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std::ranges::transform_view<V,F>::iterator<Const>::operator[]

From cppreference.com
 
 
 
 
constexpr decltype(auto) operator[]( difference_type n ) const
  requires ranges::random_access_range<Base>;
(since C++20)

Returns the element at specified relative location, after transformation.

Effectively returns std::invoke(*parent_->fun_, current_[n]), where *parent_->fun_ is the transformation function stored in the parent transform_view, and current_ is the underlying iterator into V.

[edit] Parameters

n - position relative to current location.

[edit] Return value

the transformed element

[edit] Example