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| author | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-06-28 17:30:42 -0300 |
|---|---|---|
| committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-10-25 17:03:54 -0200 |
| commit | 6962682ffe5e5f0373047a0b894fee7a774be254 (patch) | |
| tree | e8e3660cf706a62dc9c71972aa2acf165caf5c48 /stdlib/stdlib.h | |
| parent | 78b7adbaea643f2f213bb113e3ec933416a769a8 (diff) | |
Add strfromd, strfromf, and strfroml functions
ISO/IEC TS 18661-1 adds several functions in the strfrom family to stdlib.
This patch adds strfromd, strfromf, and strfroml. This is being done in
preparation for the new floating-point type, float128. The added functions
convert a floating-point value into a string, with configurable format.
Diffstat (limited to 'stdlib/stdlib.h')
| -rw-r--r-- | stdlib/stdlib.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h index f0dc951acf..48f9a9500e 100644 --- a/stdlib/stdlib.h +++ b/stdlib/stdlib.h @@ -21,7 +21,8 @@ #ifndef _STDLIB_H -#include <features.h> +#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION +#include <bits/libc-header-start.h> /* Get size_t, wchar_t and NULL from <stddef.h>. */ #define __need_size_t @@ -178,6 +179,21 @@ extern unsigned long long int strtoull (const char *__restrict __nptr, __END_NAMESPACE_C99 #endif /* ISO C99 or use MISC. */ +/* Convert a floating-point number to a string. */ +#if __GLIBC_USE (IEC_60559_BFP_EXT) +extern int strfromd (char *__dest, size_t __size, const char *__format, + double __f) + __THROW __nonnull ((3)); + +extern int strfromf (char *__dest, size_t __size, const char *__format, + float __f) + __THROW __nonnull ((3)); + +extern int strfroml (char *__dest, size_t __size, const char *__format, + long double __f) + __THROW __nonnull ((3)); +#endif + #ifdef __USE_GNU /* The concept of one static locale per category is not very well |