SUMMARY
Please provide a feature to report dangling pointers on
- exit
- upon a monitor command (similar to leak_check) 

e.g.
char* globalVar;

void main()
{
   char* z1 = new char[10];
   char* z2 = z1;
   globalVar = z2;

   delete[] z1;

}

At exit/monitor command of the program say that “globalVar” holds a pointer to a freed memory.