FILE* get() const noexcept { return file_; }
inline auto get() const noexcept -> FILE* { return file_; }
FMT_API int descriptor() const;
FMT_API auto descriptor() const -> int;
void vprint(string_view format_str, format_args args) {
fmt::vprint(file_, format_str, args);
}
template <typename... Args>
inline void print(string_view format_str, const Args&... args) {
vprint(format_str, fmt::make_format_args(args...));
template <typename... T>
inline void print(string_view fmt, const T&... args) {
fmt::vargs<T...> vargs = {{args...}};
detail::is_locking<T...>() ? fmt::vprint_buffered(file_, fmt, vargs)
: fmt::vprint(file_, fmt, vargs);
}
};
#if FMT_USE_FCNTL
// A file. Closed file is represented by a file object with descriptor -1.
// Methods that are not declared with noexcept may throw
// fmt::system_error in case of failure. Note that some errors such as
@ -248,6 +234,8 @@ class FMT_API file {
// Constructs a file object with a given descriptor.
explicit file(int fd) : fd_(fd) {}
friend struct pipe;
public:
// Possible values for the oflag argument to the constructor.
enum {
@ -260,7 +248,7 @@ class FMT_API file {
};
// Constructs a file object which doesn't represent any file.
file() noexcept : fd_(-1) {}
inline file() noexcept : fd_(-1) {}
// Opens a file and constructs a file object representing this file.
file(cstring_view path, int oflag);
@ -269,10 +257,10 @@ class FMT_API file {
file(const file&) = delete;
void operator=(const file&) = delete;
file(file&& other) noexcept : fd_(other.fd_) { other.fd_ = -1; }
inline file(file&& other) noexcept : fd_(other.fd_) { other.fd_ = -1; }
// Move assignment is not noexcept because close may throw.
file& operator=(file&& other) {
inline auto operator=(file&& other) -> file& {
close();
fd_ = other.fd_;
other.fd_ = -1;
@ -283,24 +271,24 @@ class FMT_API file {
~file() noexcept;
// Returns the file descriptor.
int descriptor() const noexcept { return fd_; }
inline auto descriptor() const noexcept -> int { return fd_; }
// Closes the file.
void close();
// Returns the file size. The size has signed type for consistency with
// stat::st_size.
long long size() const;
auto size() const -> long long;
// Attempts to read count bytes from the file into the specified buffer.
size_t read(void* buffer, size_t count);
auto read(void* buffer, size_t count) -> size_t;
// Attempts to write count bytes from the specified buffer to the file.
size_t write(const void* buffer, size_t count);
auto write(const void* buffer, size_t count) -> size_t;
// Duplicates a file descriptor with the dup function and returns
// the duplicate as a file object.
static file dup(int fd);
static auto dup(int fd) -> file;
// Makes fd be the copy of this file descriptor, closing fd first if
// necessary.
@ -310,13 +298,9 @@ class FMT_API file {
// necessary.
void dup2(int fd, std::error_code& ec) noexcept;
// Creates a pipe setting up read_end and write_end file objects for reading
// and writing respectively.
static void pipe(file& read_end, file& write_end);
// Creates a buffered_file object associated with this file and detaches
// this file object from the file.
buffered_file fdopen(const char* mode);
auto fdopen(const char* mode) -> buffered_file;
# if defined(_WIN32) && !defined(__MINGW32__)
// Opens a file and constructs a file object representing this file by
@ -325,15 +309,24 @@ class FMT_API file {
# endif
};
struct FMT_API pipe {
file read_end;
file write_end;
// Creates a pipe setting up read_end and write_end file objects for reading
// and writing respectively.
pipe();
};
// Returns the memory page size.
long getpagesize();
auto getpagesize() -> long;
namespace detail {
struct buffer_size {
buffer_size() = default;
constexpr buffer_size() = default;
size_t value = 0;
buffer_size operator=(size_t val) const {
FMT_CONSTEXPR auto operator=(size_t val) const -> buffer_size {
auto bs = buffer_size();
bs.value = val;
return bs;
@ -344,7 +337,7 @@ struct ostream_params {
int oflag = file::WRONLY | file::CREATE | file::TRUNC;
size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768;
ostream_params() {}
constexpr ostream_params() {}
template <typename... T>
ostream_params(T... params, int new_oflag) : ostream_params(params...) {
@ -365,82 +358,65 @@ struct ostream_params {
# endif
};
class file_buffer final : public buffer<char> {
} // namespace detail
FMT_INLINE_VARIABLE constexpr auto buffer_size = detail::buffer_size();
/// A fast buffered output stream for writing from a single thread. Writing from
/// multiple threads without external synchronization may result in a data race.
class FMT_API ostream : private detail::buffer<char> {
private:
file file_;
FMT_API void grow(size_t) override;
ostream(cstring_view path, const detail::ostream_params& params);
static void grow(buffer<char>& buf, size_t);
public:
FMT_API file_buffer(cstring_view path, const ostream_params& params);
FMT_API file_buffer(file_buffer&& other);
FMT_API ~file_buffer();
ostream(ostream&& other) noexcept;
~ostream();
void flush() {
operator writer() {
detail::buffer<char>& buf = *this;
return buf;
}
inline void flush() {
if (size() == 0) return;
file_.write(data(), size() * sizeof(data()[0]));
clear();
}
void close() {
template <typename... T>
friend auto output_file(cstring_view path, T... params) -> ostream;
inline void close() {
flush();
file_.close();
}
};
} // namespace detail
// Added {} below to work around default constructor error known to
// occur in Xcode versions 7.2.1 and 8.2.1.
constexpr detail::buffer_size buffer_size{};
/** A fast output stream which is not thread-safe. */
class FMT_API ostream {
private:
FMT_MSC_WARNING(suppress : 4251)
detail::file_buffer buffer_;
ostream(cstring_view path, const detail::ostream_params& params)
: buffer_(path, params) {}
public:
ostream(ostream&& other) : buffer_(std::move(other.buffer_)) {}
~ostream();
void flush() { buffer_.flush(); }
template <typename... T>
friend ostream output_file(cstring_view path, T... params);
void close() { buffer_.close(); }
/**
Formats ``args`` according to specifications in ``fmt`` and writes the
output to the file.
*/
/// Formats `args` according to specifications in `fmt` and writes the
/// output to the file.
template <typename... T> void print(format_string<T...> fmt, T&&... args) {
vformat_to(detail::buffer_appender<char>(buffer_), fmt,
fmt::make_format_args(args...));
vformat_to(appender(*this), fmt.str, vargs<T...>{{args...}});
}
};
/**
\rst
Opens a file for writing. Supported parameters passed in *params*:
* ``<integer>``: Flags passed to `open
<https://pubs.opengroup.org/onlinepubs/007904875/functions/open.html>`_
(``file::WRONLY | file::CREATE | file::TRUNC`` by default)
* ``buffer_size=<integer>``: Output buffer size
**Example**::
auto out = fmt::output_file("guide.txt");
out.print("Don't {}", "Panic");
\endrst
* Opens a file for writing. Supported parameters passed in `params`:
*
* - `<integer>`: Flags passed to [open](
* https://pubs.opengroup.org/onlinepubs/007904875/functions/open.html)
* (`file::WRONLY | file::CREATE | file::TRUNC` by default)
* - `buffer_size=<integer>`: Output buffer size
*
* **Example**:
*
* auto out = fmt::output_file("guide.txt");
* out.print("Don't {}", "Panic");
*/
template <typename... T>
inline ostream output_file(cstring_view path, T... params) {
inline auto output_file(cstring_view path, T... params) -> ostream {
return {path, detail::ostream_params(params...)};
}
#endif // FMT_USE_FCNTL

191
thirdparty/fmt/include/fmt/ostream.h vendored
View file

@ -8,19 +8,29 @@
#ifndef FMT_OSTREAM_H_
#define FMT_OSTREAM_H_
#include <fstream> // std::filebuf
#if defined(_WIN32) && defined(__GLIBCXX__)
# include <ext/stdio_filebuf.h>
# include <ext/stdio_sync_filebuf.h>
#elif defined(_WIN32) && defined(_LIBCPP_VERSION)
# include <__std_stream>
#ifndef FMT_MODULE
# include <fstream> // std::filebuf
#endif
#include "format.h"
#ifdef _WIN32
# ifdef __GLIBCXX__
# include <ext/stdio_filebuf.h>
# include <ext/stdio_sync_filebuf.h>
# endif
# include <io.h>
#endif
#include "chrono.h" // formatbuf
#ifdef _MSVC_STL_UPDATE
# define FMT_MSVC_STL_UPDATE _MSVC_STL_UPDATE
#elif defined(_MSC_VER) && _MSC_VER < 1912 // VS 15.5
# define FMT_MSVC_STL_UPDATE _MSVC_LANG
#else
# define FMT_MSVC_STL_UPDATE 0
#endif
FMT_BEGIN_NAMESPACE
namespace detail {
// Generate a unique explicit instantion in every translation unit using a tag
@ -33,49 +43,18 @@ class file_access {
friend auto get_file(BufType& obj) -> FILE* { return obj.*FileMemberPtr; }
};
#if FMT_MSC_VERSION
#if FMT_MSVC_STL_UPDATE
template class file_access<file_access_tag, std::filebuf,
&std::filebuf::_Myfile>;
auto get_file(std::filebuf&) -> FILE*;
#elif defined(_WIN32) && defined(_LIBCPP_VERSION)
template class file_access<file_access_tag, std::__stdoutbuf<char>,
&std::__stdoutbuf<char>::__file_>;
auto get_file(std::__stdoutbuf<char>&) -> FILE*;
#endif
inline bool write_ostream_unicode(std::ostream& os, fmt::string_view data) {
#if FMT_MSC_VERSION
if (auto* buf = dynamic_cast<std::filebuf*>(os.rdbuf()))
if (FILE* f = get_file(*buf)) return write_console(f, data);
#elif defined(_WIN32) && defined(__GLIBCXX__)
auto* rdbuf = os.rdbuf();
FILE* c_file;
if (auto* sfbuf = dynamic_cast<__gnu_cxx::stdio_sync_filebuf<char>*>(rdbuf))
c_file = sfbuf->file();
else if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_filebuf<char>*>(rdbuf))
c_file = fbuf->file();
else
return false;
if (c_file) return write_console(c_file, data);
#elif defined(_WIN32) && defined(_LIBCPP_VERSION)
if (auto* buf = dynamic_cast<std::__stdoutbuf<char>*>(os.rdbuf()))
if (FILE* f = get_file(*buf)) return write_console(f, data);
#else
ignore_unused(os, data);
#endif
return false;
}
inline bool write_ostream_unicode(std::wostream&,
fmt::basic_string_view<wchar_t>) {
return false;
}
// Write the content of buf to os.
// It is a separate function rather than a part of vprint to simplify testing.
template <typename Char>
void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
const Char* buf_data = buf.data();
using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
using unsigned_streamsize = make_unsigned_t<std::streamsize>;
unsigned_streamsize size = buf.size();
unsigned_streamsize max_size = to_unsigned(max_value<std::streamsize>());
do {
@ -86,20 +65,9 @@ void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
} while (size != 0);
}
template <typename Char, typename T>
void format_value(buffer<Char>& buf, const T& value,
locale_ref loc = locale_ref()) {
auto&& format_buf = formatbuf<std::basic_streambuf<Char>>(buf);
auto&& output = std::basic_ostream<Char>(&format_buf);
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
if (loc) output.imbue(loc.get<std::locale>());
#endif
output << value;
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
}
template <typename T> struct streamed_view { const T& value; };
template <typename T> struct streamed_view {
const T& value;
};
} // namespace detail
// Formats an object of type T that has an overloaded ostream operator<<.
@ -107,11 +75,14 @@ template <typename Char>
struct basic_ostream_formatter : formatter<basic_string_view<Char>, Char> {
void set_debug_format() = delete;
template <typename T, typename OutputIt>
auto format(const T& value, basic_format_context<OutputIt, Char>& ctx) const
-> OutputIt {
template <typename T, typename Context>
auto format(const T& value, Context& ctx) const -> decltype(ctx.out()) {
auto buffer = basic_memory_buffer<Char>();
detail::format_value(buffer, value, ctx.locale());
auto&& formatbuf = detail::formatbuf<std::basic_streambuf<Char>>(buffer);
auto&& output = std::basic_ostream<Char>(&formatbuf);
output.imbue(std::locale::classic()); // The default is always unlocalized.
output << value;
output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
return formatter<basic_string_view<Char>, Char>::format(
{buffer.data(), buffer.size()}, ctx);
}
@ -122,73 +93,67 @@ using ostream_formatter = basic_ostream_formatter<char>;
template <typename T, typename Char>
struct formatter<detail::streamed_view<T>, Char>
: basic_ostream_formatter<Char> {
template <typename OutputIt>
auto format(detail::streamed_view<T> view,
basic_format_context<OutputIt, Char>& ctx) const -> OutputIt {
template <typename Context>
auto format(detail::streamed_view<T> view, Context& ctx) const
-> decltype(ctx.out()) {
return basic_ostream_formatter<Char>::format(view.value, ctx);
}
};
/**
\rst
Returns a view that formats `value` via an ostream ``operator<<``.
**Example**::
fmt::print("Current thread id: {}\n",
fmt::streamed(std::this_thread::get_id()));
\endrst
* Returns a view that formats `value` via an ostream `operator<<`.
