#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

const int NUMBER_FLOAT = 1;
const int NUMBER_INT   = 2;

typedef union {
    int   as_int;
    float as_float;
} Number;

void print_number(Number n, int number_type) {
    if(number_type == NUMBER_INT) {
        printf("n: %d\n", n.as_int);
    }
    else {
        assert(number_type == NUMBER_FLOAT);  // HIGHLY RECOMMENDED!!!!
        printf("n: %.060f\n", n.as_float);
    }
    // else if(number_type == NUMBER_FLOAT) {
    //     printf("n: %.060f\n", n.as_float);
    // }
    // else {
    //     assert(false);   // UNKNOWN NUMBER TYPE
    // }
}

int main(int argc, char* argv[]) {
    Number n1 = { .as_float = 0.25 };
    Number n2 = { .as_int   = 1024 };
    print_number(n1);
    print_number(n2);
    return EXIT_SUCCESS;
}
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