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- /*
- (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
- See the copyright notice in the ACK home directory, in the file "Copyright".
- */
- /* $Id$ */
- /*
- COMPARE SINGLES (CMF 4)
- */
- #include "FP_types.h"
- #include "get_put.h"
- int
- cmf4(f1,f2)
- SINGLE f1,f2;
- {
- /*
- * return ((f1 < f2) ? 1 : (f1 - f2))
- */
- #define SIGN(x) (((x) < 0) ? -1 : 1)
- int sign1,sign2;
- long l1,l2;
- l1 = get4((char *) &f1);
- l2 = get4((char *) &f2);
- if (l1 == l2) return 0;
- sign1 = SIGN(l1);
- sign2 = SIGN(l2);
- if (sign1 != sign2) {
- if ((l1 & 0x7fffffff) == 0 &&
- (l2 & 0x7fffffff) == 0) return 0;
- return ((sign1 > 0) ? -1 : 1);
- }
- return (sign1 * ((l1 < l2) ? 1 : -1));
- }
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