iter_move(std::move_iterator)

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std::move_iterator

Member functions
move_iterator::move_iterator
move_iterator::operator=
move_iterator::base
move_iterator::operator*move_iterator::operator->
move_iterator::operator[]
move_iterator::operator++move_iterator::operator+move_iterator::operator+=move_iterator::operator--move_iterator::operator-move_iterator::operator-=
Non-member functions
operator==operator!=operator<operator<=operator>operator>=operator<=> (until C++20)(C++20)
operator==(move_sentinel) (C++20)
operator+
operator-
operator-(move_sentinel) (C++20)
iter_move (C++20)
iter_swap (C++20)
make_move_iterator (C++11)

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friendconstexprstd::iter_rvalue_reference_t<Iter> iter_move(conststd::move_iterator& i)noexcept(/* see below */);		(since C++20)

Casts the result of dereferencing the underlying iterator to its associated rvalue reference type.

Equivalent toreturn std::ranges::iter_move(i.base());.

This function template is not visible to ordinaryunqualified orqualified lookup, and can only be found byargument-dependent lookup whenstd::move_iterator<Iter> is an associated class of the arguments.

[edit]Parameters

a source move iterator

[edit]Return value

An rvalue reference or a prvalue temporary.

[edit]Complexity

Constant.

[edit]Exceptions

noexcept specification:

noexcept(noexcept(ranges::iter_move(i.base())))

[edit]Example

Run this code

#include <iomanip>#include <iostream>#include <iterator>#include <string>#include <vector> void print(constauto& rem,constauto& v){std::cout<< rem<<'['<< size(v)<<"] { ";for(char comma[]{0,' ',0};constauto& s: v)std::cout<< comma<<std::quoted(s), comma[0]=',';std::cout<<" }\n";} int main(){std::vector<std::string> p{"Andromeda","Cassiopeia","Phoenix"}, q;     print("p", p), print("q", q); using MI=std::move_iterator<std::vector<std::string>::iterator>; for(MI first{p.begin()}, last{p.end()}; first!= last;++first)        q.emplace_back(/* ADL */ iter_move(first));     print("p", p), print("q", q);}

Possible output:

p[3] { "Andromeda", "Cassiopeia", "Phoenix" }q[0] {  }p[3] { "", "", "" }q[3] { "Andromeda", "Cassiopeia", "Phoenix" }

[edit]See also

iter_move (C++20)	casts the result of dereferencing an object to its associated rvalue reference type (customization point object)[edit]
iter_move (C++20)	casts the result of dereferencing the adjusted underlying iterator to its associated rvalue reference type (function)[edit]
move (C++11)	converts the argument to an xvalue (function template)[edit]
move_if_noexcept (C++11)	converts the argument to an xvalue if the move constructor does not throw (function template)[edit]
forward (C++11)	forwards a function argument and use the type template argument to preserve its value category (function template)[edit]
ranges::move (C++20)	moves a range of elements to a new location (algorithm function object)[edit]
ranges::move_backward (C++20)	moves a range of elements to a new location in backwards order (algorithm function object)[edit]