*
* **Example**:
*
* fmt::print("Current thread id: {}\n",
* fmt::streamed(std::this_thread::get_id()));
*/
template <typename T>
auto streamed(const T& value) -> detail::streamed_view<T> {
constexpr auto streamed(const T& value) -> detail::streamed_view<T> {
return {value};
}
namespace detail {
inline void vprint_directly(std::ostream& os, string_view format_str,
format_args args) {
inline void vprint(std::ostream& os, string_view fmt, format_args args) {
auto buffer = memory_buffer();
detail::vformat_to(buffer, format_str, args);
detail::write_buffer(os, buffer);
}
} // namespace detail
FMT_EXPORT template <typename Char>
void vprint(std::basic_ostream<Char>& os,
basic_string_view<type_identity_t<Char>> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) {
auto buffer = basic_memory_buffer<Char>();
detail::vformat_to(buffer, format_str, args);
if (detail::write_ostream_unicode(os, {buffer.data(), buffer.size()})) return;
detail::vformat_to(buffer, fmt, args);
FILE* f = nullptr;
#if FMT_MSVC_STL_UPDATE && FMT_USE_RTTI
if (auto* buf = dynamic_cast<std::filebuf*>(os.rdbuf()))
f = detail::get_file(*buf);
#elif defined(_WIN32) && defined(__GLIBCXX__) && FMT_USE_RTTI
auto* rdbuf = os.rdbuf();
if (auto* sfbuf = dynamic_cast<__gnu_cxx::stdio_sync_filebuf<char>*>(rdbuf))
f = sfbuf->file();
else if (auto* fbuf = dynamic_cast<__gnu_cxx::stdio_filebuf<char>*>(rdbuf))
f = fbuf->file();
#endif
#ifdef _WIN32
if (f) {
int fd = _fileno(f);
if (_isatty(fd)) {
os.flush();
if (detail::write_console(fd, {buffer.data(), buffer.size()})) return;
}
}
#endif
detail::ignore_unused(f);
detail::write_buffer(os, buffer);
}
/**
\rst
Prints formatted data to the stream *os*.
**Example**::
fmt::print(cerr, "Don't {}!", "panic");
\endrst
* Prints formatted data to the stream `os`.
*
* **Example**:
*
* fmt::print(cerr, "Don't {}!", "panic");
*/
FMT_EXPORT template <typename... T>
void print(std::ostream& os, format_string<T...> fmt, T&&... args) {
const auto& vargs = fmt::make_format_args(args...);
if (detail::is_utf8())
vprint(os, fmt, vargs);
else
detail::vprint_directly(os, fmt, vargs);
}
FMT_EXPORT
template <typename... Args>
void print(std::wostream& os,
basic_format_string<wchar_t, type_identity_t<Args>...> fmt,
Args&&... args) {
vprint(os, fmt, fmt::make_format_args<buffer_context<wchar_t>>(args...));
fmt::vargs<T...> vargs = {{args...}};
if (detail::use_utf8) return vprint(os, fmt.str, vargs);
auto buffer = memory_buffer();
detail::vformat_to(buffer, fmt.str, vargs);
detail::write_buffer(os, buffer);
}
FMT_EXPORT template <typename... T>
@ -196,14 +161,6 @@ void println(std::ostream& os, format_string<T...> fmt, T&&... args) {
fmt::print(os, "{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
FMT_EXPORT
template <typename... Args>
void println(std::wostream& os,
basic_format_string<wchar_t, type_identity_t<Args>...> fmt,
Args&&... args) {
print(os, L"{}\n", fmt::format(fmt, std::forward<Args>(args)...));
}
FMT_END_NAMESPACE
#endif // FMT_OSTREAM_H_

424
thirdparty/fmt/include/fmt/printf.h vendored
View file

@ -8,60 +8,78 @@
#ifndef FMT_PRINTF_H_
#define FMT_PRINTF_H_
#include <algorithm> // std::max
#include <limits> // std::numeric_limits
#ifndef FMT_MODULE
# include <algorithm> // std::max
# include <limits> // std::numeric_limits
#endif
#include "format.h"
FMT_BEGIN_NAMESPACE
FMT_BEGIN_EXPORT
template <typename T> struct printf_formatter { printf_formatter() = delete; };
template <typename T> struct printf_formatter {
printf_formatter() = delete;
};
template <typename Char> class basic_printf_context {
private:
detail::buffer_appender<Char> out_;
basic_appender<Char> out_;
basic_format_args<basic_printf_context> args_;
static_assert(std::is_same<Char, char>::value ||
std::is_same<Char, wchar_t>::value,
"Unsupported code unit type.");
public:
using char_type = Char;
using parse_context_type = basic_format_parse_context<Char>;
using parse_context_type = parse_context<Char>;
template <typename T> using formatter_type = printf_formatter<T>;
enum { builtin_types = 1 };
/**
\rst
Constructs a ``printf_context`` object. References to the arguments are
stored in the context object so make sure they have appropriate lifetimes.
\endrst
*/
basic_printf_context(detail::buffer_appender<Char> out,
/// Constructs a `printf_context` object. References to the arguments are
/// stored in the context object so make sure they have appropriate lifetimes.
basic_printf_context(basic_appender<Char> out,
basic_format_args<basic_printf_context> args)
: out_(out), args_(args) {}
auto out() -> detail::buffer_appender<Char> { return out_; }
void advance_to(detail::buffer_appender<Char>) {}
auto out() -> basic_appender<Char> { return out_; }
void advance_to(basic_appender<Char>) {}
auto locale() -> detail::locale_ref { return {}; }
auto arg(int id) const -> basic_format_arg<basic_printf_context> {
return args_.get(id);
}
FMT_CONSTEXPR void on_error(const char* message) {
detail::error_handler().on_error(message);
}
};
namespace detail {
// Return the result via the out param to workaround gcc bug 77539.
template <bool IS_CONSTEXPR, typename T, typename Ptr = const T*>
FMT_CONSTEXPR auto find(Ptr first, Ptr last, T value, Ptr& out) -> bool {
for (out = first; out != last; ++out) {
if (*out == value) return true;
}
return false;
}
template <>
inline auto find<false, char>(const char* first, const char* last, char value,
const char*& out) -> bool {
out =
static_cast<const char*>(memchr(first, value, to_unsigned(last - first)));
return out != nullptr;
}
// Checks if a value fits in int - used to avoid warnings about comparing
// signed and unsigned integers.
template <bool IsSigned> struct int_checker {
template <typename T> static auto fits_in_int(T value) -> bool {
unsigned max = max_value<int>();
unsigned max = to_unsigned(max_value<int>());
return value <= max;
}
static auto fits_in_int(bool) -> bool { return true; }
inline static auto fits_in_int(bool) -> bool { return true; }
};
template <> struct int_checker<true> {
@ -69,20 +87,20 @@ template <> struct int_checker<true> {
return value >= (std::numeric_limits<int>::min)() &&
value <= max_value<int>();
}
static auto fits_in_int(int) -> bool { return true; }
inline static auto fits_in_int(int) -> bool { return true; }
};
struct printf_precision_handler {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
auto operator()(T value) -> int {
if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
throw_format_error("number is too big");
report_error("number is too big");
return (std::max)(static_cast<int>(value), 0);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
auto operator()(T) -> int {
throw_format_error("precision is not integer");
report_error("precision is not integer");
return 0;
}
};
@ -102,7 +120,9 @@ struct is_zero_int {
template <typename T> struct make_unsigned_or_bool : std::make_unsigned<T> {};
template <> struct make_unsigned_or_bool<bool> { using type = bool; };
template <> struct make_unsigned_or_bool<bool> {
using type = bool;
};
template <typename T, typename Context> class arg_converter {
private:
@ -125,25 +145,19 @@ template <typename T, typename Context> class arg_converter {
using target_type = conditional_t<std::is_same<T, void>::value, U, T>;
if (const_check(sizeof(target_type) <= sizeof(int))) {
// Extra casts are used to silence warnings.
if (is_signed) {
auto n = static_cast<int>(static_cast<target_type>(value));
arg_ = detail::make_arg<Context>(n);
} else {
using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
auto n = static_cast<unsigned>(static_cast<unsigned_type>(value));
arg_ = detail::make_arg<Context>(n);
}
using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
if (is_signed)
arg_ = static_cast<int>(static_cast<target_type>(value));
else
arg_ = static_cast<unsigned>(static_cast<unsigned_type>(value));
} else {
if (is_signed) {
// glibc's printf doesn't sign extend arguments of smaller types:
// std::printf("%lld", -42); // prints "4294967254"
// but we don't have to do the same because it's a UB.
auto n = static_cast<long long>(value);
arg_ = detail::make_arg<Context>(n);
} else {
auto n = static_cast<typename make_unsigned_or_bool<U>::type>(value);
arg_ = detail::make_arg<Context>(n);
}
// glibc's printf doesn't sign extend arguments of smaller types:
// std::printf("%lld", -42); // prints "4294967254"
// but we don't have to do the same because it's a UB.
if (is_signed)
arg_ = static_cast<long long>(value);
else
arg_ = static_cast<typename make_unsigned_or_bool<U>::type>(value);
}
}
@ -157,7 +171,7 @@ template <typename T, typename Context> class arg_converter {
// unsigned).
template <typename T, typename Context, typename Char>
void convert_arg(basic_format_arg<Context>& arg, Char type) {
visit_format_arg(arg_converter<T, Context>(arg, type), arg);
arg.visit(arg_converter<T, Context>(arg, type));
}
// Converts an integer argument to char for printf.
@ -170,8 +184,7 @@ template <typename Context> class char_converter {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
void operator()(T value) {
auto c = static_cast<typename Context::char_type>(value);
arg_ = detail::make_arg<Context>(c);
arg_ = static_cast<typename Context::char_type>(value);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
@ -187,28 +200,28 @@ template <typename Char> struct get_cstring {
// Checks if an argument is a valid printf width specifier and sets
// left alignment if it is negative.
template <typename Char> class printf_width_handler {
class printf_width_handler {
private:
format_specs<Char>& specs_;
format_specs& specs_;
public:
explicit printf_width_handler(format_specs<Char>& specs) : specs_(specs) {}
inline explicit printf_width_handler(format_specs& specs) : specs_(specs) {}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
auto operator()(T value) -> unsigned {
auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
if (detail::is_negative(value)) {
specs_.align = align::left;
specs_.set_align(align::left);
width = 0 - width;
}
unsigned int_max = max_value<int>();
if (width > int_max) throw_format_error("number is too big");
unsigned int_max = to_unsigned(max_value<int>());
if (width > int_max) report_error("number is too big");
return static_cast<unsigned>(width);
}
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
auto operator()(T) -> unsigned {
throw_format_error("width is not integer");
report_error("width is not integer");
return 0;
}
};
@ -216,12 +229,12 @@ template <typename Char> class printf_width_handler {
// Workaround for a bug with the XL compiler when initializing
// printf_arg_formatter's base class.
template <typename Char>
auto make_arg_formatter(buffer_appender<Char> iter, format_specs<Char>& s)
auto make_arg_formatter(basic_appender<Char> iter, format_specs& s)
-> arg_formatter<Char> {
return {iter, s, locale_ref()};
}
// The ``printf`` argument formatter.
// The `printf` argument formatter.
template <typename Char>
class printf_arg_formatter : public arg_formatter<Char> {
private:
@ -232,105 +245,96 @@ class printf_arg_formatter : public arg_formatter<Char> {
void write_null_pointer(bool is_string = false) {
auto s = this->specs;
s.type = presentation_type::none;
write_bytes(this->out, is_string ? "(null)" : "(nil)", s);
s.set_type(presentation_type::none);
write_bytes<Char>(this->out, is_string ? "(null)" : "(nil)", s);
}
template <typename T> void write(T value) {
detail::write<Char>(this->out, value, this->specs, this->locale);
}
public:
printf_arg_formatter(buffer_appender<Char> iter, format_specs<Char>& s,
printf_arg_formatter(basic_appender<Char> iter, format_specs& s,
context_type& ctx)
: base(make_arg_formatter(iter, s)), context_(ctx) {}
void operator()(monostate value) { base::operator()(value); }
void operator()(monostate value) { write(value); }
template <typename T, FMT_ENABLE_IF(detail::is_integral<T>::value)>
void operator()(T value) {
// MSVC2013 fails to compile separate overloads for bool and Char so use
// std::is_same instead.
if (!std::is_same<T, Char>::value) {
base::operator()(value);
write(value);
return;
}
format_specs<Char> fmt_specs = this->specs;
if (fmt_specs.type != presentation_type::none &&
fmt_specs.type != presentation_type::chr) {
format_specs s = this->specs;
if (s.type() != presentation_type::none &&
s.type() != presentation_type::chr) {
return (*this)(static_cast<int>(value));
}
fmt_specs.sign = sign::none;
fmt_specs.alt = false;
fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types.
s.set_sign(sign::none);
s.clear_alt();
s.set_fill(' '); // Ignore '0' flag for char types.
