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std::weak_ptr< _Tp >(3) Library Functions Manual std::weak_ptr< _Tp >(3)

NAME

std::weak_ptr< _Tp > -

SYNOPSIS

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

Detailed Description

template<typename _Tp>class std::weak_ptr< _Tp >

A smart pointer with weak semantics.

With forwarding constructors and assignment operators.

Definition at line 461 of file shared_ptr.h.

Author

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Tue Sep 29 2020 libstdc++