test.osl

float myfunc (float x)
{
    float y = x*x;
    if (y < 0.25)
        return y;
    printf ("Only should get here if y >= 0.25:  y == %g\n", y);
    return y+100;
}


float func_with_loop (float x)
{
    float y = 1;
    for (int i = 0;  i < 10;  ++i) {
        y += M_PI;
        if (i == 5)
            return i;
    }
    return y;
}


float nest (float x)
{
    float y = x;
    y = func_with_loop (y);
    if (y == 5)
        return y+1;
    y = 100;
    return y;
}



shader test ()
{
    printf ("Testing myfunc(%g):\n", u);
    float z = myfunc (u);
    printf ("result was %g\n", z);

    printf ("\nTesting return from the middle of a loop:\n");
    printf ("func_with_loop(u) = %g\n", func_with_loop(u));

    printf ("\nTesting nested functions:\n");
    printf ("test(u) = %g\n", nest(u));

    printf ("\n\n");
}