std::experimental::basic_string_view<CharT,Traits>::empty

 

C++

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std::experimental::basic_string_view

Member functions basic_string_view::basic_string_view basic_string_view::operator= Iterators basic_string_view::beginbasic_string_view::cbegin basic_string_view::endbasic_string_view::cend basic_string_view::rbeginbasic_string_view::crbegin basic_string_view::rendbasic_string_view::crend Element access basic_string_view::at basic_string_view::operator[] basic_string_view::front basic_string_view::back basic_string_view::data Capacity basic_string_view::sizebasic_string_view::length basic_string_view::max_size basic_string_view::empty Modifiers basic_string_view::remove_prefix basic_string_view::remove_suffix basic_string_view::swap

Operations basic_string_view::to_stringbasic_string_view::operator basic_string basic_string_view::copy basic_string_view::substr basic_string_view::compare basic_string_view::find basic_string_view::rfind basic_string_view::find_first_of basic_string_view::find_last_of basic_string_view::find_first_not_of basic_string_view::find_last_not_of Constants basic_string_view::npos Non-member functions operator==operator!=operator<operator>operator<=operator>= operator<< Helper classes hash<std::string_view>hash<std::wstring_view>hash<std::u16string_view>hash<std::u32string_view>

 

constexpr bool empty() const noexcept;		(library fundamentals TS)

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

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