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Unix Threads in C

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Get return value from a thread (pthread_join)

#include <stdlib.h> #include <stdio.h> #include <pthread.h> #include <time.h> void* roll_dice() { int value = (rand() % 6) + 1; int* result = malloc(sizeof(int)); *result = value; // printf("%d\n", value); printf("Thread result: %p\n", result); return (void*) result; } int main(int argc, char* argv[]) { int* res; srand(time(NULL)); pthread_t th; if (pthread_create(&th, NULL, &roll_dice, NULL) != 0) { return 1; } if (pthread_join(th, (void**) &res) != 0) { return 2; } printf("Main res: %p\n", res); printf("Result: %d\n", *res); free(res); return 0; }