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author | Hans Hagen <pragma@wxs.nl> | 2023-02-06 19:14:14 +0100 |
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committer | Context Git Mirror Bot <phg@phi-gamma.net> | 2023-02-06 19:14:14 +0100 |
commit | 0d0874ba797ee44f9fa53ed0fe95d7a863bf2f1b (patch) | |
tree | ea9c82877dd7a14db92e964277551370ecc156cb /source/luametatex/source/luacore/lua54/src/llimits.h | |
parent | 83667a906d7cac842635bc5243db70f55b346562 (diff) | |
download | context-0d0874ba797ee44f9fa53ed0fe95d7a863bf2f1b.tar.gz |
2023-02-06 17:57:00
Diffstat (limited to 'source/luametatex/source/luacore/lua54/src/llimits.h')
-rw-r--r-- | source/luametatex/source/luacore/lua54/src/llimits.h | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/source/luametatex/source/luacore/lua54/src/llimits.h b/source/luametatex/source/luacore/lua54/src/llimits.h index 52a32f92e..251a27021 100644 --- a/source/luametatex/source/luacore/lua54/src/llimits.h +++ b/source/luametatex/source/luacore/lua54/src/llimits.h @@ -71,11 +71,24 @@ typedef signed char ls_byte; /* -** conversion of pointer to unsigned integer: -** this is for hashing only; there is no problem if the integer -** cannot hold the whole pointer value +** conversion of pointer to unsigned integer: this is for hashing only; +** there is no problem if the integer cannot hold the whole pointer +** value. (In strict ISO C this may cause undefined behavior, but no +** actual machine seems to bother.) */ -#define point2uint(p) ((unsigned int)((size_t)(p) & UINT_MAX)) +#if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \ + __STDC_VERSION__ >= 199901L +#include <stdint.h> +#if defined(UINTPTR_MAX) /* even in C99 this type is optional */ +#define L_P2I uintptr_t +#else /* no 'intptr'? */ +#define L_P2I uintmax_t /* use the largerst available integer */ +#endif +#else /* C89 option */ +#define L_P2I size_t +#endif + +#define point2uint(p) ((unsigned int)((L_P2I)(p) & UINT_MAX)) |