std::list::size

From Cppreference

C++ Standard Library
Language 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

size_type size() const;

Returns the number of elements in the container, i.e. std::distance(begin(), end()).

Contents 1 Parameters 2 Return value 3 Exceptions 4 Complexity 5 See also

[edit] Parameters

(none)

[edit] Return value

the number of elements in the container

[edit] Exceptions

[edit] Complexity

Constant or linear (pre-C++11 version)

Constant (C++11 version)

[edit] See also

empty	checks whether the container is empty (public member function)
max_size	returns the maximum possible number of elements (public member function)
resize	changes the number of elements stored (public member function)