constexpr const I& base() const& noexcept;
(1) (since C++20)constexpr I base() &&;
(2) (since C++20)Returns the underlying base iterator.
1) Returns a reference to the underlying iterator.
2) Move constructs the return value from the underlying iterator.
[edit] Parameters(none)
[edit] Return value1) A reference to the underlying iterator.
2) An iterator move constructed from the underlying iterator.
[edit] ExceptionsMay throw implementation-defined exceptions.
[edit] ExampleOutput:
Print with reverse_iterator: 4 3 2 1 0 Print with counted_iterator: 4 3 2[edit] Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR Applied to Behavior as published Correct behavior LWG 3391 C++20 the const version ofbase returns a copy of the underlying iterator returns a reference LWG 3593 C++20 the const version of base returns a reference but might not be noexcept made noexcept [edit] See also
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