ack/lang/fortran/lib/libF77/r_sign.c
1991-10-07 16:59:33 +00:00

10 lines
118 B
C

#include "f2c.h"
double r_sign(a,b)
real *a, *b;
{
double x;
x = (*a >= 0 ? *a : - *a);
return( *b >= 0 ? x : -x);
}