Make Sure You Don’t Leave Pointers to Deleted Things Hanging Around

The following macros will facilitate this task and have been very useful:

 #define SAFEDELETE(p) if(p) { delete p; p =NULL;}#define SAFEDELETE_ARRAY if(p) { delete [] p; p = NULL;}How to use-int main(){    int *i  = new int;    char *ptr = new char[100];    // do something with ptr    SAFEDELETE_ARRAY(ptr);    SAFEDELETE(i);}

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