1 #include <stdlib.h> 2 3 // All sizes are divisible by 16 -- no slop. 4 5 int* ignore1(void) 6 { 7 // Allocating/freeing in an ignored function: ignored. 8 int* ignored_x1 = malloc(400); 9 int* ignored_x2 = malloc(400); 10 free(ignored_x2); 11 return ignored_x1; 12 } 13 14 void ignore2(int* x, int* ignored_x) 15 { 16 // Growing/shrinking a non-ignored block in an ignored function: ignored. 17 x = realloc(x, 800); 18 x = realloc(x, 400); 19 20 // Growing/shrinking an ignored block in an ignored function: ignored. 21 ignored_x = realloc(ignored_x, 800); 22 ignored_x = realloc(ignored_x, 400); 23 } 24 25 int main(void) 26 { 27 int* x; 28 int* ignored_x; 29 30 // Not ignored. 31 x = malloc(400); 32 33 // Get an ignored block. 34 ignored_x = ignore1(); 35 36 // Growing/shrinking a non-ignored block in a non-ignored function: 37 // not ignored. 38 x = realloc(x, 800); 39 x = realloc(x, 400); 40 41 // Growing/shrinking an ignored block in a non-ignored function: ignored. 42 ignored_x = realloc(ignored_x, 800); 43 ignored_x = realloc(ignored_x, 400); 44 45 ignore2(x, ignored_x); 46 47 x = realloc(ignored_x, 0); // equivalent to 'free(ignored_x)'. 48 49 return 0; 50 } 51 52
