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

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Ranges library
Range adaptors
constexpr decltype ( auto ) operator * ( ) const ;
(since C++20)

Returns the transformed element.

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

Parameters

(none)

Return value

The transformed element.

Notes

operator - > is not provided.

The behavior is undefined if the pointer to parent transform_view is null (e.g. if * this is default constructed).

If *current_ is a prvalue, its lifetime ends before this function returns. If the transformation function returns a reference or pointer to it, the result would dangle.

Example