| /* @(#)s_signif.c 5.1 93/09/24 */ |
| /* |
| * ==================================================== |
| * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
| * |
| * Developed at SunPro, a Sun Microsystems, Inc. business. |
| * Permission to use, copy, modify, and distribute this |
| * software is freely granted, provided that this notice |
| * is preserved. |
| * ==================================================== |
| */ |
| |
| #include <sys/cdefs.h> |
| __FBSDID("$FreeBSD$"); |
| |
| /* |
| * significand(x) computes just |
| * scalb(x, (double) -ilogb(x)), |
| * for exercising the fraction-part(F) IEEE 754-1985 test vector. |
| */ |
| |
| #include "math.h" |
| #include "math_private.h" |
| |
| double |
| significand(double x) |
| { |
| return __ieee754_scalb(x,(double) -ilogb(x)); |
| } |
