aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/x86
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2012-05-30 15:42:28 -0700
committerH.J. Lu <hjl.tools@gmail.com>2012-05-30 15:42:28 -0700
commit7dc00e0d3c1f94b00ee49052c65da50f0795c8a2 (patch)
tree251bfc1251f76d1b25bcb6c43c4a749e300043d8 /sysdeps/x86
parent03277f8fe13d0dde136ee98be5dc54362ec9af17 (diff)
downloadglibc-7dc00e0d3c1f94b00ee49052c65da50f0795c8a2.tar
glibc-7dc00e0d3c1f94b00ee49052c65da50f0795c8a2.tar.gz
glibc-7dc00e0d3c1f94b00ee49052c65da50f0795c8a2.tar.bz2
glibc-7dc00e0d3c1f94b00ee49052c65da50f0795c8a2.zip
Use x86_64 bits/mathdef.h for i386/x86_64
Diffstat (limited to 'sysdeps/x86')
-rw-r--r--sysdeps/x86/bits/mathdef.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/x86/bits/mathdef.h b/sysdeps/x86/bits/mathdef.h
new file mode 100644
index 0000000000..c202ad5928
--- /dev/null
+++ b/sysdeps/x86/bits/mathdef.h
@@ -0,0 +1,59 @@
+/* Copyright (C) 2001-2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#if !defined _MATH_H && !defined _COMPLEX_H
+# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+# define _MATH_H_MATHDEF 1
+
+# if defined __x86_64__ || (defined __FLT_EVAL_METHOD__ && __FLT_EVAL_METHOD__ == 0)
+/* The x86-64 architecture computes values with the precission of the
+ used type. Similarly for -m32 -mfpmath=sse. */
+typedef float float_t; /* `float' expressions are evaluated as `float'. */
+typedef double double_t; /* `double' expressions are evaluated
+ as `double'. */
+# else
+/* The ix87 FPUs evaluate all values in the 80 bit floating-point format
+ which is also available for the user as `long double'. Therefore we
+ define: */
+typedef long double float_t; /* `float' expressions are evaluated as
+ `long double'. */
+typedef long double double_t; /* `double' expressions are evaluated as
+ `long double'. */
+# endif
+
+/* The values returned by `ilogb' for 0 and NaN respectively. */
+# define FP_ILOGB0 (-2147483647 - 1)
+# define FP_ILOGBNAN (-2147483647 - 1)
+
+/* The GCC 4.6 compiler will define __FP_FAST_FMA{,F,L} if the fma{,f,l}
+ builtins are supported. */
+# if __FP_FAST_FMA
+# define FP_FAST_FMA 1
+# endif
+
+# if __FP_FAST_FMAF
+# define FP_FAST_FMAF 1
+# endif
+
+# if __FP_FAST_FMAL
+# define FP_FAST_FMAL 1
+# endif
+
+#endif /* ISO C99 */