// align::numeric needs to be overwritten here since the '0' flag is
// ignored for non-numeric types
if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
fmt_specs.align = align::right;
write<Char>(this->out, static_cast<Char>(value), fmt_specs);
if (s.align() == align::none || s.align() == align::numeric)
s.set_align(align::right);
detail::write<Char>(this->out, static_cast<Char>(value), s);
}
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
void operator()(T value) {
base::operator()(value);
write(value);
}
/** Formats a null-terminated C string. */
void operator()(const char* value) {
if (value)
base::operator()(value);
write(value);
else
write_null_pointer(this->specs.type != presentation_type::pointer);
write_null_pointer(this->specs.type() != presentation_type::pointer);
}
/** Formats a null-terminated wide C string. */
void operator()(const wchar_t* value) {
if (value)
base::operator()(value);
write(value);
else
write_null_pointer(this->specs.type != presentation_type::pointer);
write_null_pointer(this->specs.type() != presentation_type::pointer);
}
void operator()(basic_string_view<Char> value) { base::operator()(value); }
void operator()(basic_string_view<Char> value) { write(value); }
/** Formats a pointer. */
void operator()(const void* value) {
if (value)
base::operator()(value);
write(value);
else
write_null_pointer();
}
/** Formats an argument of a custom (user-defined) type. */
void operator()(typename basic_format_arg<context_type>::handle handle) {
auto parse_ctx = basic_format_parse_context<Char>({});
auto parse_ctx = parse_context<Char>({});
handle.format(parse_ctx, context_);
}
};
template <typename Char>
void parse_flags(format_specs<Char>& specs, const Char*& it, const Char* end) {
void parse_flags(format_specs& specs, const Char*& it, const Char* end) {
for (; it != end; ++it) {
switch (*it) {
case '-':
specs.align = align::left;
break;
case '+':
specs.sign = sign::plus;
break;
case '0':
specs.fill[0] = '0';
break;
case '-': specs.set_align(align::left); break;
case '+': specs.set_sign(sign::plus); break;
case '0': specs.set_fill('0'); break;
case ' ':
if (specs.sign != sign::plus) specs.sign = sign::space;
if (specs.sign() != sign::plus) specs.set_sign(sign::space);
break;
case '#':
specs.alt = true;
break;
default:
return;
case '#': specs.set_alt(); break;
default: return;
}
}
}
template <typename Char, typename GetArg>
auto parse_header(const Char*& it, const Char* end, format_specs<Char>& specs,
auto parse_header(const Char*& it, const Char* end, format_specs& specs,
GetArg get_arg) -> int {
int arg_index = -1;
Char c = *it;
@ -342,11 +346,11 @@ auto parse_header(const Char*& it, const Char* end, format_specs<Char>& specs,
++it;
arg_index = value != -1 ? value : max_value<int>();
} else {
if (c == '0') specs.fill[0] = '0';
if (c == '0') specs.set_fill('0');
if (value != 0) {
// Nonzero value means that we parsed width and don't need to
// parse it or flags again, so return now.
if (value == -1) throw_format_error("number is too big");
if (value == -1) report_error("number is too big");
specs.width = value;
return arg_index;
}
@ -357,63 +361,47 @@ auto parse_header(const Char*& it, const Char* end, format_specs<Char>& specs,
if (it != end) {
if (*it >= '0' && *it <= '9') {
specs.width = parse_nonnegative_int(it, end, -1);
if (specs.width == -1) throw_format_error("number is too big");
if (specs.width == -1) report_error("number is too big");
} else if (*it == '*') {
++it;
specs.width = static_cast<int>(visit_format_arg(
detail::printf_width_handler<Char>(specs), get_arg(-1)));
specs.width = static_cast<int>(
get_arg(-1).visit(detail::printf_width_handler(specs)));
}
}
return arg_index;
}
inline auto parse_printf_presentation_type(char c, type t)
inline auto parse_printf_presentation_type(char c, type t, bool& upper)
-> presentation_type {
using pt = presentation_type;
constexpr auto integral_set = sint_set | uint_set | bool_set | char_set;
switch (c) {
case 'd':
return in(t, integral_set) ? pt::dec : pt::none;
case 'o':
return in(t, integral_set) ? pt::oct : pt::none;
case 'x':
return in(t, integral_set) ? pt::hex_lower : pt::none;
case 'X':
return in(t, integral_set) ? pt::hex_upper : pt::none;
case 'a':
return in(t, float_set) ? pt::hexfloat_lower : pt::none;
case 'A':
return in(t, float_set) ? pt::hexfloat_upper : pt::none;
case 'e':
return in(t, float_set) ? pt::exp_lower : pt::none;
case 'E':
return in(t, float_set) ? pt::exp_upper : pt::none;
case 'f':
return in(t, float_set) ? pt::fixed_lower : pt::none;
case 'F':
return in(t, float_set) ? pt::fixed_upper : pt::none;
case 'g':
return in(t, float_set) ? pt::general_lower : pt::none;
case 'G':
return in(t, float_set) ? pt::general_upper : pt::none;
case 'c':
return in(t, integral_set) ? pt::chr : pt::none;
case 's':
return in(t, string_set | cstring_set) ? pt::string : pt::none;
case 'p':
return in(t, pointer_set | cstring_set) ? pt::pointer : pt::none;
default:
return pt::none;
case 'd': return in(t, integral_set) ? pt::dec : pt::none;
case 'o': return in(t, integral_set) ? pt::oct : pt::none;
case 'X': upper = true; FMT_FALLTHROUGH;
case 'x': return in(t, integral_set) ? pt::hex : pt::none;
case 'E': upper = true; FMT_FALLTHROUGH;
case 'e': return in(t, float_set) ? pt::exp : pt::none;
case 'F': upper = true; FMT_FALLTHROUGH;
case 'f': return in(t, float_set) ? pt::fixed : pt::none;
case 'G': upper = true; FMT_FALLTHROUGH;
case 'g': return in(t, float_set) ? pt::general : pt::none;
case 'A': upper = true; FMT_FALLTHROUGH;
case 'a': return in(t, float_set) ? pt::hexfloat : pt::none;
case 'c': return in(t, integral_set) ? pt::chr : pt::none;
case 's': return in(t, string_set | cstring_set) ? pt::string : pt::none;
case 'p': return in(t, pointer_set | cstring_set) ? pt::pointer : pt::none;
default: return pt::none;
}
}
template <typename Char, typename Context>
void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
basic_format_args<Context> args) {
using iterator = buffer_appender<Char>;
using iterator = basic_appender<Char>;
auto out = iterator(buf);
auto context = basic_printf_context<Char>(out, args);
auto parse_ctx = basic_format_parse_context<Char>(format);
auto parse_ctx = parse_context<Char>(format);
// Returns the argument with specified index or, if arg_index is -1, the next
// argument.
@ -441,12 +429,12 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
}
write(out, basic_string_view<Char>(start, to_unsigned(it - 1 - start)));
auto specs = format_specs<Char>();
specs.align = align::right;
auto specs = format_specs();
specs.set_align(align::right);
// Parse argument index, flags and width.
int arg_index = parse_header(it, end, specs, get_arg);
if (arg_index == 0) throw_format_error("argument not found");
if (arg_index == 0) report_error("argument not found");
// Parse precision.
if (it != end && *it == '.') {
@ -456,8 +444,8 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
specs.precision = parse_nonnegative_int(it, end, 0);
} else if (c == '*') {
++it;
specs.precision = static_cast<int>(
visit_format_arg(printf_precision_handler(), get_arg(-1)));
specs.precision =
static_cast<int>(get_arg(-1).visit(printf_precision_handler()));
} else {
specs.precision = 0;
}
@ -466,25 +454,26 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
auto arg = get_arg(arg_index);
// For d, i, o, u, x, and X conversion specifiers, if a precision is
// specified, the '0' flag is ignored
if (specs.precision >= 0 && arg.is_integral()) {
if (specs.precision >= 0 && is_integral_type(arg.type())) {
// Ignore '0' for non-numeric types or if '-' present.
specs.fill[0] = ' ';
specs.set_fill(' ');
}
if (specs.precision >= 0 && arg.type() == type::cstring_type) {
auto str = visit_format_arg(get_cstring<Char>(), arg);
auto str = arg.visit(get_cstring<Char>());
auto str_end = str + specs.precision;
auto nul = std::find(str, str_end, Char());
auto sv = basic_string_view<Char>(
str, to_unsigned(nul != str_end ? nul - str : specs.precision));
arg = make_arg<basic_printf_context<Char>>(sv);
arg = sv;
}
if (specs.alt && visit_format_arg(is_zero_int(), arg)) specs.alt = false;
if (specs.fill[0] == '0') {
if (arg.is_arithmetic() && specs.align != align::left)
specs.align = align::numeric;
else
specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-'
// flag is also present.
if (specs.alt() && arg.visit(is_zero_int())) specs.clear_alt();
if (specs.fill_unit<Char>() == '0') {
if (is_arithmetic_type(arg.type()) && specs.align() != align::left) {
specs.set_align(align::numeric);
} else {
// Ignore '0' flag for non-numeric types or if '-' flag is also present.
specs.set_fill(' ');
}
}
// Parse length and convert the argument to the required type.
@ -509,47 +498,39 @@ void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
convert_arg<long>(arg, t);
}
break;
case 'j':
convert_arg<intmax_t>(arg, t);
break;
case 'z':
convert_arg<size_t>(arg, t);
break;
case 't':
convert_arg<std::ptrdiff_t>(arg, t);
break;
case 'j': convert_arg<intmax_t>(arg, t); break;
case 'z': convert_arg<size_t>(arg, t); break;
case 't': convert_arg<std::ptrdiff_t>(arg, t); break;
case 'L':
// printf produces garbage when 'L' is omitted for long double, no
// need to do the same.
break;
default:
--it;
convert_arg<void>(arg, c);
default: --it; convert_arg<void>(arg, c);
}
// Parse type.
if (it == end) throw_format_error("invalid format string");
if (it == end) report_error("invalid format string");
char type = static_cast<char>(*it++);
if (arg.is_integral()) {
if (is_integral_type(arg.type())) {
// Normalize type.
switch (type) {
case 'i':
case 'u':
type = 'd';
break;
case 'u': type = 'd'; break;
case 'c':
visit_format_arg(char_converter<basic_printf_context<Char>>(arg), arg);
arg.visit(char_converter<basic_printf_context<Char>>(arg));
break;
}
}
specs.type = parse_printf_presentation_type(type, arg.type());
if (specs.type == presentation_type::none)
throw_format_error("invalid format specifier");
bool upper = false;
specs.set_type(parse_printf_presentation_type(type, arg.type(), upper));
if (specs.type() == presentation_type::none)
report_error("invalid format specifier");
if (upper) specs.set_upper();
start = it;
// Format argument.
visit_format_arg(printf_arg_formatter<Char>(out, specs, context), arg);
arg.visit(printf_arg_formatter<Char>(out, specs, context));
}
write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
}
@ -561,56 +542,44 @@ using wprintf_context = basic_printf_context<wchar_t>;
using printf_args = basic_format_args<printf_context>;
using wprintf_args = basic_format_args<wprintf_context>;
/**
\rst
Constructs an `~fmt::format_arg_store` object that contains references to
arguments and can be implicitly converted to `~fmt::printf_args`.
\endrst
*/
template <typename... T>
inline auto make_printf_args(const T&... args)
-> format_arg_store<printf_context, T...> {
return {args...};
/// Constructs an `format_arg_store` object that contains references to
/// arguments and can be implicitly converted to `printf_args`.
template <typename Char = char, typename... T>
inline auto make_printf_args(T&... args)
-> decltype(fmt::make_format_args<basic_printf_context<Char>>(args...)) {
return fmt::make_format_args<basic_printf_context<Char>>(args...);
}
// DEPRECATED!
template <typename... T>
inline auto make_wprintf_args(const T&... args)
-> format_arg_store<wprintf_context, T...> {
return {args...};
}
template <typename Char> struct vprintf_args {
using type = basic_format_args<basic_printf_context<Char>>;
};
template <typename Char>
inline auto vsprintf(
basic_string_view<Char> fmt,
basic_format_args<basic_printf_context<type_identity_t<Char>>> args)
inline auto vsprintf(basic_string_view<Char> fmt,
typename vprintf_args<Char>::type args)
-> std::basic_string<Char> {
auto buf = basic_memory_buffer<Char>();
detail::vprintf(buf, fmt, args);
return to_string(buf);
return {buf.data(), buf.size()};
}
/**
\rst
Formats arguments and returns the result as a string.
**Example**::
std::string message = fmt::sprintf("The answer is %d", 42);
\endrst
*/
template <typename S, typename... T,
typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
* Formats `args` according to specifications in `fmt` and returns the result
* as as string.
*
* **Example**:
*
* std::string message = fmt::sprintf("The answer is %d", 42);
*/
template <typename S, typename... T, typename Char = detail::char_t<S>>
inline auto sprintf(const S& fmt, const T&... args) -> std::basic_string<Char> {
return vsprintf(detail::to_string_view(fmt),
fmt::make_format_args<basic_printf_context<Char>>(args...));
}
template <typename Char>
inline auto vfprintf(
std::FILE* f, basic_string_view<Char> fmt,
basic_format_args<basic_printf_context<type_identity_t<Char>>> args)
-> int {
inline auto vfprintf(std::FILE* f, basic_string_view<Char> fmt,
typename vprintf_args<Char>::type args) -> int {
auto buf = basic_memory_buffer<Char>();
detail::vprintf(buf, fmt, args);
size_t size = buf.size();
@ -620,36 +589,33 @@ inline auto vfprintf(
}
/**
\rst
Prints formatted data to the file *f*.
**Example**::
fmt::fprintf(stderr, "Don't %s!", "panic");
\endrst
* Formats `args` according to specifications in `fmt` and writes the output
* to `f`.
*
* **Example**:
*
* fmt::fprintf(stderr, "Don't %s!", "panic");
*/
template <typename S, typename... T, typename Char = char_t<S>>
template <typename S, typename... T, typename Char = detail::char_t<S>>
inline auto fprintf(std::FILE* f, const S& fmt, const T&... args) -> int {
return vfprintf(f, detail::to_string_view(fmt),
fmt::make_format_args<basic_printf_context<Char>>(args...));
make_printf_args<Char>(args...));
}
template <typename Char>
FMT_DEPRECATED inline auto vprintf(
basic_string_view<Char> fmt,
basic_format_args<basic_printf_context<type_identity_t<Char>>> args)
FMT_DEPRECATED inline auto vprintf(basic_string_view<Char> fmt,
typename vprintf_args<Char>::type args)
-> int {
return vfprintf(stdout, fmt, args);
}
/**
\rst
Prints formatted data to ``stdout``.
**Example**::
fmt::printf("Elapsed time: %.2f seconds", 1.23);
\endrst
* Formats `args` according to specifications in `fmt` and writes the output
* to `stdout`.
