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Construct INTPTR_MIN, INTPTR_MAX, and UINTPTR_MAX from the exact-width limit 

macros corresponding to __INTPTR_WIDTH__.

llvm-svn: 89239
This commit is contained in:
Ken Dyck 2009-11-18 20:36:29 +00:00
parent e9e0cd4e27
commit 68fa5afada
1 changed files with 4 additions and 9 deletions
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13
clang/lib/Headers/stdint.h
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@ -603,29 +603,24 @@ typedef __stdint_exjoin3(uint, __INTMAX_WIDTH__, _t) uintmax_t;
/* C99 7.18.2.4 Limits of integer types capable of holding object pointers. */
/* C99 7.18.3 Limits of other integer types. */
#define INTPTR_MIN __stdint_exjoin3( INT, __INTPTR_WIDTH__, _MIN)
#define INTPTR_MAX __stdint_exjoin3( INT, __INTPTR_WIDTH__, _MAX)
#define UINTPTR_MAX __stdint_exjoin3(UINT, __INTPTR_WIDTH__, _MAX)
#if __POINTER_WIDTH__ == 64
#define INTPTR_MIN INT64_MIN
#define INTPTR_MAX INT64_MAX
#define UINTPTR_MAX UINT64_MAX
#define PTRDIFF_MIN INT64_MIN
#define PTRDIFF_MAX INT64_MAX
#define SIZE_MAX UINT64_MAX
#elif __POINTER_WIDTH__ == 32
#define INTPTR_MIN INT32_MIN
#define INTPTR_MAX INT32_MAX
#define UINTPTR_MAX UINT32_MAX
#define PTRDIFF_MIN INT32_MIN
#define PTRDIFF_MAX INT32_MAX
#define SIZE_MAX UINT32_MAX
#elif __POINTER_WIDTH__ == 16
#define INTPTR_MIN INT16_MIN
#define INTPTR_MAX INT16_MAX
#define UINTPTR_MAX UINT16_MAX
#define PTRDIFF_MIN INT16_MIN
#define PTRDIFF_MAX INT16_MAX
#define SIZE_MAX UINT16_MAX