Effective C + + essay (3)

Article 12: Manage resources with objects two pointers only:

Std:auto_ptr<>

When using the copy operating room, the original smart pointer is pointing to NULL

Std:tr1:share_ptr<int> SPI ();

When multiple points can be pointed to the same address, but when the delete is to be made according to the number of pointers to the address, whether to delete this block of memory

Article 13 Beware of copying behavior in resource management

Class Lock{public:explicit Lock (mutex* pm): mutexptr (PM) {lock (mutexptr);} ~lock () {unlock (mutexptr);} Private:mutex * MUTEXPTR;}; Mutex m; {Lock m (&m);}

The Locd destructor is executed automatically when the end of the chunk is executed, freeing the lock

Effective C + + essay (3)