Smack: add the execute lable to ldconfig

[platform/upstream/glibc.git] / math / w_acos.c

diff --git a/math/w_acos.c b/math/w_acos.c
index f4e6e3c..23e45f9 100644 (file)
--- a/math/w_acos.c
+++ b/math/w_acos.c
@@ -1,45 +1,39 @@
-/* @(#)w_acos.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
+/* Copyright (C) 2011-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
 
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: w_acos.c,v 1.6 1995/05/10 20:48:26 jtc Exp $";
-#endif
+   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.
 
-/*
- * wrap_acos(x)
- */
+   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/>.  */
 
+#include <fenv.h>
 #include <math.h>
-#include "math_private.h"
+#include <math_private.h>
 
 
-#ifdef __STDC__
-       double __acos(double x)         /* wrapper acos */
-#else
-       double __acos(x)                        /* wrapper acos */
-       double x;
-#endif
+/* wrapper acos */
+double
+__acos (double x)
 {
-#ifdef _IEEE_LIBM
-       return __ieee754_acos(x);
-#else
-       double z;
-       z = __ieee754_acos(x);
-       if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
-       if(fabs(x)>1.0) {
-               return __kernel_standard(x,x,1); /* acos(|x|>1) */
-       } else
-           return z;
-#endif
+  if (__builtin_expect (isgreater (fabs (x), 1.0), 0)
+      && _LIB_VERSION != _IEEE_)
+    {
+      /* acos(|x|>1) */
+      __feraiseexcept (FE_INVALID);
+      return __kernel_standard (x, x, 1);
+    }
+
+  return __ieee754_acos (x);
 }
 weak_alias (__acos, acos)
 #ifdef NO_LONG_DOUBLE