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[PATCH v3 2/2] Add support for testing __STDC_WANT_IEC_60559_TYPES_EXT__
- From: "Gabriel F. T. Gomes" <gftg at linux dot vnet dot ibm dot com>
- To: libc-alpha at sourceware dot org
- Date: Mon, 8 May 2017 15:22:20 -0300
- Subject: [PATCH v3 2/2] Add support for testing __STDC_WANT_IEC_60559_TYPES_EXT__
- Authentication-results: sourceware.org; auth=none
- References: <alpine.DEB.2.20.1705031134460.9055@digraph.polyomino.org.uk>
From: "Paul E. Murphy" <murphyp@linux.vnet.ibm.com>
Changes since v2:
- Fix year in the comments in bits/libc-header-start.h.
- Add description to include/features.h and manual/creature.texi.
-- 8< --
This macro is defined by TS 18661-3 for supporting the _FloatN and
_FloatNx types, as well as the functions suffixed with fN.
2017-02-23 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
* bits/libc-header-start.h:
(__GLIBC_USE_IEC_60559_TYPES_EXT): New macro.
---
bits/libc-header-start.h | 9 +++++++++
include/features.h | 2 ++
manual/creature.texi | 9 +++++++++
3 files changed, 20 insertions(+)
diff --git a/bits/libc-header-start.h b/bits/libc-header-start.h
index 860225d..0ce16e2 100644
--- a/bits/libc-header-start.h
+++ b/bits/libc-header-start.h
@@ -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
diff --git a/include/features.h b/include/features.h
index 7de4089..972cbd2 100644
--- a/include/features.h
+++ b/include/features.h
@@ -30,6 +30,8 @@
Extensions to ISO C11 from TS 18661-1:2014.
__STDC_WANT_IEC_60559_FUNCS_EXT__
Extensions to ISO C11 from TS 18661-4:2015.
+ __STDC_WANT_IEC_60559_TYPES_EXT__
+ Extensions to ISO C11 from TS 18661-3:2015.
_POSIX_SOURCE IEEE Std 1003.1.
_POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
diff --git a/manual/creature.texi b/manual/creature.texi
index 5048886..23218bb 100644
--- a/manual/creature.texi
+++ b/manual/creature.texi
@@ -192,6 +192,15 @@ enabled. Only some of the features from this TS are supported by
@end defvr
@comment (none)
+@comment ISO
+@defvr Macro __STDC_WANT_IEC_60559_TYPES_EXT__
+If you define this macro, features from ISO/IEC TS 18661-3:2015
+(Floating-point extensions for C: Interchange and extended types) are
+enabled. Only some of the features from this TS are supported by
+@theglibc{}.
+@end defvr
+
+@comment (none)
@comment GNU
@defvr Macro _GNU_SOURCE
If you define this macro, everything is included: @w{ISO C89}, @w{ISO
--
2.4.11