*
* **Example**:
*
* fmt::printf("Elapsed time: %.2f seconds", 1.23);
*/
template <typename... T>
inline auto printf(string_view fmt, const T&... args) -> int {
@ -658,7 +624,7 @@ inline auto printf(string_view fmt, const T&... args) -> int {
template <typename... T>
FMT_DEPRECATED inline auto printf(basic_string_view<wchar_t> fmt,
const T&... args) -> int {
return vfprintf(stdout, fmt, make_wprintf_args(args...));
return vfprintf(stdout, fmt, make_printf_args<wchar_t>(args...));
}
FMT_END_EXPORT

641
thirdparty/fmt/include/fmt/ranges.h vendored
View file

@ -1,78 +1,38 @@
// Formatting library for C++ - experimental range support
// Formatting library for C++ - range and tuple support
//
// Copyright (c) 2012 - present, Victor Zverovich
// Copyright (c) 2012 - present, Victor Zverovich and {fmt} contributors
// All rights reserved.
//
// For the license information refer to format.h.
//
// Copyright (c) 2018 - present, Remotion (Igor Schulz)
// All Rights Reserved
// {fmt} support for ranges, containers and types tuple interface.
#ifndef FMT_RANGES_H_
#define FMT_RANGES_H_
#include <initializer_list>
#include <tuple>
#include <type_traits>
#ifndef FMT_MODULE
# include <initializer_list>
# include <iterator>
# include <string>
# include <tuple>
# include <type_traits>
# include <utility>
#endif
#include "format.h"
FMT_BEGIN_NAMESPACE
FMT_EXPORT
enum class range_format { disabled, map, set, sequence, string, debug_string };
namespace detail {
template <typename Range, typename OutputIt>
auto copy(const Range& range, OutputIt out) -> OutputIt {
for (auto it = range.begin(), end = range.end(); it != end; ++it)
*out++ = *it;
return out;
}
template <typename OutputIt>
auto copy(const char* str, OutputIt out) -> OutputIt {
while (*str) *out++ = *str++;
return out;
}
template <typename OutputIt> auto copy(char ch, OutputIt out) -> OutputIt {
*out++ = ch;
return out;
}
template <typename OutputIt> auto copy(wchar_t ch, OutputIt out) -> OutputIt {
*out++ = ch;
return out;
}
// Returns true if T has a std::string-like interface, like std::string_view.
template <typename T> class is_std_string_like {
template <typename U>
static auto check(U* p)
-> decltype((void)p->find('a'), p->length(), (void)p->data(), int());
template <typename> static void check(...);
public:
static constexpr const bool value =
is_string<T>::value ||
std::is_convertible<T, std_string_view<char>>::value ||
!std::is_void<decltype(check<T>(nullptr))>::value;
};
template <typename Char>
struct is_std_string_like<fmt::basic_string_view<Char>> : std::true_type {};
template <typename T> class is_map {
template <typename U> static auto check(U*) -> typename U::mapped_type;
template <typename> static void check(...);
public:
#ifdef FMT_FORMAT_MAP_AS_LIST // DEPRECATED!
static constexpr const bool value = false;
#else
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value;
#endif
};
template <typename T> class is_set {
@ -80,26 +40,10 @@ template <typename T> class is_set {
template <typename> static void check(...);
public:
#ifdef FMT_FORMAT_SET_AS_LIST // DEPRECATED!
static constexpr const bool value = false;
#else
static constexpr const bool value =
!std::is_void<decltype(check<T>(nullptr))>::value && !is_map<T>::value;
#endif
};
template <typename... Ts> struct conditional_helper {};
template <typename T, typename _ = void> struct is_range_ : std::false_type {};
#if !FMT_MSC_VERSION || FMT_MSC_VERSION > 1800
# define FMT_DECLTYPE_RETURN(val) \
->decltype(val) { return val; } \
static_assert( \
true, "") // This makes it so that a semicolon is required after the
// macro, which helps clang-format handle the formatting.
// C array overload
template <typename T, std::size_t N>
auto range_begin(const T (&arr)[N]) -> const T* {
@ -114,17 +58,21 @@ template <typename T, typename Enable = void>
struct has_member_fn_begin_end_t : std::false_type {};
template <typename T>
struct has_member_fn_begin_end_t<T, void_t<decltype(std::declval<T>().begin()),
struct has_member_fn_begin_end_t<T, void_t<decltype(*std::declval<T>().begin()),
decltype(std::declval<T>().end())>>
: std::true_type {};
// Member function overload
// Member function overloads.
template <typename T>
auto range_begin(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).begin());
auto range_begin(T&& rng) -> decltype(static_cast<T&&>(rng).begin()) {
return static_cast<T&&>(rng).begin();
}
template <typename T>
auto range_end(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).end());
auto range_end(T&& rng) -> decltype(static_cast<T&&>(rng).end()) {
return static_cast<T&&>(rng).end();
}
// ADL overload. Only participates in overload resolution if member functions
// ADL overloads. Only participate in overload resolution if member functions
// are not found.
template <typename T>
auto range_begin(T&& rng)
@ -145,31 +93,30 @@ struct has_mutable_begin_end : std::false_type {};
template <typename T>
struct has_const_begin_end<
T,
void_t<
decltype(detail::range_begin(std::declval<const remove_cvref_t<T>&>())),
decltype(detail::range_end(std::declval<const remove_cvref_t<T>&>()))>>
T, void_t<decltype(*detail::range_begin(
std::declval<const remove_cvref_t<T>&>())),
decltype(detail::range_end(
std::declval<const remove_cvref_t<T>&>()))>>
: std::true_type {};
template <typename T>
struct has_mutable_begin_end<
T, void_t<decltype(detail::range_begin(std::declval<T>())),
decltype(detail::range_end(std::declval<T>())),
T, void_t<decltype(*detail::range_begin(std::declval<T&>())),
decltype(detail::range_end(std::declval<T&>())),
// the extra int here is because older versions of MSVC don't
// SFINAE properly unless there are distinct types
int>> : std::true_type {};
template <typename T, typename _ = void> struct is_range_ : std::false_type {};
template <typename T>
struct is_range_<T, void>
: std::integral_constant<bool, (has_const_begin_end<T>::value ||
has_mutable_begin_end<T>::value)> {};
# undef FMT_DECLTYPE_RETURN
#endif
// tuple_size and tuple_element check.
template <typename T> class is_tuple_like_ {
template <typename U>
static auto check(U* p) -> decltype(std::tuple_size<U>::value, int());
template <typename U, typename V = typename std::remove_cv<U>::type>
static auto check(U* p) -> decltype(std::tuple_size<V>::value, 0);
template <typename> static void check(...);
public:
@ -187,7 +134,7 @@ template <size_t N> using make_index_sequence = std::make_index_sequence<N>;
template <typename T, T... N> struct integer_sequence {
using value_type = T;
static FMT_CONSTEXPR size_t size() { return sizeof...(N); }
static FMT_CONSTEXPR auto size() -> size_t { return sizeof...(N); }
};
template <size_t... N> using index_sequence = integer_sequence<size_t, N...>;
@ -210,16 +157,17 @@ class is_tuple_formattable_ {
static constexpr const bool value = false;
};
template <typename T, typename C> class is_tuple_formattable_<T, C, true> {
template <std::size_t... Is>
static std::true_type check2(index_sequence<Is...>,
integer_sequence<bool, (Is == Is)...>);
static std::false_type check2(...);
template <std::size_t... Is>
static decltype(check2(
template <size_t... Is>
static auto all_true(index_sequence<Is...>,
integer_sequence<bool, (Is >= 0)...>) -> std::true_type;
static auto all_true(...) -> std::false_type;
template <size_t... Is>
static auto check(index_sequence<Is...>) -> decltype(all_true(
index_sequence<Is...>{},
integer_sequence<
bool, (is_formattable<typename std::tuple_element<Is, T>::type,
C>::value)...>{})) check(index_sequence<Is...>);
integer_sequence<bool,
(is_formattable<typename std::tuple_element<Is, T>::type,
C>::value)...>{}));
public:
static constexpr const bool value =
@ -296,21 +244,32 @@ FMT_CONSTEXPR auto maybe_set_debug_format(Formatter& f, bool set)
template <typename Formatter>
FMT_CONSTEXPR void maybe_set_debug_format(Formatter&, ...) {}
template <typename T>
struct range_format_kind_
: std::integral_constant<range_format,
std::is_same<uncvref_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence> {};
template <range_format K>
using range_format_constant = std::integral_constant<range_format, K>;
// These are not generic lambdas for compatibility with C++11.
template <typename ParseContext> struct parse_empty_specs {
template <typename Char> struct parse_empty_specs {
template <typename Formatter> FMT_CONSTEXPR void operator()(Formatter& f) {
f.parse(ctx);
detail::maybe_set_debug_format(f, true);
}
ParseContext& ctx;
parse_context<Char>& ctx;
};
template <typename FormatContext> struct format_tuple_element {
using char_type = typename FormatContext::char_type;
template <typename T>
void operator()(const formatter<T, char_type>& f, const T& v) {
if (i > 0)
ctx.advance_to(detail::copy_str<char_type>(separator, ctx.out()));
if (i > 0) ctx.advance_to(detail::copy<char_type>(separator, ctx.out()));
ctx.advance_to(f.format(v, ctx));
++i;
}
@ -359,68 +318,56 @@ struct formatter<Tuple, Char,
closing_bracket_ = close;
}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
auto it = ctx.begin();
if (it != ctx.end() && *it != '}')
FMT_THROW(format_error("invalid format specifier"));
detail::for_each(formatters_, detail::parse_empty_specs<ParseContext>{ctx});
auto end = ctx.end();
if (it != end && detail::to_ascii(*it) == 'n') {
++it;
set_brackets({}, {});
set_separator({});
}
if (it != end && *it != '}') report_error("invalid format specifier");
ctx.advance_to(it);
detail::for_each(formatters_, detail::parse_empty_specs<Char>{ctx});
return it;
}
template <typename FormatContext>
auto format(const Tuple& value, FormatContext& ctx) const
-> decltype(ctx.out()) {
ctx.advance_to(detail::copy_str<Char>(opening_bracket_, ctx.out()));
ctx.advance_to(detail::copy<Char>(opening_bracket_, ctx.out()));
detail::for_each2(
formatters_, value,
detail::format_tuple_element<FormatContext>{0, ctx, separator_});
return detail::copy_str<Char>(closing_bracket_, ctx.out());
return detail::copy<Char>(closing_bracket_, ctx.out());
}
};
template <typename T, typename Char> struct is_range {
static constexpr const bool value =
detail::is_range_<T>::value && !detail::is_std_string_like<T>::value &&
!std::is_convertible<T, std::basic_string<Char>>::value &&
!std::is_convertible<T, detail::std_string_view<Char>>::value;
detail::is_range_<T>::value && !detail::has_to_string_view<T>::value;
};
namespace detail {
template <typename Context> struct range_mapper {
using mapper = arg_mapper<Context>;
template <typename T,
FMT_ENABLE_IF(has_formatter<remove_cvref_t<T>, Context>::value)>
static auto map(T&& value) -> T&& {
return static_cast<T&&>(value);
}
template <typename T,
FMT_ENABLE_IF(!has_formatter<remove_cvref_t<T>, Context>::value)>
static auto map(T&& value)
-> decltype(mapper().map(static_cast<T&&>(value))) {
return mapper().map(static_cast<T&&>(value));
}
};
template <typename Char, typename Element>
using range_formatter_type =
formatter<remove_cvref_t<decltype(range_mapper<buffer_context<Char>>{}.map(
std::declval<Element>()))>,
Char>;
using range_formatter_type = formatter<remove_cvref_t<Element>, Char>;
template <typename R>
using maybe_const_range =
conditional_t<has_const_begin_end<R>::value, const R, R>;
// Workaround a bug in MSVC 2015 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
template <typename R, typename Char>
struct is_formattable_delayed
: is_formattable<uncvref_type<maybe_const_range<R>>, Char> {};
#endif
} // namespace detail
template <typename...> struct conjunction : std::true_type {};
template <typename P> struct conjunction<P> : P {};
template <typename P1, typename... Pn>
struct conjunction<P1, Pn...>
: conditional_t<bool(P1::value), conjunction<Pn...>, P1> {};
template <typename T, typename Char, typename Enable = void>
struct range_formatter;
@ -436,6 +383,24 @@ struct range_formatter<
detail::string_literal<Char, '['>{};
basic_string_view<Char> closing_bracket_ =
detail::string_literal<Char, ']'>{};
bool is_debug = false;
template <typename Output, typename It, typename Sentinel, typename U = T,
FMT_ENABLE_IF(std::is_same<U, Char>::value)>
auto write_debug_string(Output& out, It it, Sentinel end) const -> Output {
auto buf = basic_memory_buffer<Char>();
for (; it != end; ++it) buf.push_back(*it);
auto specs = format_specs();
specs.set_type(presentation_type::debug);
return detail::write<Char>(
out, basic_string_view<Char>(buf.data(), buf.size()), specs);
}
template <typename Output, typename It, typename Sentinel, typename U = T,
FMT_ENABLE_IF(!std::is_same<U, Char>::value)>
auto write_debug_string(Output& out, It, Sentinel) const -> Output {
return out;
}
public:
FMT_CONSTEXPR range_formatter() {}
@ -454,21 +419,40 @@ struct range_formatter<
closing_bracket_ = close;
}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
auto it = ctx.begin();
auto end = ctx.end();
detail::maybe_set_debug_format(underlying_, true);
if (it == end) return underlying_.parse(ctx);
if (it != end && *it == 'n') {
switch (detail::to_ascii(*it)) {
case 'n':
set_brackets({}, {});
++it;
break;
case '?':
is_debug = true;
set_brackets({}, {});
++it;
if (it == end || *it != 's') report_error("invalid format specifier");
FMT_FALLTHROUGH;
case 's':
if (!std::is_same<T, Char>::value)
report_error("invalid format specifier");
if (!is_debug) {
set_brackets(detail::string_literal<Char, '"'>{},
detail::string_literal<Char, '"'>{});
set_separator({});
detail::maybe_set_debug_format(underlying_, false);
}
++it;
return it;
}
if (it != end && *it != '}') {
if (*it != ':') FMT_THROW(format_error("invalid format specifier"));
if (*it != ':') report_error("invalid format specifier");
detail::maybe_set_debug_format(underlying_, false);
++it;
} else {
detail::maybe_set_debug_format(underlying_, true);
}
ctx.advance_to(it);
@ -477,79 +461,26 @@ struct range_formatter<
template <typename R, typename FormatContext>
auto format(R&& range, FormatContext& ctx) const -> decltype(ctx.out()) {
detail::range_mapper<buffer_context<Char>> mapper;
auto out = ctx.out();
out = detail::copy_str<Char>(opening_bracket_, out);
int i = 0;
auto it = detail::range_begin(range);
auto end = detail::range_end(range);
if (is_debug) return write_debug_string(out, std::move(it), end);
out = detail::copy<Char>(opening_bracket_, out);
int i = 0;
for (; it != end; ++it) {
if (i > 0) out = detail::copy_str<Char>(separator_, out);
if (i > 0) out = detail::copy<Char>(separator_, out);
ctx.advance_to(out);
out = underlying_.format(mapper.map(*it), ctx);
auto&& item = *it; // Need an lvalue
out = underlying_.format(item, ctx);
++i;
}
out = detail::copy_str<Char>(closing_bracket_, out);
out = detail::copy<Char>(closing_bracket_, out);
return out;
}
};
enum class range_format { disabled, map, set, sequence, string, debug_string };
namespace detail {
template <typename T>
struct range_format_kind_
: std::integral_constant<range_format,
std::is_same<uncvref_type<T>, T>::value
? range_format::disabled
: is_map<T>::value ? range_format::map
: is_set<T>::value ? range_format::set
: range_format::sequence> {};
template <range_format K, typename R, typename Char, typename Enable = void>
struct range_default_formatter;
template <range_format K>
using range_format_constant = std::integral_constant<range_format, K>;
template <range_format K, typename R, typename Char>
struct range_default_formatter<
K, R, Char,
enable_if_t<(K == range_format::sequence || K == range_format::map ||
K == range_format::set)>> {
using range_type = detail::maybe_const_range<R>;
range_formatter<detail::uncvref_type<range_type>, Char> underlying_;
FMT_CONSTEXPR range_default_formatter() { init(range_format_constant<K>()); }
FMT_CONSTEXPR void init(range_format_constant<range_format::set>) {
underlying_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
}
FMT_CONSTEXPR void init(range_format_constant<range_format::map>) {
underlying_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
underlying_.underlying().set_brackets({}, {});
underlying_.underlying().set_separator(
detail::string_literal<Char, ':', ' '>{});
}
FMT_CONSTEXPR void init(range_format_constant<range_format::sequence>) {}
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(range_type& range, FormatContext& ctx) const
-> decltype(ctx.out()) {
return underlying_.format(range, ctx);
}
};
} // namespace detail
FMT_EXPORT
template <typename T, typename Char, typename Enable = void>
struct range_format_kind
: conditional_t<
@ -559,23 +490,189 @@ struct range_format_kind
template <typename R, typename Char>
struct formatter<
R, Char,
enable_if_t<conjunction<bool_constant<range_format_kind<R, Char>::value !=
range_format::disabled>
// Workaround a bug in MSVC 2015 and earlier.
