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1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <assert.h>
4 #include "../memcheck.h"
5 #include "leak.h"
6 
main(void)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