Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | * | |
6 | * @(#)d_sign.c 5.1 %G% | |
7 | */ | |
8 | ||
9 | double d_sign(a,b) | |
10 | double *a, *b; | |
11 | { | |
12 | double x; | |
13 | x = (*a >= 0 ? *a : - *a); | |
14 | return( *b >= 0 ? x : -x); | |
15 | } |