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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libm/] [common/] [s_fmax.c] - Blame information for rev 207

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1 207 jeremybenn
/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
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 *
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 * Permission to use, copy, modify, and distribute this software
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 * is freely granted, provided that this notice is preserved.
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 */
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/*
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FUNCTION
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<<fmax>>, <<fmaxf>>--maximum
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INDEX
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        fmax
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INDEX
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        fmaxf
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ANSI_SYNOPSIS
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        #include <math.h>
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        double fmax(double <[x]>, double <[y]>);
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        float fmaxf(float <[x]>, float <[y]>);
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DESCRIPTION
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The <<fmax>> functions determine the maximum numeric value of their arguments.
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NaN arguments are treated as missing data:  if one argument is a NaN and the
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other numeric, then the <<fmax>> functions choose the numeric value.
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RETURNS
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The <<fmax>> functions return the maximum numeric value of their arguments.
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PORTABILITY
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ANSI C, POSIX.
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*/
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#include "fdlibm.h"
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#ifndef _DOUBLE_IS_32BITS
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#ifdef __STDC__
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        double fmax(double x, double y)
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#else
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        double fmax(x,y)
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        double x;
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        double y;
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#endif
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{
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  if (__fpclassifyd(x) == FP_NAN)
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    return y;
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  if (__fpclassifyd(y) == FP_NAN)
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    return x;
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  return x > y ? x : y;
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}
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#endif /* _DOUBLE_IS_32BITS */

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