source: trunk/libs/newlib/src/newlib/libm/common/s_fmin.c @ 503

/* 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
<<fmin>>, <<fminf>>---minimum
INDEX
        fmin
INDEX
        fminf

SYNOPSIS
        #include <math.h>
        double fmin(double <[x]>, double <[y]>);
        float fminf(float <[x]>, float <[y]>);

DESCRIPTION
The <<fmin>> functions determine the minimum numeric value of their arguments.
NaN arguments are treated as missing data:  if one argument is a NaN and the
other numeric, then the <<fmin>> functions choose the numeric value.

RETURNS
The <<fmin>> functions return the minimum numeric value of their arguments.

PORTABILITY
ANSI C, POSIX.

*/

#include "fdlibm.h"

#ifndef _DOUBLE_IS_32BITS

#ifdef __STDC__
        double fmin(double x, double y)
#else
        double fmin(x,y)
        double x;
        double y;
#endif
{
  if (__fpclassifyd(x) == FP_NAN)
    return y;
  if (__fpclassifyd(y) == FP_NAN)
    return x;
  
  return x < y ? x : y;
}

#endif /* _DOUBLE_IS_32BITS */