37 lines
656 B
C
37 lines
656 B
C
/*
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(c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
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See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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/*
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COMPARE DOUBLES
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*/
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#include "FP_types.h"
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#include "get_put.h"
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short
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cmf4(f1,f2)
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_float f1,f2;
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{
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/*
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* return ((f1 < f2) ? 1 : (f1 - f2))
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*/
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#define SIGN(x) (((x) < 0) ? -1 : 1)
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int sign1,sign2;
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long l1,l2;
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l1 = get4((char *) &f1);
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l2 = get4((char *) &f2);
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if (l1 == l2) return 0;
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sign1 = SIGN(l1);
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sign2 = SIGN(l2);
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if (sign1 != sign2)
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return ((sign1 > 0) ? -1 : 1);
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return (sign1 * ((l1 < l2) ? 1 : -1));
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}
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