ianlevesque · October 22, 2009 06:25
diff --git a/fast_sqrt.c b/fast_sqrt.c
 float InvSqrt (float x)
 {
    float xhalf = 0.5f*x;
    int i = *(int*)&x;
    i = 0x5f3759df - (i>>1);
    x = *(float*)&i;
    return x*(1.5f - xhalf*x*x);
 }
	float InvSqrt (float x)
	{
	float xhalf = 0.5f*x;
	int i = (int)&x;
	i = 0x5f3759df - (i>>1);
	x = (float)&i;
	return x(1.5f - xhalfx*x);
	}