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  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2012-02-08 01:58:09 UTC
  • mfrom: (1.5.3) (288.1.12 precise)
  • Revision ID: package-import@ubuntu.com-20120208015809-ulscst7uteq3e22z
Tags: 2.15~pre6-0ubuntu10
Merge from Debian (r5151, 2.13-26).

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math/w_cosh.c
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/* @(#)w_cosh.c 5.1 93/09/24 */
 
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/* Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011 */
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/*
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 * ====================================================
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 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 * ====================================================
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 */
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: w_cosh.c,v 1.6 1995/05/10 20:48:47 jtc Exp $";
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#endif
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/*
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 * wrapper cosh(x)
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 */
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#include <math.h>
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#include "math_private.h"
 
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#include <math_private.h>
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#ifdef __STDC__
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        double __cosh(double x)         /* wrapper cosh */
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#else
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        double __cosh(x)                        /* wrapper cosh */
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        double x;
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#endif
 
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double
 
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__cosh (double x)
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{
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#ifdef _IEEE_LIBM
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        return __ieee754_cosh(x);
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#else
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        double z;
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        z = __ieee754_cosh(x);
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        if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
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        if(!__finite(z) && __finite(x)) {
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                return __kernel_standard(x,x,5); /* cosh overflow */
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        } else
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            return z;
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#endif
 
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        double z = __ieee754_cosh (x);
 
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        if (__builtin_expect (!__finite (z), 0) && __finite (x)
 
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            && _LIB_VERSION != _IEEE_)
 
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                return __kernel_standard (x, x, 5); /* cosh overflow */
 
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        return z;
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}
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weak_alias (__cosh, cosh)
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#ifdef NO_LONG_DOUBLE