minnie.tuhs.org/unixen.tar/unixen/PDP-11/Trees/V7/usr/src/libF77/d_sign.c

C/C++ Source or Header | 1979-01-10 | 102 b | 8 lines

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