std::counted_iterator<I>::operator*,->
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
#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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