Selection sort program in C

sel_sort.c

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

typedef int T;

T data[] = { 2, 9, 4, 8, 5, 6, 1 };

const int N  = sizeof(data)/sizeof(T);

void ssort(int (* comp)(int, int), int a[]) {
    for (int k = 1; k < N; k++) {
        for (int i = 0; i < k; i++) {
            if (comp(a[i], a[k]) > 0) {
                int tmp = a[i];
                a[i] = a[k];
                a[k] = tmp;
            }
        }
    }
}

int compareTo(T x, T y) {
    return y - x;
}

int main(int argc, char *argv[]) {
    ssort(compareTo, data);
    for (int i = 0; i < N; i++) {
        printf("%d\n", data[i]);
    }
	return 0;
}