#include <stdio.h>
#ifndef NULL
#define NULL (void *) 0
#endif

int mreturn(int *i1, double *d1, float *f1);

int main(int argc, char const *argv[])
{
    int ival = 9;
    double dval = 12.0;
    float fval = 12.9f;
    printf("%7d %7.2f %7.2f\n", ival, dval, fval);
    mreturn(&ival, &dval, &fval);
    printf("%7d %7.2f %7.2f\n", ival, dval, fval);
    return 0;
}

int mreturn(int *i1, double* d1, float* f1) {
    *i1 = *i1 - 5;
    *d1 = *i1 / *d1;
    *f1 = *d1 * *f1;
}