boost_1_45_0/libs/spirit/example/qi/mini_c_samples/1.mini

/* My first mini program */

int pow2(n)
{
    int a = 2;
    int i = 1;
    while (i < n)
    {
        a = a * 2;
        i = i + 1;
    }
    return a;
}

int main()
{
    return pow2(10);
}