aligned_vs_unaligned_race.cc [plain text]
#include <pthread.h>
#include <stdio.h>
#include <stdint.h>
uint64_t Global[2];
void *Thread1(void *x) {
Global[1]++;
return NULL;
}
void *Thread2(void *x) {
char *p1 = reinterpret_cast<char *>(&Global[0]);
uint64_t *p4 = reinterpret_cast<uint64_t *>(p1 + 1);
(*p4)++;
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);
printf("Pass\n");
return 0;
}