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include: Move SDL_HAS_BUILTIN to SDL_begin_code.h, document it.

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This macro fits better here, since most of the other macros in this file are
for testing similar compiler/target features, etc.
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Ryan C. Gordon 2024-12-19 19:11:47 -05:00
parent e46d8756e5
commit ff366fba87
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2 changed files with 22 additions and 12 deletions
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include/SDL3/SDL_stdinc.h
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@ -147,17 +147,6 @@ void *alloca(size_t);
typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
#endif
/**
* Check if the compiler supports a given builtin.
* Supported by virtually all clang versions and recent gcc. Use this
* instead of checking the clang version if possible.
*/
#ifdef __has_builtin
#define SDL_HAS_BUILTIN(x) __has_builtin(x)
#else
#define SDL_HAS_BUILTIN(x) 0
#endif
/**
* The number of elements in a static array.
*