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std::ranges::stride_view<V>::iterator<Const>::operator[]

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< cpp‎ | ranges‎ | stride view‎ | iterator
 
 
Ranges library
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(C++23)

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(until C++23)(C++23)


 
 
constexpr decltype(auto) operator[]( difference_type n ) const
    requires ranges::random_access_range<Base>
(since C++23)

Returns an element at specified relative location.

Equivalent to: return *(*this + n);.

Contents

[edit] Parameters

n - position relative to current location

[edit] Return value

The element at displacement n relative to the current location.

[edit] Example

#include <ranges>
 
int main()
{
    constexpr static auto v = {'a', 'b', 'c', 'd', 'e'};
    constexpr auto view{v | std::views::stride(2)};
    constexpr auto iter{view.begin() + 1};
    static_assert(*iter == 'c');
    static_assert(iter[0] == 'c');
    static_assert(iter[1] == 'e');
}

[edit] See also

(C++23)
accesses an element
(public member function)