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| author | Jeff Johnston <jjohnstn@redhat.com> | 2005-10-06 19:46:21 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2005-10-06 19:46:21 +0000 |
| commit | bc037f3a51648667cd368e511a24f8a11eaa9be9 (patch) | |
| tree | f57932e15a4119d3ead939d1d5ee0b9cf0252b52 | |
| parent | 51c8a2133a57aaf8fdf7bee04df12cb08f8b76bd (diff) | |
| download | cygnal-bc037f3a51648667cd368e511a24f8a11eaa9be9.tar.gz cygnal-bc037f3a51648667cd368e511a24f8a11eaa9be9.tar.bz2 cygnal-bc037f3a51648667cd368e511a24f8a11eaa9be9.zip | |
2005-10-06 Ralf Corsepius <ralf.corsepius@rtems.org>
* libc/include/stdint.h: Add [u]int_fast<N>_t types.
| -rw-r--r-- | newlib/ChangeLog | 4 | ||||
| -rw-r--r-- | newlib/libc/include/stdint.h | 91 |
2 files changed, 95 insertions, 0 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 90ed463ac..47ebb843e 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -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 diff --git a/newlib/libc/include/stdint.h b/newlib/libc/include/stdint.h index 59be0eb6c..29bb8c5f8 100644 --- a/newlib/libc/include/stdint.h +++ b/newlib/libc/include/stdint.h @@ -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) |