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2005-10-06 Ralf Corsepius <ralf.corsepius@rtems.org>

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* libc/include/stdint.h: Add [u]int_fast<N>_t types.
This commit is contained in:
Jeff Johnston
2005-10-06 19:46:21 +00:00
parent 51c8a2133a
commit bc037f3a51
2 changed files with 95 additions and 0 deletions
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4
newlib/ChangeLog
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@@ -1,3 +1,7 @@
2005-10-06 Ralf Corsepius <ralf.corsepius@rtems.org>
* libc/include/stdint.h: Add [u]int_fast<N>_t types.
2005-10-04 Ralf Corsepius <ralf.corsepius@rtems.org>
* libc/include/stdint.h: Move magic to set __have_long* to the

91
newlib/libc/include/stdint.h
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@@ -154,6 +154,73 @@ typedef uint64_t uint_least32_t;
#endif
#endif
/*
* Fastest minimum-width integer types
*
* Assume int to be the fastest type for all types with a width
* less than __INT_MAX__ rsp. INT_MAX
*/
#if __STDINT_EXP(INT_MAX) >= 0x7f
typedef signed int int_fast8_t;
typedef unsigned int uint_fast8_t;
#define __int_fast8_t_defined 1
#endif
#if __STDINT_EXP(INT_MAX) >= 0x7fff
typedef signed int int_fast16_t;
typedef unsigned int uint_fast16_t;
#define __int_fast16_t_defined 1
#endif
#if __STDINT_EXP(INT_MAX) >= 0x7fffffff
typedef signed int int_fast32_t;
typedef unsigned int uint_fast32_t;
#define __int_fast32_t_defined 1
#endif
#if __STDINT_EXP(INT_MAX) > 0x7fffffff
typedef signed int int_fast64_t;
typedef unsigned int uint_fast64_t;
#define __int_fast64_t_defined 1
#endif
/*
* Fall back to [u]int_least<N>_t for [u]int_fast<N>_t types
* not having been defined, yet.
* Leave undefined, if [u]int_least<N>_t should not be available.
*/
#if !__int_fast8_t_defined
#if __int_least8_t_defined
typedef int_least8_t int_fast8_t;
typedef uint_least8_t uint_fast8_t;
#define __int_fast8_t_defined 1
#endif
#endif
#if !__int_fast16_t_defined
#if __int_least16_t_defined
typedef int_least16_t int_fast16_t;
typedef uint_least16_t uint_fast16_t;
#define __int_fast16_t_defined 1
#endif
#endif
#if !__int_fast32_t_defined
#if __int_least32_t_defined
typedef int_least32_t int_fast32_t;
typedef uint_least32_t uint_fast32_t;
#define __int_fast32_t_defined 1
#endif
#endif
#if !__int_fast64_t_defined
#if __int_least64_t_defined
typedef int_least64_t int_fast64_t;
typedef uint_least64_t uint_fast64_t;
#define __int_fast64_t_defined 1
#endif
#endif
/* Greatest-width integer types */
/* Modern GCCs provide __INTMAX_TYPE__ */
#if defined(__INTMAX_TYPE__)
@@ -257,6 +324,30 @@ typedef unsigned long uintptr_t;
#endif
#endif
#if __int_fast8_t_defined
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST8_MAX INT8_MAX
#define UINT_FAST8_MAX UINT8_MAX
#endif
#if __int_fast16_t_defined
#define INT_FAST16_MIN INT16_MIN
#define INT_FAST16_MAX INT16_MAX
#define UINT_FAST16_MAX UINT16_MAX
#endif
#if __int_fast32_t_defined
#define INT_FAST32_MIN INT32_MIN
#define INT_FAST32_MAX INT32_MAX
#define UINT_FAST32_MAX UINT32_MAX
#endif
#if __int_fast64_t_defined
#define INT_FAST64_MIN INT64_MIN
#define INT_FAST64_MAX INT64_MAX
#define UINT_FAST64_MAX UINT64_MAX
#endif
/* This must match size_t in stddef.h, currently long unsigned int */
#define SIZE_MIN (-__STDINT_EXP(LONG_MAX) - 1L)
#define SIZE_MAX __STDINT_EXP(LONG_MAX)