API tools faq
paste
Advertisement
AneMou

C - Realloc Memory Leak (corrected)

AneMou
May 16th, 2024 (edited)
72
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C 1.12 KB | Source Code | 0 0
raw download clone embed print report
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. /* ... */
  5.  
  6. // we now want our addToList function to return something to handle errors
  7. int addToList(struct list *myList, int item);
  8.  
  9. /* ... */
  10.  
  11.     // Inside the main function
  12.  
  13.     // Add any number of items to the list specified by the amount variable
  14.     amount = 44;
  15.     for (int i = 0; i < amount; i++) {
  16.         if ( addToList(&myList, i + 1) ) {
  17.             free(myList.data);
  18.             myList.data = NULL;
  19.             return -1;
  20.         }
  21.     }
  22.  
  23. /* ... */
  24.  
  25. // This function adds an item to a list
  26. // if an error occured the functions returns 1, else 0
  27. int addToList(struct list *myList, int item) {
  28.    
  29.     // If the list is full then resize the memory to fit 10 more items
  30.     if (myList->numItems == myList->size) {
  31.         myList->size += 10;
  32.         int *temp = NULL;
  33.         temp = realloc( myList->data, myList->size * sizeof(int) );
  34.         if (NULL == temp) {
  35.             perror("Failed to reallocate memory, the program should stop");
  36.             return -1;
  37.         }
  38.         myList->data = temp;
  39.         temp = NULL;
  40.     }
  41.    
  42.     /* ... */
  43.     return 0;
  44.  
  45. }
Tags: memory leak realloc
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!