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[pf3gnuchains/gcc-fork.git] / gcc / ginclude / float.h

diff --git a/gcc/ginclude/float.h b/gcc/ginclude/float.h
index 9969f1c..2954cc4 100644 (file)
--- a/gcc/ginclude/float.h
+++ b/gcc/ginclude/float.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 2002, 2007, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011
+   Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -157,6 +158,45 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #endif /* C99 */
 
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+/* Versions of DECIMAL_DIG for each floating-point type.  */
+#undef FLT_DECIMAL_DIG
+#undef DBL_DECIMAL_DIG
+#undef LDBL_DECIMAL_DIG
+#define FLT_DECIMAL_DIG                __FLT_DECIMAL_DIG__
+#define DBL_DECIMAL_DIG                __DBL_DECIMAL_DIG__
+#define LDBL_DECIMAL_DIG       __DECIMAL_DIG__
+
+/* Whether types support subnormal numbers.  */
+#undef FLT_HAS_SUBNORM
+#undef DBL_HAS_SUBNORM
+#undef LDBL_HAS_SUBNORM
+#define FLT_HAS_SUBNORM                __FLT_HAS_DENORM__
+#define DBL_HAS_SUBNORM                __DBL_HAS_DENORM__
+#define LDBL_HAS_SUBNORM       __LDBL_HAS_DENORM__
+
+/* Minimum positive values, including subnormals.  */
+#undef FLT_TRUE_MIN
+#undef DBL_TRUE_MIN
+#undef LDBL_TRUE_MIN
+#if __FLT_HAS_DENORM__
+#define FLT_TRUE_MIN   __FLT_DENORM_MIN__
+#else
+#define FLT_TRUE_MIN   __FLT_MIN__
+#endif
+#if __DBL_HAS_DENORM__
+#define DBL_TRUE_MIN   __DBL_DENORM_MIN__
+#else
+#define DBL_TRUE_MIN   __DBL_MIN__
+#endif
+#if __LDBL_HAS_DENORM__
+#define LDBL_TRUE_MIN  __LDBL_DENORM_MIN__
+#else
+#define LDBL_TRUE_MIN  __LDBL_MIN__
+#endif
+
+#endif /* C11 */
+
 #ifdef __STDC_WANT_DEC_FP__
 /* Draft Technical Report 24732, extension for decimal floating-point
    arithmetic: Characteristic of decimal floating types <float.h>.  */