Returns an iterator to the first element of the adjacent_transform_view.

Let inner_ be the underlying ranges::adjacent_view.

1) Equivalent to return /*iterator*/<false>(*this, inner_.begin());.

2) Equivalent to return /*iterator*/<true>(*this, inner_.begin());.

Parameters

(none)

Return value

Iterator to the first element.

Example

#include <ranges>

int main()
{
    auto sum = [](auto... args) { return (... + args); };

    constexpr auto view = std::views::iota(13, 1337)
                        | std::views::adjacent_transform<3>(sum);

    static_assert(*view.begin() == 42 and 42 == 13 + 14 + 15);
}

See also