std::counted_iterator<I>::operator=

Since C++20

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

# Declarations

template< class I2 >
requires std::assignable_from<I&, const I2&>
constexpr counted_iterator& operator=( const counted_iterator<I2>& other );

(since C++20)

# Parameters

other: iterator adaptor to assign from

# Return value

*this

# Example

#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

(constructor)