#include <stdio.h>
#include <math.h>
double modulo4Lua (double x, double y)
{
double m = fmod(x, y);
if ((m != 0.0) && (x*y < 0.0))
return y + m;
else
return m;
}
int main ()
{
printf("%f\n%f\n%f\n%f\n%f\n%f\n%f\n",
modulo4Lua(5.5, 1.0/0.0),
modulo4Lua(-5.5, 1.0/0.0),
modulo4Lua(-4.0, -2.0),
modulo4Lua( 4.0, 3.0),
modulo4Lua(-4.0, 3.0),
modulo4Lua( 4.0, -3.0),
modulo4Lua(-4.0, -3.0)
);
return(0);
}