std::ranges::zip_transform_view<F,Views...>::iterator<Const>::operator[]
From cppreference.com
< cpp | ranges | zip transform view | iterator
| constexpr decltype(auto) operator[]( difference_type n ) const requires ranges::random_access_range<Base>; |
(since C++23) | |
Returns the element at specified relative location, after transformation.
Equivalent to
return std::apply ( [&]<class... Is>(const Is&... iters) -> decltype(auto) { return std::invoke(*parent_->fun_, iters[std::iter_difference_t<Is>(n)]...); }, inner_.current_ );
where *parent_->fun_ is the transformation function of type F stored in the parent ranges::zip_transform_view, and current_ is the underlying tuple of iterators into Views....
Contents |
[edit] Parameters
| n | - | position relative to current location. |
[edit] Return value
The element which is the result of transformation (mapping).
[edit] Notes
The behavior is undefined if the parent_ pointer to parent ranges::zip_transform_view is null (e.g. if *this is default constructed).
[edit] Example
| This section is incomplete Reason: no example |
