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std::basic_string_view::empty

constexpr bool empty() const noexcept;
(since C++17)
(until C++20)
[[nodiscard]] constexpr bool empty() const noexcept;
(since C++20)

Checks if the view has no characters, i.e. whether size() == 0.

Parameters

(none).

Return value

true if the view is empty, false otherwise.

Complexity

Constant.

See also

returns the number of characters
(public member function)
returns the maximum number of characters
(public member function)

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