Add HUGE_VAL macros for more _FloatN, _FloatNx types.

This patch continues the preparation for additional _FloatN / _FloatNx
type support by adding appropriately conditional definitions of
HUGE_VAL_* macros, corresponding to the HUGE_VAL_F128 definition
already present.

Tested for x86_64.

	* math/math.h [__HAVE_FLOAT16 && __GLIBC_USE
	(IEC_60559_TYPES_EXT)] (HUGE_VAL_F16): New macro.
	[__HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(HUGE_VAL_F32): Likewise.
	[__HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(HUGE_VAL_F64): Likewise.
	[__HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(HUGE_VAL_F32X): Likewise.
	[__HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(HUGE_VAL_F64X): Likewise.
	[__HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
	(HUGE_VAL_F128X): Likewise.

diff --git a/ChangeLog b/ChangeLog
index 6ecf33e..0f9a0fd 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,18 @@
+2017-10-26  Joseph Myers  <joseph@codesourcery.com>
+
+       * math/math.h [__HAVE_FLOAT16 && __GLIBC_USE
+       (IEC_60559_TYPES_EXT)] (HUGE_VAL_F16): New macro.
+       [__HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
+       (HUGE_VAL_F32): Likewise.
+       [__HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)]
+       (HUGE_VAL_F64): Likewise.
+       [__HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
+       (HUGE_VAL_F32X): Likewise.
+       [__HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
+       (HUGE_VAL_F64X): Likewise.
+       [__HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)]
+       (HUGE_VAL_F128X): Likewise.
+
 2017-10-26  Thierry Vignaud <thierry.vignaud@gmail.com>
 
        * localedata/locales/br_FR (LC_IDENTIFICATON): Add

diff --git a/math/math.h b/math/math.h
index 5ad8156..4affd2a 100644 (file)
--- a/math/math.h
+++ b/math/math.h
@@ -63,9 +63,27 @@ __BEGIN_DECLS
 #  define HUGE_VALL 1e10000L
 # endif
 #endif
+#if __HAVE_FLOAT16 && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define HUGE_VAL_F16 (__builtin_huge_valf16 ())
+#endif
+#if __HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define HUGE_VAL_F32 (__builtin_huge_valf32 ())
+#endif
+#if __HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define HUGE_VAL_F64 (__builtin_huge_valf64 ())
+#endif
 #if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
 # define HUGE_VAL_F128 (__builtin_huge_valf128 ())
 #endif
+#if __HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define HUGE_VAL_F32X (__builtin_huge_valf32x ())
+#endif
+#if __HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define HUGE_VAL_F64X (__builtin_huge_valf64x ())
+#endif
+#if __HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define HUGE_VAL_F128X (__builtin_huge_valf128x ())
+#endif
 
 #ifdef __USE_ISOC99
 /* IEEE positive infinity.  */