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Difference between processes and threads

#include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <pthread.h> int x = 2; void* routine() { x += 5; sleep(2); printf("Value of x: %d\n", x); } void* routine2() { sleep(2); printf("Value of x: %d\n", x); } int main(int argc, char* argv[]) { pthread_t t1, t2; if (pthread_create(&t1, NULL, &routine, NULL)) { return 1; } if (pthread_create(&t2, NULL, &routine2, NULL)) { return 2; } if (pthread_join(t1, NULL)) { return 3; } if (pthread_join(t2, NULL)) { return 3; } return 0; }
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Unix Threads in C

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