public member function

std::multimap::size

<map>
size_type size() const;
Return container size
Returns the number of elements in the container.

Parameters

none

Return Value

The number of elements that conform the multimap's content.

Member type size_type is an unsigned integral type.

Example

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// multimap::size
#include <iostream>
#include <map>
using namespace std;

int main ()
{
  multimap<char,int> mymultimap;

  mymultimap.insert(pair<char,int>('x',100));
  mymultimap.insert(pair<char,int>('y',200));
  mymultimap.insert(pair<char,int>('y',350));
  mymultimap.insert(pair<char,int>('z',500));

  cout << "mymultimap.size() is " << (int) mymultimap.size() << endl;

  return 0;
}


Output:
mymultimap.size() is 4

Complexity

Constant.

See also

multimap::max_size
Return maximum size (public member function)
multimap::empty
Test whether container is empty (public member function)

C++