Synopsis

Memory allocated with malloc deallocated using delete.

Enabled by default

Yes

Severity/Certainty

High/High

Full description

Memory allocated with malloc() or calloc() is deallocated using one of the delete operators instead of free(). This might cause a memory leak, or affect other heap memory due to corruption of stdlib's memory bookkeeping.

Coding standards

Code examples

The following code example fails the check and will give a warning:

#include <stdlib.h>
void f() 
{
  void *p = malloc(200);
  delete p;
}

The following code example passes the check and will not give a warning about this issue:

#include <stdlib.h>
void f() {
  void *p = malloc(200);
  free(p);
}