# std::ranges::zip_transform_view<F,Views...>::sentinel

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< cpp‎ | ranges‎ | zip transform view

template< bool Const > class /*sentinel*/; // exposition only |  | (since C++23)

The return type of `zip_transform_view::end` when the underlying view is not a `common_range`. The name of this class template (shown here as `sentinel`) is unspecified.

The type /*sentinel*/<true> or /*sentinel*/<false> treats the underlying view as const-qualified or non-const-qualified respectively.

### Data members

Typical implementation of `sentinel` holds only one non-static data member `inner_` of type `zentinel<Const>`. The name `inner_` is for exposition purposes only.

### Member functions

(constructor) (C++23) | constructs a sentinel (public member function)

### Non-member functions

operator== (C++23) | compares a sentinel with an iterator returned from `zip_transform_view::begin` (function)
operator- (C++23) | computes the distance between a sentinel and an iterator returned from `zip_transform_view::begin` (function)

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