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std::basic_string_view::size, std::basic_string_view::length

constexpr size_type size() const;
 (since C++17) 
constexpr size_type length() const;
 (since C++17)

Returns the number of CharT elements in the view, i.e. std::distance(begin(), end()).

Parameters

(none).

Return value

The number of CharT elements in the view.

Exceptions

noexcept specification:
noexcept

Complexity

Constant.

See also

checks whether the view is empty
(public member function)
returns the maximum number of characters
(public member function)

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