From 0ac5ae2335292908f39031b1ea9fe8edce433c0f Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@gmail.com>
Date: Wed, 12 Oct 2011 11:27:51 -0400
Subject: Optimize libm

libm is now somewhat integrated with gcc's -ffinite-math-only option
and lots of the wrapper functions have been optimized.
---
 math/math.h | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

(limited to 'math/math.h')

diff --git a/math/math.h b/math/math.h
index aeb54d9..8b98ff3 100644
--- a/math/math.h
+++ b/math/math.h
@@ -1,5 +1,5 @@
 /* Declarations for math functions.
-   Copyright (C) 1991-1993, 1995-1999, 2001, 2002, 2004, 2006, 2009
+   Copyright (C) 1991-1993, 1995-1999, 2001, 2002, 2004, 2006, 2009, 2011
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -64,10 +64,10 @@ __BEGIN_DECLS
 #define __MATHDECL_1(type, function,suffix, args) \
   extern type __MATH_PRECNAME(function,suffix) args __THROW
 
-#define _Mdouble_ 		double
+#define _Mdouble_		double
 #define __MATH_PRECNAME(name,r)	__CONCAT(name,r)
-# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
-# define _Mdouble_END_NAMESPACE   __END_NAMESPACE_STD
+#define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
+#define _Mdouble_END_NAMESPACE   __END_NAMESPACE_STD
 #include <bits/mathcalls.h>
 #undef	_Mdouble_
 #undef _Mdouble_BEGIN_NAMESPACE
@@ -83,7 +83,7 @@ __BEGIN_DECLS
 # ifndef _Mfloat_
 #  define _Mfloat_		float
 # endif
-# define _Mdouble_ 		_Mfloat_
+# define _Mdouble_		_Mfloat_
 # ifdef __STDC__
 #  define __MATH_PRECNAME(name,r) name##f##r
 # else
@@ -130,7 +130,7 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #  ifndef _Mlong_double_
 #   define _Mlong_double_	long double
 #  endif
-#  define _Mdouble_ 		_Mlong_double_
+#  define _Mdouble_		_Mlong_double_
 #  ifdef __STDC__
 #   define __MATH_PRECNAME(name,r) name##l##r
 #  else
@@ -138,10 +138,11 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #  endif
 #  define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99
 #  define _Mdouble_END_NAMESPACE   __END_NAMESPACE_C99
+#  define __MATH_DECLARE_LDOUBLE   1
 #  include <bits/mathcalls.h>
 #  undef _Mdouble_
-# undef _Mdouble_BEGIN_NAMESPACE
-# undef _Mdouble_END_NAMESPACE
+#  undef _Mdouble_BEGIN_NAMESPACE
+#  undef _Mdouble_END_NAMESPACE
 #  undef __MATH_PRECNAME
 
 # endif /* __STDC__ || __GNUC__ */
@@ -416,6 +417,12 @@ extern int matherr (struct exception *__exc);
 # include <bits/mathinline.h>
 #endif
 
+/* Define special entry points to use when the compiler got told to
+   only expect finite results.  */
+#if defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0
+# include <bits/math-finite.h>
+#endif
+
 #ifdef __USE_ISOC99
 /* If we've still got undefined comparison macros, provide defaults.  */
 
-- 
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