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operator==(ranges::transform_view::sentinel)

From cppreference.com
 
 
 
 
friend constexpr bool operator==( const /*iterator*/<Const>& x, const /*sentinel*/& y );
(since C++20)

Compares the underlying iterator of x with the underlying sentinel of y.

This function is not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when transform_view::sentinel<Const> is an associated class of the arguments.

[edit] Parameters

x - iterator to compare
y - sentinel to compare

[edit] Return value

x.current_ == y.end_, where current_ denotes the underlying iterator, end_ denotes the underlying sentinel.

[edit] Example