#include <pthread.h>
#include <stdio.h>
int Global;
void *Thread1(void *x) {
Global++;
return NULL;
}
void *Thread2(void *x) {
Global--;
return NULL;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
}
// CHECK: WARNING: ThreadSanitizer: data race