#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1910
,
detail::is_formattable_delayed<R, Char>
#endif
>::value>>
: detail::range_default_formatter<range_format_kind<R, Char>::value, R,
Char> {
enable_if_t<conjunction<
bool_constant<
range_format_kind<R, Char>::value != range_format::disabled &&
range_format_kind<R, Char>::value != range_format::map &&
range_format_kind<R, Char>::value != range_format::string &&
range_format_kind<R, Char>::value != range_format::debug_string>,
detail::is_formattable_delayed<R, Char>>::value>> {
private:
using range_type = detail::maybe_const_range<R>;
range_formatter<detail::uncvref_type<range_type>, Char> range_formatter_;
public:
using nonlocking = void;
FMT_CONSTEXPR formatter() {
if (detail::const_check(range_format_kind<R, Char>::value !=
range_format::set))
return;
range_formatter_.set_brackets(detail::string_literal<Char, '{'>{},
detail::string_literal<Char, '}'>{});
}
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return range_formatter_.parse(ctx);
}
template <typename FormatContext>
auto format(range_type& range, FormatContext& ctx) const
-> decltype(ctx.out()) {
return range_formatter_.format(range, ctx);
}
};
template <typename Char, typename... T> struct tuple_join_view : detail::view {
const std::tuple<T...>& tuple;
// A map formatter.
template <typename R, typename Char>
struct formatter<
R, Char,
enable_if_t<range_format_kind<R, Char>::value == range_format::map>> {
private:
using map_type = detail::maybe_const_range<R>;
using element_type = detail::uncvref_type<map_type>;
decltype(detail::tuple::get_formatters<element_type, Char>(
detail::tuple_index_sequence<element_type>())) formatters_;
bool no_delimiters_ = false;
public:
FMT_CONSTEXPR formatter() {}
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
auto it = ctx.begin();
auto end = ctx.end();
if (it != end) {
if (detail::to_ascii(*it) == 'n') {
no_delimiters_ = true;
++it;
}
if (it != end && *it != '}') {
if (*it != ':') report_error("invalid format specifier");
++it;
}
ctx.advance_to(it);
}
detail::for_each(formatters_, detail::parse_empty_specs<Char>{ctx});
return it;
}
template <typename FormatContext>
auto format(map_type& map, FormatContext& ctx) const -> decltype(ctx.out()) {
auto out = ctx.out();
basic_string_view<Char> open = detail::string_literal<Char, '{'>{};
if (!no_delimiters_) out = detail::copy<Char>(open, out);
int i = 0;
basic_string_view<Char> sep = detail::string_literal<Char, ',', ' '>{};
for (auto&& value : map) {
if (i > 0) out = detail::copy<Char>(sep, out);
ctx.advance_to(out);
detail::for_each2(formatters_, value,
detail::format_tuple_element<FormatContext>{
0, ctx, detail::string_literal<Char, ':', ' '>{}});
++i;
}
basic_string_view<Char> close = detail::string_literal<Char, '}'>{};
if (!no_delimiters_) out = detail::copy<Char>(close, out);
return out;
}
};
// A (debug_)string formatter.
template <typename R, typename Char>
struct formatter<
R, Char,
enable_if_t<range_format_kind<R, Char>::value == range_format::string ||
range_format_kind<R, Char>::value ==
range_format::debug_string>> {
private:
using range_type = detail::maybe_const_range<R>;
using string_type =
conditional_t<std::is_constructible<
detail::std_string_view<Char>,
decltype(detail::range_begin(std::declval<R>())),
decltype(detail::range_end(std::declval<R>()))>::value,
detail::std_string_view<Char>, std::basic_string<Char>>;
formatter<string_type, Char> underlying_;
public:
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(range_type& range, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
if (detail::const_check(range_format_kind<R, Char>::value ==
range_format::debug_string))
*out++ = '"';
out = underlying_.format(
string_type{detail::range_begin(range), detail::range_end(range)}, ctx);
if (detail::const_check(range_format_kind<R, Char>::value ==
range_format::debug_string))
*out++ = '"';
return out;
}
};
template <typename It, typename Sentinel, typename Char = char>
struct join_view : detail::view {
It begin;
Sentinel end;
basic_string_view<Char> sep;
tuple_join_view(const std::tuple<T...>& t, basic_string_view<Char> s)
join_view(It b, Sentinel e, basic_string_view<Char> s)
: begin(std::move(b)), end(e), sep(s) {}
};
template <typename It, typename Sentinel, typename Char>
struct formatter<join_view<It, Sentinel, Char>, Char> {
private:
using value_type =
#ifdef __cpp_lib_ranges
std::iter_value_t<It>;
#else
typename std::iterator_traits<It>::value_type;
#endif
formatter<remove_cvref_t<value_type>, Char> value_formatter_;
using view = conditional_t<std::is_copy_constructible<It>::value,
const join_view<It, Sentinel, Char>,
join_view<It, Sentinel, Char>>;
public:
using nonlocking = void;
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return value_formatter_.parse(ctx);
}
template <typename FormatContext>
auto format(view& value, FormatContext& ctx) const -> decltype(ctx.out()) {
using iter =
conditional_t<std::is_copy_constructible<view>::value, It, It&>;
iter it = value.begin;
auto out = ctx.out();
if (it == value.end) return out;
out = value_formatter_.format(*it, ctx);
++it;
while (it != value.end) {
out = detail::copy<Char>(value.sep.begin(), value.sep.end(), out);
ctx.advance_to(out);
out = value_formatter_.format(*it, ctx);
++it;
}
return out;
}
};
template <typename Char, typename Tuple> struct tuple_join_view : detail::view {
const Tuple& tuple;
basic_string_view<Char> sep;
tuple_join_view(const Tuple& t, basic_string_view<Char> s)
: tuple(t), sep{s} {}
};
@ -586,65 +683,64 @@ template <typename Char, typename... T> struct tuple_join_view : detail::view {
# define FMT_TUPLE_JOIN_SPECIFIERS 0
#endif
template <typename Char, typename... T>
struct formatter<tuple_join_view<Char, T...>, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return do_parse(ctx, std::integral_constant<size_t, sizeof...(T)>());
template <typename Char, typename Tuple>
struct formatter<tuple_join_view<Char, Tuple>, Char,
enable_if_t<is_tuple_like<Tuple>::value>> {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return do_parse(ctx, std::tuple_size<Tuple>());
}
template <typename FormatContext>
auto format(const tuple_join_view<Char, T...>& value,
auto format(const tuple_join_view<Char, Tuple>& value,
FormatContext& ctx) const -> typename FormatContext::iterator {
return do_format(value, ctx,
std::integral_constant<size_t, sizeof...(T)>());
return do_format(value, ctx, std::tuple_size<Tuple>());
}
private:
std::tuple<formatter<typename std::decay<T>::type, Char>...> formatters_;
decltype(detail::tuple::get_formatters<Tuple, Char>(
detail::tuple_index_sequence<Tuple>())) formatters_;
template <typename ParseContext>
FMT_CONSTEXPR auto do_parse(ParseContext& ctx,
FMT_CONSTEXPR auto do_parse(parse_context<Char>& ctx,
std::integral_constant<size_t, 0>)
-> decltype(ctx.begin()) {
-> const Char* {
return ctx.begin();
}
template <typename ParseContext, size_t N>
FMT_CONSTEXPR auto do_parse(ParseContext& ctx,
template <size_t N>
FMT_CONSTEXPR auto do_parse(parse_context<Char>& ctx,
std::integral_constant<size_t, N>)
-> decltype(ctx.begin()) {
-> const Char* {
auto end = ctx.begin();
#if FMT_TUPLE_JOIN_SPECIFIERS
end = std::get<sizeof...(T) - N>(formatters_).parse(ctx);
end = std::get<std::tuple_size<Tuple>::value - N>(formatters_).parse(ctx);
if (N > 1) {
auto end1 = do_parse(ctx, std::integral_constant<size_t, N - 1>());
if (end != end1)
FMT_THROW(format_error("incompatible format specs for tuple elements"));
report_error("incompatible format specs for tuple elements");
}
#endif
return end;
}
template <typename FormatContext>
auto do_format(const tuple_join_view<Char, T...>&, FormatContext& ctx,
auto do_format(const tuple_join_view<Char, Tuple>&, FormatContext& ctx,
std::integral_constant<size_t, 0>) const ->
typename FormatContext::iterator {
return ctx.out();
}
template <typename FormatContext, size_t N>
auto do_format(const tuple_join_view<Char, T...>& value, FormatContext& ctx,
auto do_format(const tuple_join_view<Char, Tuple>& value, FormatContext& ctx,
std::integral_constant<size_t, N>) const ->
typename FormatContext::iterator {
auto out = std::get<sizeof...(T) - N>(formatters_)
.format(std::get<sizeof...(T) - N>(value.tuple), ctx);
if (N > 1) {
out = std::copy(value.sep.begin(), value.sep.end(), out);
ctx.advance_to(out);
return do_format(value, ctx, std::integral_constant<size_t, N - 1>());
}
return out;
using std::get;
auto out =
std::get<std::tuple_size<Tuple>::value - N>(formatters_)
.format(get<std::tuple_size<Tuple>::value - N>(value.tuple), ctx);
if (N <= 1) return out;
out = detail::copy<Char>(value.sep, out);
ctx.advance_to(out);
return do_format(value, ctx, std::integral_constant<size_t, N - 1>());
}
};
@ -688,40 +784,57 @@ struct formatter<
FMT_BEGIN_EXPORT
/// Returns a view that formats the iterator range `[begin, end)` with elements
/// separated by `sep`.
template <typename It, typename Sentinel>
auto join(It begin, Sentinel end, string_view sep) -> join_view<It, Sentinel> {
return {std::move(begin), end, sep};
}
/**
\rst
Returns an object that formats `tuple` with elements separated by `sep`.
**Example**::
std::tuple<int, char> t = {1, 'a'};
fmt::print("{}", fmt::join(t, ", "));
// Output: "1, a"
\endrst
* Returns a view that formats `range` with elements separated by `sep`.
