std::set::size

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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::set
Member functions set::set set::~set set::operator= set::get_allocator Iterators set::begin set::cbegin (C++11) set::end set::cend (C++11) set::rbegin set::crbegin (C++11) set::rend set::crend (C++11) Capacity set::empty set::size set::max_size Modifiers set::clear set::insert set::emplace (C++11) set::emplace_hint (C++11) set::erase set::swap Lookup set::count set::find set::equal_range set::lower_bound set::upper_bound Observers set::key_comp set::value_comp

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

[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)