std::basic_const_iterator<Iter>::operator[] - cppreference.com
From cppreference.com
constexpr std::iter_const_reference_t<Iter> operator[]( difference_type n ) const requires std::random_access_iterator<Iterator>; |
(since C++23) | |
Returns a reference to the element at specified relative location.
Parameters
| n | - | position relative to current location |
Return value
A reference-to-const to the element at relative location, that is, static_cast<std::iter_const_reference_t<Iter>>(base()[n]).