std::list::empty

C++ Reference
Language Concepts Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
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::list
Member functions list::list list::~list list::operator= list::assign list::get_allocator Element access list::front list::back Iterators list::begin list::cbegin (C++11) list::end list::cend (C++11) list::rbegin list::crbegin (C++11) list::rend list::crend (C++11) Capacity list::empty list::size list::max_size Modifiers list::clear list::insert list::emplace (C++11) list::erase list::push_front list::emplace_front (C++11) list::pop_front list::push_back list::emplace_back (C++11) list::pop_back list::resize list::swap Operations list::merge list::splice list::remove list::remove_if list::reverse list::unique list::sort

bool empty() const;

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)