*
* **Example**:
*
* auto v = std::vector<int>{1, 2, 3};
* fmt::print("{}", fmt::join(v, ", "));
* // Output: 1, 2, 3
*
* `fmt::join` applies passed format specifiers to the range elements:
*
* fmt::print("{:02}", fmt::join(v, ", "));
* // Output: 01, 02, 03
*/
template <typename... T>
FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple, string_view sep)
-> tuple_join_view<char, T...> {
return {tuple, sep};
template <typename Range, FMT_ENABLE_IF(!is_tuple_like<Range>::value)>
auto join(Range&& r, string_view sep)
-> join_view<decltype(detail::range_begin(r)),
decltype(detail::range_end(r))> {
return {detail::range_begin(r), detail::range_end(r), sep};
}
template <typename... T>
FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple,
basic_string_view<wchar_t> sep)
-> tuple_join_view<wchar_t, T...> {
/**
* Returns an object that formats `std::tuple` with elements separated by `sep`.
*
* **Example**:
*
* auto t = std::tuple<int, char>{1, 'a'};
* fmt::print("{}", fmt::join(t, ", "));
* // Output: 1, a
*/
template <typename Tuple, FMT_ENABLE_IF(is_tuple_like<Tuple>::value)>
FMT_CONSTEXPR auto join(const Tuple& tuple, string_view sep)
-> tuple_join_view<char, Tuple> {
return {tuple, sep};
}
/**
\rst
Returns an object that formats `initializer_list` with elements separated by
`sep`.
**Example**::
fmt::print("{}", fmt::join({1, 2, 3}, ", "));
// Output: "1, 2, 3"
\endrst
* Returns an object that formats `std::initializer_list` with elements
* separated by `sep`.
*
* **Example**:
*
* fmt::print("{}", fmt::join({1, 2, 3}, ", "));
* // Output: "1, 2, 3"
*/
template <typename T>
auto join(std::initializer_list<T> list, string_view sep)

592
thirdparty/fmt/include/fmt/std.h vendored
View file

@ -8,35 +8,49 @@
#ifndef FMT_STD_H_
#define FMT_STD_H_
#include <atomic>
#include <bitset>
#include <cstdlib>
#include <exception>
#include <memory>
#include <thread>
#include <type_traits>
#include <typeinfo>
#include <utility>
#include <vector>
#include "format.h"
#include "ostream.h"
#ifndef FMT_MODULE
# include <atomic>
# include <bitset>
# include <complex>
# include <cstdlib>
# include <exception>
# include <functional>
# include <memory>
# include <thread>
# include <type_traits>
# include <typeinfo>
# include <utility>
# include <vector>
// Check FMT_CPLUSPLUS to suppress a bogus warning in MSVC.
# if FMT_CPLUSPLUS >= 201703L
# if FMT_HAS_INCLUDE(<filesystem>) && \
(!defined(FMT_CPP_LIB_FILESYSTEM) || FMT_CPP_LIB_FILESYSTEM != 0)
# include <filesystem>
# endif
# if FMT_HAS_INCLUDE(<variant>)
# include <variant>
# endif
# if FMT_HAS_INCLUDE(<optional>)
# include <optional>
# endif
# endif
// Use > instead of >= in the version check because <source_location> may be
// available after C++17 but before C++20 is marked as implemented.
# if FMT_CPLUSPLUS > 201703L && FMT_HAS_INCLUDE(<source_location>)
# include <source_location>
# endif
# if FMT_CPLUSPLUS > 202002L && FMT_HAS_INCLUDE(<expected>)
# include <expected>
# endif
#endif // FMT_MODULE
#if FMT_HAS_INCLUDE(<version>)
# include <version>
#endif
// Checking FMT_CPLUSPLUS for warning suppression in MSVC.
#if FMT_CPLUSPLUS >= 201703L
# if FMT_HAS_INCLUDE(<filesystem>)
# include <filesystem>
# endif
# if FMT_HAS_INCLUDE(<variant>)
# include <variant>
# endif
# if FMT_HAS_INCLUDE(<optional>)
# include <optional>
# endif
#endif
// GCC 4 does not support FMT_HAS_INCLUDE.
#if FMT_HAS_INCLUDE(<cxxabi.h>) || defined(__GLIBCXX__)
@ -48,54 +62,53 @@
# endif
#endif
// Check if typeid is available.
#ifndef FMT_USE_TYPEID
// __RTTI is for EDG compilers. In MSVC typeid is available without RTTI.
# if defined(__GXX_RTTI) || FMT_HAS_FEATURE(cxx_rtti) || FMT_MSC_VERSION || \
defined(__INTEL_RTTI__) || defined(__RTTI)
# define FMT_USE_TYPEID 1
// For older Xcode versions, __cpp_lib_xxx flags are inaccurately defined.
#ifndef FMT_CPP_LIB_FILESYSTEM
# ifdef __cpp_lib_filesystem
# define FMT_CPP_LIB_FILESYSTEM __cpp_lib_filesystem
# else
# define FMT_USE_TYPEID 0
# define FMT_CPP_LIB_FILESYSTEM 0
# endif
#endif
#ifdef __cpp_lib_filesystem
#ifndef FMT_CPP_LIB_VARIANT
# ifdef __cpp_lib_variant
# define FMT_CPP_LIB_VARIANT __cpp_lib_variant
# else
# define FMT_CPP_LIB_VARIANT 0
# endif
#endif
#if FMT_CPP_LIB_FILESYSTEM
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Char> auto get_path_string(const std::filesystem::path& p) {
return p.string<Char>();
template <typename Char, typename PathChar>
auto get_path_string(const std::filesystem::path& p,
const std::basic_string<PathChar>& native) {
if constexpr (std::is_same_v<Char, char> && std::is_same_v<PathChar, wchar_t>)
return to_utf8<wchar_t>(native, to_utf8_error_policy::replace);
else
return p.string<Char>();
}
template <typename Char>
template <typename Char, typename PathChar>
void write_escaped_path(basic_memory_buffer<Char>& quoted,
const std::filesystem::path& p) {
write_escaped_string<Char>(std::back_inserter(quoted), p.string<Char>());
}
# ifdef _WIN32
template <>
inline auto get_path_string<char>(const std::filesystem::path& p) {
return to_utf8<wchar_t>(p.native(), to_utf8_error_policy::replace);
}
template <>
inline void write_escaped_path<char>(memory_buffer& quoted,
const std::filesystem::path& p) {
auto buf = basic_memory_buffer<wchar_t>();
write_escaped_string<wchar_t>(std::back_inserter(buf), p.native());
bool valid = to_utf8<wchar_t>::convert(quoted, {buf.data(), buf.size()});
FMT_ASSERT(valid, "invalid utf16");
}
# endif // _WIN32
template <>
inline void write_escaped_path<std::filesystem::path::value_type>(
basic_memory_buffer<std::filesystem::path::value_type>& quoted,
const std::filesystem::path& p) {
write_escaped_string<std::filesystem::path::value_type>(
std::back_inserter(quoted), p.native());
const std::filesystem::path& p,
const std::basic_string<PathChar>& native) {
if constexpr (std::is_same_v<Char, char> &&
std::is_same_v<PathChar, wchar_t>) {
auto buf = basic_memory_buffer<wchar_t>();
write_escaped_string<wchar_t>(std::back_inserter(buf), native);
bool valid = to_utf8<wchar_t>::convert(quoted, {buf.data(), buf.size()});
FMT_ASSERT(valid, "invalid utf16");
} else if constexpr (std::is_same_v<Char, PathChar>) {
write_escaped_string<std::filesystem::path::value_type>(
std::back_inserter(quoted), native);
} else {
write_escaped_string<Char>(std::back_inserter(quoted), p.string<Char>());
}
}
} // namespace detail
@ -103,48 +116,98 @@ inline void write_escaped_path<std::filesystem::path::value_type>(
FMT_EXPORT
template <typename Char> struct formatter<std::filesystem::path, Char> {
private:
format_specs<Char> specs_;
format_specs specs_;
detail::arg_ref<Char> width_ref_;
bool debug_ = false;
char path_type_ = 0;
public:
FMT_CONSTEXPR void set_debug_format(bool set = true) { debug_ = set; }
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) {
auto it = ctx.begin(), end = ctx.end();
if (it == end) return it;
it = detail::parse_align(it, end, specs_);
if (it == end) return it;
it = detail::parse_dynamic_spec(it, end, specs_.width, width_ref_, ctx);
Char c = *it;
if ((c >= '0' && c <= '9') || c == '{')
it = detail::parse_width(it, end, specs_, width_ref_, ctx);
if (it != end && *it == '?') {
debug_ = true;
++it;
}
if (it != end && (*it == 'g')) path_type_ = detail::to_ascii(*it++);
return it;
}
template <typename FormatContext>
auto format(const std::filesystem::path& p, FormatContext& ctx) const {
auto specs = specs_;
detail::handle_dynamic_spec<detail::width_checker>(specs.width, width_ref_,
ctx);
auto path_string =
!path_type_ ? p.native()
: p.generic_string<std::filesystem::path::value_type>();
detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_,
ctx);
if (!debug_) {
auto s = detail::get_path_string<Char>(p);
auto s = detail::get_path_string<Char>(p, path_string);
return detail::write(ctx.out(), basic_string_view<Char>(s), specs);
}
auto quoted = basic_memory_buffer<Char>();
detail::write_escaped_path(quoted, p);
detail::write_escaped_path(quoted, p, path_string);
return detail::write(ctx.out(),
basic_string_view<Char>(quoted.data(), quoted.size()),
specs);
}
};
class path : public std::filesystem::path {
public:
auto display_string() const -> std::string {
const std::filesystem::path& base = *this;
return fmt::format(FMT_STRING("{}"), base);
}
auto system_string() const -> std::string { return string(); }
auto generic_display_string() const -> std::string {
const std::filesystem::path& base = *this;
return fmt::format(FMT_STRING("{:g}"), base);
}
auto generic_system_string() const -> std::string { return generic_string(); }
};
FMT_END_NAMESPACE
#endif
#endif // FMT_CPP_LIB_FILESYSTEM
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <std::size_t N, typename Char>
struct formatter<std::bitset<N>, Char> : nested_formatter<string_view> {
private:
// Functor because C++11 doesn't support generic lambdas.
struct writer {
const std::bitset<N>& bs;
template <typename OutputIt>
FMT_CONSTEXPR auto operator()(OutputIt out) -> OutputIt {
for (auto pos = N; pos > 0; --pos) {
out = detail::write<Char>(out, bs[pos - 1] ? Char('1') : Char('0'));
}
return out;
}
};
public:
template <typename FormatContext>
auto format(const std::bitset<N>& bs, FormatContext& ctx) const
-> decltype(ctx.out()) {
return write_padded(ctx, writer{bs});
}
};
FMT_EXPORT
template <typename Char>
struct formatter<std::thread::id, Char> : basic_ostream_formatter<Char> {};
@ -174,13 +237,13 @@ struct formatter<std::optional<T>, Char,
FMT_CONSTEXPR static void maybe_set_debug_format(U&, ...) {}
public:
template <typename ParseContext> FMT_CONSTEXPR auto parse(ParseContext& ctx) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) {
maybe_set_debug_format(underlying_, true);
return underlying_.parse(ctx);
}
template <typename FormatContext>
auto format(std::optional<T> const& opt, FormatContext& ctx) const
auto format(const std::optional<T>& opt, FormatContext& ctx) const
-> decltype(ctx.out()) {
if (!opt) return detail::write<Char>(ctx.out(), none);
@ -194,7 +257,81 @@ struct formatter<std::optional<T>, Char,
FMT_END_NAMESPACE
#endif // __cpp_lib_optional
#ifdef __cpp_lib_variant
#if defined(__cpp_lib_expected) || FMT_CPP_LIB_VARIANT
FMT_BEGIN_NAMESPACE
namespace detail {
template <typename Char, typename OutputIt, typename T>
auto write_escaped_alternative(OutputIt out, const T& v) -> OutputIt {
if constexpr (has_to_string_view<T>::value)
return write_escaped_string<Char>(out, detail::to_string_view(v));
if constexpr (std::is_same_v<T, Char>) return write_escaped_char(out, v);
return write<Char>(out, v);
}
} // namespace detail
FMT_END_NAMESPACE
#endif
#ifdef __cpp_lib_expected
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <typename T, typename E, typename Char>
struct formatter<std::expected<T, E>, Char,
std::enable_if_t<(std::is_void<T>::value ||
is_formattable<T, Char>::value) &&
is_formattable<E, Char>::value>> {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return ctx.begin();
}
template <typename FormatContext>
auto format(const std::expected<T, E>& value, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
if (value.has_value()) {
out = detail::write<Char>(out, "expected(");
if constexpr (!std::is_void<T>::value)
out = detail::write_escaped_alternative<Char>(out, *value);
} else {
out = detail::write<Char>(out, "unexpected(");
out = detail::write_escaped_alternative<Char>(out, value.error());
}
*out++ = ')';
return out;
}
};
FMT_END_NAMESPACE
#endif // __cpp_lib_expected
#ifdef __cpp_lib_source_location
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <> struct formatter<std::source_location> {
FMT_CONSTEXPR auto parse(parse_context<>& ctx) { return ctx.begin(); }
template <typename FormatContext>
auto format(const std::source_location& loc, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write(out, loc.file_name());
out = detail::write(out, ':');
out = detail::write<char>(out, loc.line());
out = detail::write(out, ':');
out = detail::write<char>(out, loc.column());
out = detail::write(out, ": ");
out = detail::write(out, loc.function_name());
return out;
}
};
FMT_END_NAMESPACE
#endif
#if FMT_CPP_LIB_VARIANT
FMT_BEGIN_NAMESPACE
namespace detail {
@ -218,16 +355,6 @@ template <typename T, typename C> class is_variant_formattable_ {
decltype(check(variant_index_sequence<T>{}))::value;
};
template <typename Char, typename OutputIt, typename T>
auto write_variant_alternative(OutputIt out, const T& v) -> OutputIt {
if constexpr (is_string<T>::value)
return write_escaped_string<Char>(out, detail::to_string_view(v));
else if constexpr (std::is_same_v<T, Char>)
return write_escaped_char(out, v);
else
return write<Char>(out, v);
}
} // namespace detail
template <typename T> struct is_variant_like {
@ -241,8 +368,7 @@ template <typename T, typename C> struct is_variant_formattable {
FMT_EXPORT
template <typename Char> struct formatter<std::monostate, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return ctx.begin();
}
@ -259,8 +385,7 @@ struct formatter<
Variant, Char,
std::enable_if_t<std::conjunction_v<
is_variant_like<Variant>, is_variant_formattable<Variant, Char>>>> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return ctx.begin();
}
@ -273,7 +398,7 @@ struct formatter<
FMT_TRY {
std::visit(
[&](const auto& v) {
out = detail::write_variant_alternative<Char>(out, v);
out = detail::write_escaped_alternative<Char>(out, v);
},
value);
}
@ -285,111 +410,164 @@ struct formatter<
}
};
FMT_END_NAMESPACE
#endif // __cpp_lib_variant
#endif // FMT_CPP_LIB_VARIANT
FMT_BEGIN_NAMESPACE
FMT_EXPORT
template <typename Char> struct formatter<std::error_code, Char> {
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
template <> struct formatter<std::error_code> {
private:
format_specs specs_;
detail::arg_ref<char> width_ref_;
public:
FMT_CONSTEXPR auto parse(parse_context<>& ctx) -> const char* {
auto it = ctx.begin(), end = ctx.end();
if (it == end) return it;
it = detail::parse_align(it, end, specs_);
if (it == end) return it;
char c = *it;
if ((c >= '0' && c <= '9') || c == '{')
it = detail::parse_width(it, end, specs_, width_ref_, ctx);
return it;
}
template <typename FormatContext>
FMT_CONSTEXPR auto format(const std::error_code& ec, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
out = detail::write_bytes(out, ec.category().name(), format_specs<Char>());
out = detail::write<Char>(out, Char(':'));
out = detail::write<Char>(out, ec.value());
return out;
FMT_CONSTEXPR20 auto format(const std::error_code& ec,
FormatContext& ctx) const -> decltype(ctx.out()) {
auto specs = specs_;
detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_,
ctx);
memory_buffer buf;
buf.append(string_view(ec.category().name()));
buf.push_back(':');
detail::write<char>(appender(buf), ec.value());
return detail::write<char>(ctx.out(), string_view(buf.data(), buf.size()),
specs);
}
};
#if FMT_USE_RTTI
namespace detail {
template <typename Char, typename OutputIt>
auto write_demangled_name(OutputIt out, const std::type_info& ti) -> OutputIt {
# ifdef FMT_HAS_ABI_CXA_DEMANGLE
int status = 0;
std::size_t size = 0;
std::unique_ptr<char, void (*)(void*)> demangled_name_ptr(
abi::__cxa_demangle(ti.name(), nullptr, &size, &status), &std::free);
string_view demangled_name_view;
if (demangled_name_ptr) {
demangled_name_view = demangled_name_ptr.get();
// Normalization of stdlib inline namespace names.
