int main(void) { int x; int y = 0; int* reachable; int* dubious; int* leaked; DECLARE_LEAK_COUNTERS; /* we require these longs to have same size as a machine word */ assert(sizeof(long) == sizeof(void*)); /* Error counting */ fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); if (x == 0) { y++; } else { y--; } fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); // Get a baseline, after start-up and also after printf (because Darwin // printf allocates memory the first time it's called!) GET_INITIAL_LEAK_COUNTS; fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); /* Leak checking */ GET_FINAL_LEAK_COUNTS; PRINT_LEAK_COUNTS(stderr); fprintf(stderr, "\n"); fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); leaked = malloc(77); leaked = 0; dubious = malloc(88); dubious += 10; reachable = malloc(99); GET_FINAL_LEAK_COUNTS; PRINT_LEAK_COUNTS(stderr); fprintf(stderr, "\n"); fprintf(stderr, "errors: %d\n", VALGRIND_COUNT_ERRORS); return 0; }
int main(void) { DECLARE_LEAK_COUNTERS; GET_INITIAL_LEAK_COUNTS; // See leak-cases.c for why we do the work in f(). f(); GET_FINAL_LEAK_COUNTS; PRINT_LEAK_COUNTS(stderr); return 0; }
int main() { DECLARE_LEAK_COUNTERS; struct n *volatile c1, *volatile c2; GET_INITIAL_LEAK_COUNTS; /* two simple cycles */ c1 = mkcycle(); c2 = mkcycle(); c1 = c2 = 0; /* one cycle linked to another */ c1 = mkcycle(); c2 = mkcycle(); /* This is to make sure we end up merging cliques; see mc_leakcheck.c */ if (c1 < c2) c2->r = c1; else c1->r = c2; c1 = c2 = 0; /* two linked cycles */ c1 = mkcycle(); c2 = mkcycle(); c1->r = c2; c2->r = c1; c1 = c2 = 0; CLEAR_CALLER_SAVED_REGS; GET_FINAL_LEAK_COUNTS; PRINT_LEAK_COUNTS(stderr); return 0; }
int main() { DECLARE_LEAK_COUNTERS; struct n *volatile c1, *volatile c2; GET_INITIAL_LEAK_COUNTS; c1 = mkcycle(); c2 = mkcycle(); c1 = c2 = 0; c1 = mkcycle(); c2 = mkcycle(); if (c1 < c2) c2->r = c1; else c1->r = c2; c1 = c2 = 0; c1 = mkcycle(); c2 = mkcycle(); c1->r = c2; c2->r = c1; c1 = c2 = 0; CLEAR_CALLER_SAVED_REGS; GET_FINAL_LEAK_COUNTS; PRINT_LEAK_COUNTS(stderr); return 0; }