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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libm/] [w_acos.c] - Blame information for rev 1765

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Line No. Rev Author Line
1 1325 phoenix
/* @(#)w_acos.c 5.1 93/09/24 */
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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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 * Developed at SunPro, a Sun Microsystems, Inc. business.
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 * Permission to use, copy, modify, and distribute this
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 * software is freely granted, provided that this notice
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 * is preserved.
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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_acos.c,v 1.6 1995/05/10 20:48:26 jtc Exp $";
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#endif
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/*
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 * wrap_acos(x)
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 */
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#include "math.h"
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#include "math_private.h"
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#ifdef __STDC__
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        double acos(double x)           /* wrapper acos */
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#else
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        double acos(x)                  /* wrapper acos */
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        double x;
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#endif
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{
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#ifdef _IEEE_LIBM
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        return __ieee754_acos(x);
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#else
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        double z;
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        z = __ieee754_acos(x);
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        if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
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        if(fabs(x)>1.0) {
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                return __kernel_standard(x,x,1); /* acos(|x|>1) */
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        } else
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            return z;
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#endif
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}

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