std::multimap<Key,T,Compare,Allocator>::size
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std::multimap
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multimap::size
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size_type size() const;
(noexcept since C++11) (constexpr since C++26)
Returns the number of elements in the container.
Contents
[edit] Return value
std::distance (begin(), end())
[edit] Complexity
Constant.
[edit] Example
Run this code
#include <cassert> #include <map> int main() { std::multimap <int, char> nums{{1, 'a'}, {1, 'b'}, {2, 'c'}, {2, 'd'}}; assert (nums.size() == 4); }