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Fix __LINE__ macro expansion via recursive macro expansion; C macros sure are something sometimes...

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Nev3r 2021-02-11 14:12:50 +01:00
parent eda6b0ad8e
commit fbe2a19c60
1 changed files with 3 additions and 1 deletions
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4
src/taglist.h
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@ -71,7 +71,9 @@ INT32 Tag_Iterate_Things (const mtag_t tag, const size_t p);
INT32 Tag_FindLineSpecial(const INT16 special, const mtag_t tag); INT32 Tag_FindLineSpecial(const INT16 special, const mtag_t tag);
INT32 P_FindSpecialLineFromTag(INT16 special, INT16 tag, INT32 start); INT32 P_FindSpecialLineFromTag(INT16 special, INT16 tag, INT32 start);
#define TAG_ITER(fn, tag, return_varname) for(size_t ICNT_ ## __LINE__ = 0; (return_varname = fn(tag, ICNT_ ## __LINE__)) >= 0; ICNT_ ## __LINE__++) #define ICNAME2(id) ICNT_##id
#define ICNAME(id) ICNAME2(id)
#define TAG_ITER(fn, tag, return_varname) for(size_t ICNAME(__LINE__) = 0; (return_varname = fn(tag, ICNAME(__LINE__))) >= 0; ICNAME(__LINE__)++)
// Use these macros as wrappers for a taglist iteration. // Use these macros as wrappers for a taglist iteration.
#define TAG_ITER_SECTORS(tag, return_varname) TAG_ITER(Tag_Iterate_Sectors, tag, return_varname) #define TAG_ITER_SECTORS(tag, return_varname) TAG_ITER(Tag_Iterate_Sectors, tag, return_varname)