20 Memory management library [mem]

20.3 Smart pointers [smartptr]

20.3.2 Shared-ownership pointers [util.sharedptr]

20.3.2.2 Class template shared_ptr [util.smartptr.shared]

20.3.2.2.3 Destructor [util.smartptr.shared.dest]

🔗
~shared_ptr();
1
#
Effects:
  • (1.1)
    If *this is empty or shares ownership with another shared_ptr instance (use_count() > 1), there are no side effects.
  • (1.2)
    Otherwise, if *this owns an object p and a deleter d, d(p) is called.
  • (1.3)
    Otherwise, *this owns a pointer p, and delete p is called.
2
#
[Note 1: 
Since the destruction of *this decreases the number of instances that share ownership with *this by one, after *this has been destroyed all shared_ptr instances that shared ownership with *this will report a use_count() that is one less than its previous value.
— end note]