.TH "std::reference_wrapper< _Tp >" 3cxx "Thu Feb 16 2023" "libstdc++" \" -*- nroff -*- .ad l .nh .SH NAME std::reference_wrapper< _Tp > \- Primary class template for reference_wrapper\&. .SH SYNOPSIS .br .PP .PP \fC#include \fP .PP Inherits _Reference_wrapper_base_memfun< remove_cv< _Tp >::type >\&. .SS "Public Types" .in +1c .ti -1c .RI "typedef _Tp \fBtype\fP" .br .in -1c .SS "Public Member Functions" .in +1c .ti -1c .RI "template, typename = decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> constexpr \fBreference_wrapper\fP (_Up &&__uref) noexcept(noexcept(reference_wrapper::_S_fun(\fBstd::declval\fP< _Up >())))" .br .ti -1c .RI "\fBreference_wrapper\fP (const \fBreference_wrapper\fP &)=default" .br .ti -1c .RI "constexpr _Tp & \fBget\fP () const noexcept" .br .ti -1c .RI "constexpr \fBoperator _Tp &\fP () const noexcept" .br .ti -1c .RI "template constexpr \fBresult_of\fP< _Tp &(_Args &&\&.\&.\&.)>::type \fBoperator()\fP (_Args &&\&.\&.\&. __args) const" .br .ti -1c .RI "\fBreference_wrapper\fP & \fBoperator=\fP (const \fBreference_wrapper\fP &)=default" .br .in -1c .SS "Related Functions" (Note that these are not member functions\&.) .PP .RI "\fB\fP" .br .in +1c .in +1c .ti -1c .RI "template constexpr \fBreference_wrapper\fP< _Tp > \fBref\fP (_Tp &__t) noexcept" .br .ti -1c .RI "template constexpr \fBreference_wrapper\fP< const _Tp > \fBcref\fP (const _Tp &__t) noexcept" .br .RI "Denotes a const reference should be taken to a variable\&. " .ti -1c .RI "template constexpr \fBreference_wrapper\fP< _Tp > \fBref\fP (\fBreference_wrapper\fP< _Tp > __t) noexcept" .br .RI "std::ref overload to prevent wrapping a reference_wrapper " .ti -1c .RI "template constexpr \fBreference_wrapper\fP< const _Tp > \fBcref\fP (\fBreference_wrapper\fP< _Tp > __t) noexcept" .br .RI "std::cref overload to prevent wrapping a reference_wrapper " .in -1c .in -1c .SH "Detailed Description" .PP .SS "template .br class std::reference_wrapper< _Tp >"Primary class template for reference_wrapper\&. .PP Definition at line \fB294\fP of file \fBrefwrap\&.h\fP\&. .SH "Member Typedef Documentation" .PP .SS "template typedef _Tp \fBstd::reference_wrapper\fP< _Tp >::type" .PP Definition at line \fB313\fP of file \fBrefwrap\&.h\fP\&. .SH "Constructor & Destructor Documentation" .PP .SS "template template, typename = decltype(reference_wrapper::_S_fun(std::declval<_Up>()))> constexpr \fBstd::reference_wrapper\fP< _Tp >::reference_wrapper (_Up && __uref)\fC [inline]\fP, \fC [constexpr]\fP, \fC [noexcept]\fP" .PP Definition at line \fB321\fP of file \fBrefwrap\&.h\fP\&. .SH "Member Function Documentation" .PP .SS "template constexpr _Tp & \fBstd::reference_wrapper\fP< _Tp >::get (void) const\fC [inline]\fP, \fC [constexpr]\fP, \fC [noexcept]\fP" .PP Definition at line \fB337\fP of file \fBrefwrap\&.h\fP\&. .SS "template constexpr \fBstd::reference_wrapper\fP< _Tp >::operator _Tp & () const\fC [inline]\fP, \fC [constexpr]\fP, \fC [noexcept]\fP" .PP Definition at line \fB332\fP of file \fBrefwrap\&.h\fP\&. .SS "template template constexpr \fBresult_of\fP< _Tp &(_Args &&\&.\&.\&.)>::type \fBstd::reference_wrapper\fP< _Tp >::operator() (_Args &&\&.\&.\&. __args) const\fC [inline]\fP, \fC [constexpr]\fP" .PP Definition at line \fB343\fP of file \fBrefwrap\&.h\fP\&. .SH "Friends And Related Function Documentation" .PP .SS "template constexpr \fBreference_wrapper\fP< const _Tp > cref (const _Tp & __t)\fC [related]\fP" .PP Denotes a const reference should be taken to a variable\&. .PP Definition at line \fB371\fP of file \fBrefwrap\&.h\fP\&. .SS "template constexpr \fBreference_wrapper\fP< const _Tp > cref (\fBreference_wrapper\fP< _Tp > __t)\fC [related]\fP" .PP std::cref overload to prevent wrapping a reference_wrapper .PP Definition at line \fB391\fP of file \fBrefwrap\&.h\fP\&. .SS "template constexpr \fBreference_wrapper\fP< _Tp > ref (_Tp & __t)\fC [related]\fP" Denotes a reference should be taken to a variable\&. .PP Definition at line \fB364\fP of file \fBrefwrap\&.h\fP\&. .SS "template constexpr \fBreference_wrapper\fP< _Tp > ref (\fBreference_wrapper\fP< _Tp > __t)\fC [related]\fP" .PP std::ref overload to prevent wrapping a reference_wrapper .PP Definition at line \fB384\fP of file \fBrefwrap\&.h\fP\&. .SH "Author" .PP Generated automatically by Doxygen for libstdc++ from the source code\&.