.TH "std::weak_ptr< _Tp >" 3cxx "Sat Aug 14 2021" "libstdc++" \" -*- nroff -*-
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.SH NAME
std::weak_ptr< _Tp > \- A smart pointer with weak semantics\&.  

.SH SYNOPSIS
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.PP
.PP
Inherits std::__weak_ptr< _Tp, _Lp >\&.
.SS "Public Types"

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.RI "using \fBelement_type\fP = typename \fBremove_extent\fP< _Tp >::type"
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.SS "Public Member Functions"

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.RI "template<typename _Yp , typename  = _Constructible<const shared_ptr<_Yp>&>> \fBweak_ptr\fP (const \fBshared_ptr\fP< _Yp > &__r) noexcept"
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.RI "\fBweak_ptr\fP (const \fBweak_ptr\fP &) noexcept=default"
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.RI "template<typename _Yp , typename  = _Constructible<const weak_ptr<_Yp>&>> \fBweak_ptr\fP (const \fBweak_ptr\fP< _Yp > &__r) noexcept"
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.RI "\fBweak_ptr\fP (\fBweak_ptr\fP &&) noexcept=default"
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.RI "template<typename _Yp , typename  = _Constructible<weak_ptr<_Yp>>> \fBweak_ptr\fP (\fBweak_ptr\fP< _Yp > &&__r) noexcept"
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.RI "bool \fBexpired\fP () const noexcept"
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.RI "\fBshared_ptr\fP< _Tp > \fBlock\fP () const noexcept"
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.RI "template<typename _Yp > _Assignable< const \fBshared_ptr\fP< _Yp > & > \fBoperator=\fP (const \fBshared_ptr\fP< _Yp > &__r) noexcept"
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.RI "\fBweak_ptr\fP & \fBoperator=\fP (const \fBweak_ptr\fP &__r) noexcept=default"
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.RI "template<typename _Yp > _Assignable< const \fBweak_ptr\fP< _Yp > & > \fBoperator=\fP (const \fBweak_ptr\fP< _Yp > &__r) noexcept"
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.RI "\fBweak_ptr\fP & \fBoperator=\fP (\fBweak_ptr\fP &&__r) noexcept=default"
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.ti -1c
.RI "template<typename _Yp > _Assignable< \fBweak_ptr\fP< _Yp > > \fBoperator=\fP (\fBweak_ptr\fP< _Yp > &&__r) noexcept"
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.RI "template<typename _Tp1 > bool \fBowner_before\fP (const __shared_ptr< _Tp1, _Lp > &__rhs) const noexcept"
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.RI "template<typename _Tp1 > bool \fBowner_before\fP (const __weak_ptr< _Tp1, _Lp > &__rhs) const noexcept"
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.RI "void \fBreset\fP () noexcept"
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.RI "void \fBswap\fP (__weak_ptr &__s) noexcept"
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.RI "long \fBuse_count\fP () const noexcept"
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.in -1c
.SH "Detailed Description"
.PP 

.SS "template<typename _Tp>
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class std::weak_ptr< _Tp >"
A smart pointer with weak semantics\&. 

With forwarding constructors and assignment operators\&. 
.PP
Definition at line 531 of file bits/shared_ptr\&.h\&.

.SH "Author"
.PP 
Generated automatically by Doxygen for libstdc++ from the source code\&.