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/* Copyright (C) 2002 by Red Hat, Incorporated. All rights reserved.
*
* Permission to use, copy, modify, and distribute this software
* is freely granted, provided that this notice is preserved.
*/
/*
FUNCTION
<<fmax>>, <<fmaxf>>---maximum
INDEX
fmax
INDEX
fmaxf
SYNOPSIS
#include <math.h>
double fmax(double <[x]>, double <[y]>);
float fmaxf(float <[x]>, float <[y]>);
DESCRIPTION
The <<fmax>> functions determine the maximum numeric value of their arguments.
NaN arguments are treated as missing data: if one argument is a NaN and the
other numeric, then the <<fmax>> functions choose the numeric value.
RETURNS
The <<fmax>> functions return the maximum numeric value of their arguments.
PORTABILITY
ANSI C, POSIX.
*/
#include "fdlibm.h"
#ifdef _NEED_FLOAT64
__float64
fmax64(__float64 x, __float64 y)
{
if (issignaling(x) || issignaling(y))
return x + y;
if (isnan(x))
return y;
if (isnan(y))
return x;
return x > y ? x : y;
}
_MATH_ALIAS_d_dd(fmax)
#endif /* _NEED_FLOAT64 */
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