1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <assert.h> 4 #include "../memcheck.h" 5 #include "leak.h" 6 7 int main(void) 8 { 9 int x; 10 int y = 0; 11 int* reachable __attribute__((unused)); 12 int* dubious; 13 int* leaked __attribute__((unused)); 14 DECLARE_LEAK_COUNTERS; 15 16 /* we require these longs to have same size as a machine word */ 17 assert(sizeof(long) == sizeof(void*)); 18 19 /* Error counting */ 20 fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); 21 22 if (x == 0) { 23 y++; 24 } else { 25 y--; 26 } 27 28 fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); 29 30 // Get a baseline, after start-up and also after printf (because Darwin 31 // printf allocates memory the first time it's called!) 32 GET_INITIAL_LEAK_COUNTS; 33 34 fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); 35 36 /* Leak checking */ 37 GET_FINAL_LEAK_COUNTS; 38 PRINT_LEAK_COUNTS(stderr); 39 fprintf(stderr, "\n"); 40 41 fprintf(stderr, "errors: %d\n\n", VALGRIND_COUNT_ERRORS); 42 43 leaked = malloc(77); 44 leaked = 0; 45 46 dubious = malloc(88); 47 dubious += 10; 48 49 reachable = malloc(99); 50 51 GET_FINAL_LEAK_COUNTS; 52 PRINT_LEAK_COUNTS(stderr); 53 fprintf(stderr, "\n"); 54 55 fprintf(stderr, "errors: %d\n", VALGRIND_COUNT_ERRORS); 56 57 return 0; 58 } 59
