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

void* integer_return(void* arg) {
    return (void*) 1;
}

void* string_return(void* arg) {
    char* string = calloc(4, sizeof(char));

    string[0] = 'c';
    string[1] = 'a';
    string[2] = 't';

    pthread_exit((void*) string);
}

int main(void) {
    pthread_t thread_id_1;
    pthread_t thread_id_2;

    pthread_create(&thread_id_1, NULL, integer_return, NULL);
    pthread_create(&thread_id_2, NULL, string_return, NULL);

    void* thread_return_value;
    pthread_join(thread_id_1, &thread_return_value);
    printf("The first thread returned: %d\n", *(int*) thread_return_value);

    pthread_join(thread_id_2, &thread_return_value);
    printf("The second thread returned: %s\n", (char*) thread_return_value);
}