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Fix behavior of SpanStream/VecStream seek-from-end

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This commit is contained in:
Eidolon 2023-12-05 19:18:42 -06:00
parent 4588943352
commit 98ba6c0590
1 changed files with 4 additions and 4 deletions
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8
src/io/streams.hpp
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@ -431,10 +431,10 @@ public:
head = offset;
break;
case SeekFrom::kEnd:
if (-offset >= static_cast<StreamOffset>(span_.size())) {
if (static_cast<StreamOffset>(span_.size()) + offset < 0) {
throw std::logic_error("end offset is out of bounds");
}
head = span_.size() - offset;
head = span_.size() + offset;
break;
case SeekFrom::kCurrent:
if (head_ + offset < 0) {
@ -526,10 +526,10 @@ public:
head = offset;
break;
case SeekFrom::kEnd:
if (-offset >= static_cast<StreamOffset>(vec_.size())) {
if (static_cast<StreamOffset>(vec_.size()) + offset < 0) {
throw std::logic_error("end offset is out of bounds");
}
head = vec_.size() - offset;
head = vec_.size() + offset;
break;
case SeekFrom::kCurrent:
if (head_ + offset < 0) {