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float128: Add strfromf128

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Add strfromf128 to stdlib when _Float128 support is enabled.

	* stdio-common/printf-parsemb.c (__parse_one_specmb): Initialize
	spec->info.is_binary128 to zero.
	* stdio-common/printf.h (printf_info): Add new member is_binary128
	to indicate that the number being converted to string is compatible
	with the IEC 60559 binary128 format.
	* stdio-common/printf_fp.c (__printf_fp_l): Add code to deal with
	_Float128 numbers.
	* stdio-common/printf_fphex.c: Include ieee754_float128.h and
	ldbl-128/printf_fphex_macros.h
	(__printf_fphex): Add code to deal with _Float128 numbers.
	* stdio-common/printf_size.c (__printf_size): Likewise.
	* stdio-common/vfprintf.c (process_arg): Initialize member
	info.is_binary128 to zero.
	* stdlib/fpioconst.h (FLT128_MAX_10_EXP_LOG): New macro.
	* stdlib/stdlib.h: Include bits/floatn.h for _Float128 support.
	(strfromf128): New declaration.
	* stdlib/strfrom-skeleton.c (STRFROM): Set member info.is_binary128
	to one.
	* sysdeps/ieee754/float128/Makefile: Add strfromf128.
	* sysdeps/ieee754/float128/Versions: Likewise.
	* sysdeps/ieee754/float128/strfromf128.c: New file.
This commit is contained in:
Gabriel F. T. Gomes
2016-11-03 12:37:08 -02:00
parent 2bc646c9e9
commit cf2046ec7d
13 changed files with 173 additions and 8 deletions
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9
stdlib/stdlib.h
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@ -51,6 +51,9 @@ __BEGIN_DECLS
# endif
#endif /* X/Open or XPG7 and <sys/wait.h> not included. */
/* _FloatN API tests for enablement. */
#include <bits/floatn.h>
/* Returned by `div'. */
typedef struct
{
@ -175,6 +178,12 @@ extern int strfroml (char *__dest, size_t __size, const char *__format,
__THROW __nonnull ((3));
#endif
#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
extern int strfromf128 (char *__dest, size_t __size, const char * __format,
_Float128 __f)
__THROW __nonnull ((3));
#endif
#ifdef __USE_GNU
/* The concept of one static locale per category is not very well