C - return multiple (int) values

gistfile1.c

/*  Output multiple (integer) values
    defined in a function
    to main function.

    Based on solution #2 of accepted answer in this Stack Overflow thread:
    https://stackoverflow.com/questions/2620146/
    how-do-i-return-multiple-values-from-a-function-in-c
*/

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

void getValues(int* a, int* b) {
    assert(a);
    assert(b);
    *a = 1;
    *b = 2;
}

int main() {
    int a, b;
    getValues(&a, &b);
    printf("a is %d\nb is %d\n", a, b);
}