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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libm/] [common/] [s_fmax.c] - Rev 262
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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 ANSI_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" #ifndef _DOUBLE_IS_32BITS #ifdef __STDC__ double fmax(double x, double y) #else double fmax(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 */
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