Namaran

three_way_cmp.c

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

int cmp_int(const void *a, const void *b) {
    int x = *(const int *)a;
    int y = *(const int *)b;
    return (x > y) - (x < y);
}

int main(void) {
    int values[] = {5, -3, 5, 0, 2, -3};
    qsort(values, 6, sizeof(int), cmp_int);
    for (int i = 0; i < 6; i++)
        printf("%s%d", i ? " " : "", values[i]);
    printf("\n");
}