std::array::empty

C++ Reference
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Containers library
array (C++11) vector deque forward_list (C++11) list set multiset map multimap unordered_set (C++11) unordered_multiset (C++11) unordered_map (C++11) unordered_multimap (C++11) stack queue priority_queue
std::array
Member functions Element access array::at array::operator[] array::front array::back array::data Iterators array::begin array::cbegin array::end array::cend array::rbegin array::crbegin array::rend array::crend Capacity array::empty array::size array::max_size Modifiers array::fill array::swap Non-member functions get swap Helper classes tuple_size tuple_element

constexpr bool empty();		(since C++11)

Checks if the container has no elements, i.e. whether begin() == end().

Parameters

(none)

Return value

true if the container is empty, false otherwise

Exceptions

noexcept specification:  

noexcept

  (since C++11)

Complexity

Constant

See also

size	returns the number of elements (public member function)