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40 lines
731 B
C
40 lines
731 B
C
/* 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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#include "fdlibm.h"
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#ifdef __STDC__
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float fdimf(float x, float y)
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#else
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float fdimf(x,y)
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float x;
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float y;
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#endif
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{
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int c = __fpclassifyf(x);
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if (c == FP_NAN) return(x);
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if (__fpclassifyf(y) == FP_NAN) return(y);
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if (c == FP_INFINITE)
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return HUGE_VALF;
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return x > y ? x - y : 0.0;
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}
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#ifdef _DOUBLE_IS_32BITS
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#ifdef __STDC__
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double fdim(double x, double y)
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#else
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double fdim(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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return (double) fdimf((float) x, (float) y);
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}
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#endif /* defined(_DOUBLE_IS_32BITS) */
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