std::queue::empty

From Cppreference

C++ Standard Library
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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::queue
Member functions queue::queue queue::~queue queue::operator= Element access queue::front queue::back Capacity queue::empty queue::size Modifiers queue::push queue::emplace queue::pop queue::swap

bool empty() const;

Checks if the underlying container has no elements, i.e. whether c.empty().

Contents 1 Parameters 2 Return value 3 Complexity 4 See also

[edit] Parameters

(none)

[edit] Return value

true if the underlying container is empty, false otherwise

[edit] Complexity

Constant

[edit] See also

size	returns the number of elements (public member function)