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stdinc: Add a comment to clarify why inline functions are needed here 

Signed-off-by: Simon McVittie <smcv@collabora.com>
This commit is contained in:
Simon McVittie 2022-05-10 09:44:23 +01:00 committed by Sam Lantinga
parent f7280dcebb
commit 8ab3ae98f0
1 changed files with 5 additions and 0 deletions
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5
include/SDL_stdinc.h
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@ -752,6 +752,9 @@ SDL_FORCE_INLINE int SDL_size_mul_overflow (size_t a,
}
#if _SDL_HAS_BUILTIN(__builtin_mul_overflow)
/* This needs to be wrapped in an inline rather than being a direct #define,
* because __builtin_mul_overflow() is type-generic, but we want to be
* consistent about interpreting a and b as size_t. */
SDL_FORCE_INLINE int _SDL_size_mul_overflow_builtin (size_t a,
size_t b,
size_t *ret)
@ -779,6 +782,8 @@ SDL_FORCE_INLINE int SDL_size_add_overflow (size_t a,
}
#if _SDL_HAS_BUILTIN(__builtin_add_overflow)
/* This needs to be wrapped in an inline rather than being a direct #define,
* the same as the call to __builtin_mul_overflow() above. */
SDL_FORCE_INLINE int _SDL_size_add_overflow_builtin (size_t a,
size_t b,
size_t *ret)