list::size
Returns the number of elements in a list.
size_type size( ) const;
Return Value
The current length of the list.
Example
// list_size.cpp
// compile with: /EHsc
#include <list>
#include <iostream>
int main( )
{
using namespace std;
list <int> c1;
list <int>::size_type i;
c1.push_back( 5 );
i = c1.size( );
cout << "List length is " << i << "." << endl;
c1.push_back( 7 );
i = c1.size( );
cout << "List length is now " << i << "." << endl;
}
List length is 1. List length is now 2.
Requirements
Header: <list>
Namespace: std