// libc++ inline namespaces.
// std::__1::* -> std::*
// std::__1::__fs::* -> std::*
// libstdc++ inline namespaces.
// std::__cxx11::* -> std::*
// std::filesystem::__cxx11::* -> std::filesystem::*
if (demangled_name_view.starts_with("std::")) {
char* begin = demangled_name_ptr.get();
char* to = begin + 5; // std::
for (char *from = to, *end = begin + demangled_name_view.size();
from < end;) {
// This is safe, because demangled_name is NUL-terminated.
if (from[0] == '_' && from[1] == '_') {
char* next = from + 1;
while (next < end && *next != ':') next++;
if (next[0] == ':' && next[1] == ':') {
from = next + 2;
continue;
}
}
*to++ = *from++;
}
demangled_name_view = {begin, detail::to_unsigned(to - begin)};
}
} else {
demangled_name_view = string_view(ti.name());
}
return detail::write_bytes<Char>(out, demangled_name_view);
# elif FMT_MSC_VERSION
const string_view demangled_name(ti.name());
for (std::size_t i = 0; i < demangled_name.size(); ++i) {
auto sub = demangled_name;
sub.remove_prefix(i);
if (sub.starts_with("enum ")) {
i += 4;
continue;
}
if (sub.starts_with("class ") || sub.starts_with("union ")) {
i += 5;
continue;
}
if (sub.starts_with("struct ")) {
i += 6;
continue;
}
if (*sub.begin() != ' ') *out++ = *sub.begin();
}
return out;
# else
return detail::write_bytes<Char>(out, string_view(ti.name()));
# endif
}
} // namespace detail
FMT_EXPORT
template <typename Char>
struct formatter<std::type_info, Char // DEPRECATED! Mixing code unit types.
> {
public:
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
return ctx.begin();
}
template <typename Context>
auto format(const std::type_info& ti, Context& ctx) const
-> decltype(ctx.out()) {
return detail::write_demangled_name<Char>(ctx.out(), ti);
}
};
#endif
FMT_EXPORT
template <typename T, typename Char>
struct formatter<
T, Char,
T, Char, // DEPRECATED! Mixing code unit types.
typename std::enable_if<std::is_base_of<std::exception, T>::value>::type> {
private:
bool with_typename_ = false;
public:
FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
-> decltype(ctx.begin()) {
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
auto it = ctx.begin();
auto end = ctx.end();
if (it == end || *it == '}') return it;
if (*it == 't') {
++it;
with_typename_ = FMT_USE_TYPEID != 0;
with_typename_ = FMT_USE_RTTI != 0;
}
return it;
}
template <typename OutputIt>
auto format(const std::exception& ex,
basic_format_context<OutputIt, Char>& ctx) const -> OutputIt {
format_specs<Char> spec;
template <typename Context>
auto format(const std::exception& ex, Context& ctx) const
-> decltype(ctx.out()) {
auto out = ctx.out();
if (!with_typename_)
return detail::write_bytes(out, string_view(ex.what()), spec);
#if FMT_USE_TYPEID
const std::type_info& ti = typeid(ex);
# ifdef FMT_HAS_ABI_CXA_DEMANGLE
int status = 0;
std::size_t size = 0;
std::unique_ptr<char, decltype(&std::free)> demangled_name_ptr(
abi::__cxa_demangle(ti.name(), nullptr, &size, &status), &std::free);
string_view demangled_name_view;
if (demangled_name_ptr) {
demangled_name_view = demangled_name_ptr.get();
// Normalization of stdlib inline namespace names.
// libc++ inline namespaces.
// std::__1::* -> std::*
// std::__1::__fs::* -> std::*
// libstdc++ inline namespaces.
// std::__cxx11::* -> std::*
// std::filesystem::__cxx11::* -> std::filesystem::*
if (demangled_name_view.starts_with("std::")) {
char* begin = demangled_name_ptr.get();
char* to = begin + 5; // std::
for (char *from = to, *end = begin + demangled_name_view.size();
from < end;) {
// This is safe, because demangled_name is NUL-terminated.
if (from[0] == '_' && from[1] == '_') {
char* next = from + 1;
while (next < end && *next != ':') next++;
if (next[0] == ':' && next[1] == ':') {
from = next + 2;
continue;
}
}
*to++ = *from++;
}
demangled_name_view = {begin, detail::to_unsigned(to - begin)};
}
} else {
demangled_name_view = string_view(ti.name());
#if FMT_USE_RTTI
if (with_typename_) {
out = detail::write_demangled_name<Char>(out, typeid(ex));
*out++ = ':';
*out++ = ' ';
}
out = detail::write_bytes(out, demangled_name_view, spec);
# elif FMT_MSC_VERSION
string_view demangled_name_view(ti.name());
if (demangled_name_view.starts_with("class "))
demangled_name_view.remove_prefix(6);
else if (demangled_name_view.starts_with("struct "))
demangled_name_view.remove_prefix(7);
out = detail::write_bytes(out, demangled_name_view, spec);
# else
out = detail::write_bytes(out, string_view(ti.name()), spec);
# endif
*out++ = ':';
*out++ = ' ';
return detail::write_bytes(out, string_view(ex.what()), spec);
#endif
return detail::write_bytes<Char>(out, string_view(ex.what()));
}
};
@ -436,6 +614,14 @@ struct formatter<BitRef, Char,
}
};
template <typename T, typename Deleter>
auto ptr(const std::unique_ptr<T, Deleter>& p) -> const void* {
return p.get();
}
template <typename T> auto ptr(const std::shared_ptr<T>& p) -> const void* {
return p.get();
}
FMT_EXPORT
template <typename T, typename Char>
struct formatter<std::atomic<T>, Char,
@ -451,15 +637,91 @@ struct formatter<std::atomic<T>, Char,
#ifdef __cpp_lib_atomic_flag_test
FMT_EXPORT
template <typename Char>
struct formatter<std::atomic_flag, Char>
: formatter<bool, Char> {
struct formatter<std::atomic_flag, Char> : formatter<bool, Char> {
template <typename FormatContext>
auto format(const std::atomic_flag& v, FormatContext& ctx) const
-> decltype(ctx.out()) {
return formatter<bool, Char>::format(v.test(), ctx);
}
};
#endif // __cpp_lib_atomic_flag_test
#endif // __cpp_lib_atomic_flag_test
FMT_EXPORT
template <typename T, typename Char> struct formatter<std::complex<T>, Char> {
private:
detail::dynamic_format_specs<Char> specs_;
template <typename FormatContext, typename OutputIt>
FMT_CONSTEXPR auto do_format(const std::complex<T>& c,
detail::dynamic_format_specs<Char>& specs,
FormatContext& ctx, OutputIt out) const
-> OutputIt {
if (c.real() != 0) {
*out++ = Char('(');
out = detail::write<Char>(out, c.real(), specs, ctx.locale());
specs.set_sign(sign::plus);
out = detail::write<Char>(out, c.imag(), specs, ctx.locale());
if (!detail::isfinite(c.imag())) *out++ = Char(' ');
*out++ = Char('i');
*out++ = Char(')');
return out;
}
out = detail::write<Char>(out, c.imag(), specs, ctx.locale());
if (!detail::isfinite(c.imag())) *out++ = Char(' ');
*out++ = Char('i');
return out;
}
public:
FMT_CONSTEXPR auto parse(parse_context<Char>& ctx) -> const Char* {
if (ctx.begin() == ctx.end() || *ctx.begin() == '}') return ctx.begin();
return parse_format_specs(ctx.begin(), ctx.end(), specs_, ctx,
detail::type_constant<T, Char>::value);
}
template <typename FormatContext>
auto format(const std::complex<T>& c, FormatContext& ctx) const
-> decltype(ctx.out()) {
auto specs = specs_;
if (specs.dynamic()) {
detail::handle_dynamic_spec(specs.dynamic_width(), specs.width,
specs.width_ref, ctx);
detail::handle_dynamic_spec(specs.dynamic_precision(), specs.precision,
specs.precision_ref, ctx);
}
if (specs.width == 0) return do_format(c, specs, ctx, ctx.out());
auto buf = basic_memory_buffer<Char>();
auto outer_specs = format_specs();
outer_specs.width = specs.width;
auto fill = specs.template fill<Char>();
if (fill)
outer_specs.set_fill(basic_string_view<Char>(fill, specs.fill_size()));
outer_specs.set_align(specs.align());
specs.width = 0;
specs.set_fill({});
specs.set_align(align::none);
do_format(c, specs, ctx, basic_appender<Char>(buf));
return detail::write<Char>(ctx.out(),
basic_string_view<Char>(buf.data(), buf.size()),
outer_specs);
}
};
FMT_EXPORT
template <typename T, typename Char>
struct formatter<std::reference_wrapper<T>, Char,
enable_if_t<is_formattable<remove_cvref_t<T>, Char>::value>>
: formatter<remove_cvref_t<T>, Char> {
template <typename FormatContext>
auto format(std::reference_wrapper<T> ref, FormatContext& ctx) const
-> decltype(ctx.out()) {
return formatter<remove_cvref_t<T>, Char>::format(ref.get(), ctx);
}
};
FMT_END_NAMESPACE
#endif // FMT_STD_H_

282
thirdparty/fmt/include/fmt/xchar.h vendored
View file

@ -8,12 +8,16 @@
#ifndef FMT_XCHAR_H_
#define FMT_XCHAR_H_
#include <cwchar>
#include "color.h"
#include "format.h"
#include "ostream.h"
#include "ranges.h"
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
# include <locale>
#ifndef FMT_MODULE
# include <cwchar>
# if FMT_USE_LOCALE
# include <locale>
# endif
#endif
FMT_BEGIN_NAMESPACE
@ -22,10 +26,26 @@ namespace detail {
template <typename T>
using is_exotic_char = bool_constant<!std::is_same<T, char>::value>;
inline auto write_loc(std::back_insert_iterator<detail::buffer<wchar_t>> out,
loc_value value, const format_specs<wchar_t>& specs,
locale_ref loc) -> bool {
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
template <typename S, typename = void> struct format_string_char {};
template <typename S>
struct format_string_char<
S, void_t<decltype(sizeof(detail::to_string_view(std::declval<S>())))>> {
using type = char_t<S>;
};
template <typename S>
struct format_string_char<
S, enable_if_t<std::is_base_of<detail::compile_string, S>::value>> {
using type = typename S::char_type;
};
template <typename S>
using format_string_char_t = typename format_string_char<S>::type;
inline auto write_loc(basic_appender<wchar_t> out, loc_value value,
const format_specs& specs, locale_ref loc) -> bool {
#if FMT_USE_LOCALE
auto& numpunct =
std::use_facet<std::numpunct<wchar_t>>(loc.get<std::locale>());
auto separator = std::wstring();
@ -40,41 +60,79 @@ inline auto write_loc(std::back_insert_iterator<detail::buffer<wchar_t>> out,
FMT_BEGIN_EXPORT
using wstring_view = basic_string_view<wchar_t>;
using wformat_parse_context = basic_format_parse_context<wchar_t>;
using wformat_context = buffer_context<wchar_t>;
using wformat_parse_context = parse_context<wchar_t>;
using wformat_context = buffered_context<wchar_t>;
using wformat_args = basic_format_args<wformat_context>;
using wmemory_buffer = basic_memory_buffer<wchar_t>;
#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
// Workaround broken conversion on older gcc.
