W3cubDocs

/C++

std::basic_string_view::empty

constexpr bool empty() const;
(since C++17)

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

Parameters

(none).

Return value

true if the view is empty, false otherwise.

Exceptions

noexcept specification:
noexcept

Complexity

Constant.

See also

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

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/string/basic_string_view/empty