std::counted_iterator<I>:: operator=

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C++
Iterator library
Iterator concepts
Iterator primitives
Algorithm concepts and utilities
Indirect callable concepts
Common algorithm requirements
(C++20)
(C++20)
(C++20)
Utilities
(C++20)
Iterator adaptors
Range access
(C++11) (C++14)
(C++14) (C++14)
(C++11) (C++14)
(C++14) (C++14)
(C++17) (C++20)
(C++17)
(C++17)
std::counted_iterator
template < class I2 >

requires std:: assignable_from < I & , const I2 & >

constexpr counted_iterator & operator = ( const counted_iterator < I2 > & other ) ;
(since C++20)

The underlying iterator and length are assigned with those of other .

Parameters

other - iterator adaptor to assign from

Return value

* this

Example

Run this code 
#include <algorithm>
#include <cassert>
#include <initializer_list>
#include <iterator>
 
int main()
{
    auto a = {3, 1, 4, 1, 5, 9, 2};
    std::counted_iterator<std::initializer_list<int>::iterator> p(begin(a), size(a) - 2);
    std::counted_iterator<std::initializer_list<int>::iterator> q;
    assert(q.count() == 0);
    assert(q.count() != p.count());
    q = p;
    assert(q.count() == p.count());
    assert(std::ranges::equal(p, std::default_sentinel, q, std::default_sentinel));
}

See also

(C++20)
constructs a new iterator adaptor
(public member function)
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