print array with _Generic

#include <stdio.h>
static void print_array_char(char *, size_t);
static void print_array_int(int *, size_t);
static void print_array_unsigned(unsigned *, size_t);
static void print_array_char(char *a, size_t n) {
    printf("[");
    for (size_t i = 0; i < n; ++i) {
        printf("%s%c", ((i == 0) ? "" : ", "), a[i]);
    }
    puts("]");
}
static void print_array_int(int *a, size_t n) {
    printf("[");
    for (size_t i = 0; i < n; ++i) {
        printf("%s%d", ((i == 0) ? "" : ", "), a[i]);
    }
    puts("]");
}
static void print_array_unsigned(unsigned *a, size_t n) {
    printf("[");
    for (size_t i = 0; i < n; ++i) {
        printf("%s%d", ((i == 0) ? "" : ", "), a[i]);
    }
    puts("]");
}
#define print_array(a, n) _Generic((a) \
        , char *: print_array_char \
        , int *: print_array_int \
        , unsigned *: print_array_unsigned \
        )(a, n)
int main(void) {
    char array_char[] = { 'h', 'e', 'l', 'l', 'o' };
    int array_int[] = { -2, -1, 1, -2 };
    unsigned array_uint[] = { 1, 2, 3 };
    print_array(array_char, sizeof array_char / sizeof array_char[0]);
    print_array(array_int, sizeof array_int / sizeof array_int[0]);
    print_array(array_uint, sizeof array_uint / sizeof array_uint[0]);
}