template <typename... Args> using wformat_string = wstring_view;
inline auto runtime(wstring_view s) -> wstring_view { return s; }
#else
template <typename... Args>
using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
template <typename Char, typename... T> struct basic_fstring {
private:
basic_string_view<Char> str_;
static constexpr int num_static_named_args =
detail::count_static_named_args<T...>();
using checker = detail::format_string_checker<
Char, static_cast<int>(sizeof...(T)), num_static_named_args,
num_static_named_args != detail::count_named_args<T...>()>;
using arg_pack = detail::arg_pack<T...>;
public:
using t = basic_fstring;
template <typename S,
FMT_ENABLE_IF(
std::is_convertible<const S&, basic_string_view<Char>>::value)>
FMT_CONSTEVAL FMT_ALWAYS_INLINE basic_fstring(const S& s) : str_(s) {
if (FMT_USE_CONSTEVAL)
detail::parse_format_string<Char>(s, checker(s, arg_pack()));
}
template <typename S,
FMT_ENABLE_IF(std::is_base_of<detail::compile_string, S>::value&&
std::is_same<typename S::char_type, Char>::value)>
FMT_ALWAYS_INLINE basic_fstring(const S&) : str_(S()) {
FMT_CONSTEXPR auto sv = basic_string_view<Char>(S());
FMT_CONSTEXPR int ignore =
(parse_format_string(sv, checker(sv, arg_pack())), 0);
detail::ignore_unused(ignore);
}
basic_fstring(runtime_format_string<Char> fmt) : str_(fmt.str) {}
operator basic_string_view<Char>() const { return str_; }
auto get() const -> basic_string_view<Char> { return str_; }
};
template <typename Char, typename... T>
using basic_format_string = basic_fstring<Char, T...>;
template <typename... T>
using wformat_string = typename basic_format_string<wchar_t, T...>::t;
inline auto runtime(wstring_view s) -> runtime_format_string<wchar_t> {
return {{s}};
}
#endif
template <> struct is_char<wchar_t> : std::true_type {};
template <> struct is_char<detail::char8_type> : std::true_type {};
template <> struct is_char<char16_t> : std::true_type {};
template <> struct is_char<char32_t> : std::true_type {};
#ifdef __cpp_char8_t
template <> struct is_char<char8_t> : bool_constant<detail::is_utf8_enabled> {};
#endif
template <typename... T>
constexpr format_arg_store<wformat_context, T...> make_wformat_args(
const T&... args) {
return {args...};
constexpr auto make_wformat_args(T&... args)
-> decltype(fmt::make_format_args<wformat_context>(args...)) {
return fmt::make_format_args<wformat_context>(args...);
}
#if !FMT_USE_NONTYPE_TEMPLATE_ARGS
inline namespace literals {
#if FMT_USE_USER_DEFINED_LITERALS && !FMT_USE_NONTYPE_TEMPLATE_ARGS
constexpr detail::udl_arg<wchar_t> operator"" _a(const wchar_t* s, size_t) {
inline auto operator""_a(const wchar_t* s, size_t) -> detail::udl_arg<wchar_t> {
return {s};
}
#endif
} // namespace literals
#endif
template <typename It, typename Sentinel>
auto join(It begin, Sentinel end, wstring_view sep)
@ -82,9 +140,9 @@ auto join(It begin, Sentinel end, wstring_view sep)
return {begin, end, sep};
}
template <typename Range>
template <typename Range, FMT_ENABLE_IF(!is_tuple_like<Range>::value)>
auto join(Range&& range, wstring_view sep)
-> join_view<detail::iterator_t<Range>, detail::sentinel_t<Range>,
-> join_view<decltype(std::begin(range)), decltype(std::end(range)),
wchar_t> {
return join(std::begin(range), std::end(range), sep);
}
@ -95,13 +153,19 @@ auto join(std::initializer_list<T> list, wstring_view sep)
return join(std::begin(list), std::end(list), sep);
}
template <typename Tuple, FMT_ENABLE_IF(is_tuple_like<Tuple>::value)>
auto join(const Tuple& tuple, basic_string_view<wchar_t> sep)
-> tuple_join_view<wchar_t, Tuple> {
return {tuple, sep};
}
template <typename Char, FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
auto vformat(basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
auto vformat(basic_string_view<Char> fmt,
typename detail::vformat_args<Char>::type args)
-> std::basic_string<Char> {
auto buf = basic_memory_buffer<Char>();
detail::vformat_to(buf, format_str, args);
return to_string(buf);
detail::vformat_to(buf, fmt, args);
return {buf.data(), buf.size()};
}
template <typename... T>
@ -109,110 +173,117 @@ auto format(wformat_string<T...> fmt, T&&... args) -> std::wstring {
return vformat(fmt::wstring_view(fmt), fmt::make_wformat_args(args...));
}
template <typename OutputIt, typename... T>
auto format_to(OutputIt out, wformat_string<T...> fmt, T&&... args)
-> OutputIt {
return vformat_to(out, fmt::wstring_view(fmt),
fmt::make_wformat_args(args...));
}
// Pass char_t as a default template parameter instead of using
// std::basic_string<char_t<S>> to reduce the symbol size.
template <typename S, typename... T, typename Char = char_t<S>,
template <typename S, typename... T,
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(!std::is_same<Char, char>::value &&
!std::is_same<Char, wchar_t>::value)>
auto format(const S& format_str, T&&... args) -> std::basic_string<Char> {
return vformat(detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
auto format(const S& fmt, T&&... args) -> std::basic_string<Char> {
return vformat(detail::to_string_view(fmt),
fmt::make_format_args<buffered_context<Char>>(args...));
}
template <typename Locale, typename S, typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_locale<Locale>::value&&
detail::is_exotic_char<Char>::value)>
inline auto vformat(
const Locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
template <typename S, typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_exotic_char<Char>::value)>
inline auto vformat(detail::locale_ref loc, const S& fmt,
typename detail::vformat_args<Char>::type args)
-> std::basic_string<Char> {
return detail::vformat(loc, detail::to_string_view(format_str), args);
auto buf = basic_memory_buffer<Char>();
detail::vformat_to(buf, detail::to_string_view(fmt), args,
detail::locale_ref(loc));
return {buf.data(), buf.size()};
}
template <typename Locale, typename S, typename... T, typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_locale<Locale>::value&&
detail::is_exotic_char<Char>::value)>
inline auto format(const Locale& loc, const S& format_str, T&&... args)
template <typename S, typename... T,
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_exotic_char<Char>::value)>
inline auto format(detail::locale_ref loc, const S& fmt, T&&... args)
-> std::basic_string<Char> {
return detail::vformat(loc, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
return vformat(loc, detail::to_string_view(fmt),
fmt::make_format_args<buffered_context<Char>>(args...));
}
template <typename OutputIt, typename S, typename Char = char_t<S>,
template <typename OutputIt, typename S,
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
auto vformat_to(OutputIt out, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
-> OutputIt {
auto vformat_to(OutputIt out, const S& fmt,
typename detail::vformat_args<Char>::type args) -> OutputIt {
auto&& buf = detail::get_buffer<Char>(out);
detail::vformat_to(buf, detail::to_string_view(format_str), args);
detail::vformat_to(buf, detail::to_string_view(fmt), args);
return detail::get_iterator(buf, out);
}
template <typename OutputIt, typename S, typename... T,
typename Char = char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value &&
!std::is_same<Char, char>::value &&
!std::is_same<Char, wchar_t>::value)>
inline auto format_to(OutputIt out, const S& fmt, T&&... args) -> OutputIt {
return vformat_to(out, detail::to_string_view(fmt),
fmt::make_format_args<buffer_context<Char>>(args...));
fmt::make_format_args<buffered_context<Char>>(args...));
}
template <typename Locale, typename S, typename OutputIt, typename... Args,
typename Char = char_t<S>,
template <typename S, typename OutputIt, typename... Args,
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_locale<Locale>::value&&
detail::is_exotic_char<Char>::value)>
inline auto vformat_to(
OutputIt out, const Locale& loc, const S& format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args) -> OutputIt {
detail::is_exotic_char<Char>::value)>
inline auto vformat_to(OutputIt out, detail::locale_ref loc, const S& fmt,
typename detail::vformat_args<Char>::type args)
-> OutputIt {
auto&& buf = detail::get_buffer<Char>(out);
vformat_to(buf, detail::to_string_view(format_str), args,
detail::locale_ref(loc));
vformat_to(buf, detail::to_string_view(fmt), args, detail::locale_ref(loc));
return detail::get_iterator(buf, out);
}
template <
typename OutputIt, typename Locale, typename S, typename... T,
typename Char = char_t<S>,
bool enable = detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_locale<Locale>::value&& detail::is_exotic_char<Char>::value>
inline auto format_to(OutputIt out, const Locale& loc, const S& format_str,
template <typename OutputIt, typename S, typename... T,
typename Char = detail::format_string_char_t<S>,
bool enable = detail::is_output_iterator<OutputIt, Char>::value &&
detail::is_exotic_char<Char>::value>
inline auto format_to(OutputIt out, detail::locale_ref loc, const S& fmt,
T&&... args) ->
typename std::enable_if<enable, OutputIt>::type {
return vformat_to(out, loc, detail::to_string_view(format_str),
fmt::make_format_args<buffer_context<Char>>(args...));
return vformat_to(out, loc, detail::to_string_view(fmt),
fmt::make_format_args<buffered_context<Char>>(args...));
}
template <typename OutputIt, typename Char, typename... Args,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
inline auto vformat_to_n(
OutputIt out, size_t n, basic_string_view<Char> format_str,
basic_format_args<buffer_context<type_identity_t<Char>>> args)
inline auto vformat_to_n(OutputIt out, size_t n, basic_string_view<Char> fmt,
typename detail::vformat_args<Char>::type args)
-> format_to_n_result<OutputIt> {
using traits = detail::fixed_buffer_traits;
auto buf = detail::iterator_buffer<OutputIt, Char, traits>(out, n);
detail::vformat_to(buf, format_str, args);
detail::vformat_to(buf, fmt, args);
return {buf.out(), buf.count()};
}
template <typename OutputIt, typename S, typename... T,
typename Char = char_t<S>,
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
detail::is_exotic_char<Char>::value)>
inline auto format_to_n(OutputIt out, size_t n, const S& fmt, T&&... args)
-> format_to_n_result<OutputIt> {
return vformat_to_n(out, n, detail::to_string_view(fmt),
fmt::make_format_args<buffer_context<Char>>(args...));
return vformat_to_n(out, n, fmt::basic_string_view<Char>(fmt),
fmt::make_format_args<buffered_context<Char>>(args...));
}
template <typename S, typename... T, typename Char = char_t<S>,
template <typename S, typename... T,
typename Char = detail::format_string_char_t<S>,
FMT_ENABLE_IF(detail::is_exotic_char<Char>::value)>
inline auto formatted_size(const S& fmt, T&&... args) -> size_t {
auto buf = detail::counting_buffer<Char>();
detail::vformat_to(buf, detail::to_string_view(fmt),
fmt::make_format_args<buffer_context<Char>>(args...));
fmt::make_format_args<buffered_context<Char>>(args...));
return buf.count();
}
@ -246,9 +317,48 @@ template <typename... T> void println(wformat_string<T...> fmt, T&&... args) {
return print(L"{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
/**
Converts *value* to ``std::wstring`` using the default format for type *T*.
*/
inline auto vformat(const text_style& ts, wstring_view fmt, wformat_args args)
-> std::wstring {
auto buf = wmemory_buffer();
detail::vformat_to(buf, ts, fmt, args);
return {buf.data(), buf.size()};
}
template <typename... T>
inline auto format(const text_style& ts, wformat_string<T...> fmt, T&&... args)
-> std::wstring {
return fmt::vformat(ts, fmt, fmt::make_wformat_args(args...));
}
template <typename... T>
FMT_DEPRECATED void print(std::FILE* f, const text_style& ts,
wformat_string<T...> fmt, const T&... args) {
vprint(f, ts, fmt, fmt::make_wformat_args(args...));
}
template <typename... T>
FMT_DEPRECATED void print(const text_style& ts, wformat_string<T...> fmt,
const T&... args) {
return print(stdout, ts, fmt, args...);
}
inline void vprint(std::wostream& os, wstring_view fmt, wformat_args args) {
auto buffer = basic_memory_buffer<wchar_t>();
detail::vformat_to(buffer, fmt, args);
detail::write_buffer(os, buffer);
}
template <typename... T>
void print(std::wostream& os, wformat_string<T...> fmt, T&&... args) {
vprint(os, fmt, fmt::make_format_args<buffered_context<wchar_t>>(args...));
}
template <typename... T>
void println(std::wostream& os, wformat_string<T...> fmt, T&&... args) {
print(os, L"{}\n", fmt::format(fmt, std::forward<T>(args)...));
}
/// Converts `value` to `std::wstring` using the default format for type `T`.
template <typename T> inline auto to_wstring(const T& value) -> std::wstring {
return format(FMT_STRING(L"{}"), value);
}