BSD 4_2 release

[unix-history] / usr / src / usr.lib / libF77 / r_sign.c

/*
*      "@(#)r_sign.c   1.1"
*/

double r_sign(a,b)
float *a, *b;
{
float x;
x = (*a >= 0 ? *a : - *a);
return( *b >= 0 ? x : -x);
}