#include <stdio.h>

typedef int fixed;
#define FIXD (sizeof(fixed)*4)

fixed mpy(fixed a, fixed b) {
    return (fixed) (((long)a * (long)b) >> FIXD);
}

fixed div(fixed a, fixed b) {
    return (fixed) (((long)a << FIXD) / b);
}

fixed add(fixed a, fixed b) {
    return a + b;
}

fixed sub(fixed a, fixed b)  {
    return a - b;
}

fixed fromdouble(double a) {
    return (fixed) (a * (long)(1 << FIXD));
}

double todouble(fixed a) {
    return (double)a / (long)(1 << FIXD);
}

int main( int argc, char *argv[] ) {

    double af = 1.0f;
    fixed a = fromdouble(af);
    double bf = 2.0f;
    fixed b = fromdouble(bf);

    fixed c = div(a,b);
    c = div(c,b);
    double cf = todouble(c);

    printf("%f\n",cf);

    printf("%f\n",todouble(1));

	return 0;
}