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

// process each element in the array using int_mapper
void mutate_int_array(int* array, int size, 
        int (*int_mapper)(int)) {
    for(int i = 0; i < size; i++) {
        array[i] = int_mapper(array[i]);
    }
}

int add_five(int n) {
    return n + 5;
}

int multiply_by_three(int n) {
    return n * 3;
}
void print_int_array(int const* array, int size) {
    printf("[");
    for(int i = 0; i < size; i++) {
        printf("%d, ", array[i]);
    }
    printf("]\n");
}

int main(int argc, char* argv[]) {
    int numbers[5] = {1, 2, 3, 4, 5};
    print_int_array(numbers, 5);
    mutate_int_array(numbers, 5, add_five);
    print_int_array(numbers, 5);
    mutate_int_array(numbers, 5, multiply_by_three);
    print_int_array(numbers, 5);

    return EXIT_SUCCESS;
}
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