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)
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(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
constexpr decltype( auto ) operator* ( ) ;
(1) (since C++20)
constexpr decltype( auto ) operator* ( ) const
    requires /*dereferenceable*/ < const I> ;
(2) (since C++20)
constexpr auto operator- > ( ) const noexcept
    requires std::contiguous_iterator <I> ;
(3) (since C++20)
1,2) Returns a reference to the current element. The behavior is undefined if this->count() <= 0 . The function's body is equivalent to return *current;
3) Returns a pointer to the current element. The function's body is equivalent to return std::to_address (current) ;

Parameters

(none)

Return value

Reference or pointer to the current element.

Example

Run this code
#include <complex>
#include <iostream>
#include <iterator>
using std::operator""i;
 
int main()
{
    const auto il = {1.i, 2.i, 3.i, 4.i, 5.i};
 
    for (std::counted_iterator i{il.begin() + 1, 3}; i != std::default_sentinel; ++i)
        std::cout << *i << ' ';
    std::cout << '\n';
 
    for (std::counted_iterator i{il.begin() + 1, 3}; i != std::default_sentinel; ++i)
        std::cout << i->imag() << ' ';
    std::cout << '\n';
}

Output: 

(0,2) (0,3) (0,4)
2 3 4

See also

(C++20)
 accesses an element by index
(public member function)
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