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Update example comment.

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Nev3r 2021-02-11 14:22:49 +01:00 • committed by toaster
parent 368a83ccb8
commit a7b128b9bc
1 changed files with 4 additions and 17 deletions
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21
src/taglist.h
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@ -81,14 +81,6 @@ INT32 P_FindSpecialLineFromTag(INT16 special, INT16 tag, INT32 start);
#define TAG_ITER_THINGS(tag, return_varname) TAG_ITER(Tag_Iterate_Things, tag, return_varname) #define TAG_ITER_THINGS(tag, return_varname) TAG_ITER(Tag_Iterate_Things, tag, return_varname)
/* ITERATION MACROS /* ITERATION MACROS
TAG_ITER_DECLARECOUNTER must be used before using the iterators.
'level':
For each nested iteration, an additional TAG_ITER_DECLARECOUNTER
must be used with a different level number to avoid conflict with
the outer iterations.
Most cases don't have nested iterations and thus the level is just 0.
'tag': 'tag':
Pretty much the elements' tag to iterate through. Pretty much the elements' tag to iterate through.
@ -98,17 +90,12 @@ Target variable's name to return the iteration results to.
EXAMPLE: EXAMPLE:
{ {
TAG_ITER_DECLARECOUNTER(0);
TAG_ITER_DECLARECOUNTER(1); // For the nested iteration.
size_t li; size_t li;
size_t sec;
INT32 tag1 = 4; INT32 tag1 = 4;
... ...
TAG_ITER_LINES(0, tag1, li) TAG_ITER_LINES(tag1, li)
{ {
line_t *line = lines + li; line_t *line = lines + li;
@ -116,11 +103,11 @@ EXAMPLE:
if (something) if (something)
{ {
size_t sec;
mtag_t tag2 = 8; mtag_t tag2 = 8;
// Nested iteration; just make sure the level is higher // Nested iteration.
// and that it has its own counter declared in scope. TAG_ITER_SECTORS(tag2, sec)
TAG_ITER_SECTORS(1, tag2, sec)
{ {
sector_t *sector = sectors + sec; sector_t *sector = sectors + sec;