23 General utilities library [utilities]

23.11 Smart pointers [smartptr]

23.11.2 Shared-ownership pointers [util.smartptr]

23.11.2.2 Class template shared_­ptr [util.smartptr.shared]

23.11.2.2.2 shared_­ptr 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: 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 ]