libstdc++
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Inherits std::__weak_ptr< _Tp, _Lp >.
Public Types | |
typedef _Tp | element_type |
Public Member Functions | |
template<typename _Tp1 , typename = typename std::enable_if<std::is_convertible<_Tp1*, _Tp*>::value>::type> | |
weak_ptr (const weak_ptr< _Tp1 > &__r) noexcept | |
template<typename _Tp1 , typename = typename std::enable_if<std::is_convertible<_Tp1*, _Tp*>::value>::type> | |
weak_ptr (const shared_ptr< _Tp1 > &__r) noexcept | |
bool | expired () const noexcept |
shared_ptr< _Tp > | lock () const noexcept |
template<typename _Tp1 > | |
weak_ptr & | operator= (const weak_ptr< _Tp1 > &__r) noexcept |
template<typename _Tp1 > | |
weak_ptr & | operator= (const shared_ptr< _Tp1 > &__r) noexcept |
template<typename _Tp1 > | |
bool | owner_before (const __shared_ptr< _Tp1, _Lp > &__rhs) const |
template<typename _Tp1 > | |
bool | owner_before (const __weak_ptr< _Tp1, _Lp > &__rhs) const |
void | reset () noexcept |
void | swap (__weak_ptr &__s) noexcept |
long | use_count () const noexcept |
A smart pointer with weak semantics.
With forwarding constructors and assignment operators.
Definition at line 467 of file shared_ptr.h.