NAME¶

std::ranges::stride_view::begin - std::ranges::stride_view::begin

Synopsis¶

constexpr auto begin() requires (!__simple_view<V>); (1) (since C++23)
constexpr auto begin() const requires ranges::range<const V>; (2) (since C++23)

Returns an iterator to the first element of the stride_view.

1) Equivalent to return iterator<false>(this, ranges::begin(base_));.
2) Equivalent to return iterator<true>(this, ranges::begin(base_));.

Overload (1) does not participate in overload resolution if V is a simple view (that
is, if V and const V are views with the same iterator and sentinel types).

Parameters¶

(none)

Return value¶

Iterator to the first element of the view.

Example¶

A link to test: Compiler Explorer.

// Run this code

#include <print>
#include <ranges>

int main()
{
constexpr auto v = {'A', 'B', 'C'};
const auto x = v | std::views::stride(2);
const auto y = v | std::views::reverse | std::views::stride(2);
const auto z = v | std::views::stride(2) | std::views::reverse;
std::println("{} {} {}", *x.begin(), *y.begin(), *z.begin());
}

Output:¶

A C C

See also¶

end returns an iterator or a sentinel to the end
(C++23) (public member function)