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Add support for testing __STDC_WANT_IEC_60559_TYPES_EXT__

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This macro is defined by TS 18661-3 for supporting the _FloatN and
_FloatNx types, as well as the functions suffixed with fN.

	* bits/libc-header-start.h:
	(__GLIBC_USE_IEC_60559_TYPES_EXT): New macro.
	* include/features.h: Describe __STDC_WANT_IEC_60559_TYPES_EXT__.
	* manual/creature.texi: Likewise.
This commit is contained in:
Paul E. Murphy
2016-07-20 12:14:21 -05:00
committed by Gabriel F. T. Gomes
parent 26265c3bce
commit 4fc12f0eda
4 changed files with 28 additions and 0 deletions
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9
bits/libc-header-start.h
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@@ -59,3 +59,12 @@
#else
# define __GLIBC_USE_IEC_60559_FUNCS_EXT 0
#endif
/* ISO/IEC TS 18661-3:2015 defines the
__STDC_WANT_IEC_60559_TYPES_EXT__ macro. */
#undef __GLIBC_USE_IEC_60559_TYPES_EXT
#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_TYPES_EXT__
# define __GLIBC_USE_IEC_60559_TYPES_EXT 1
#else
# define __GLIBC_USE_IEC_60559_TYPES_EXT 0
#endif