map::cbegin

Returns a const iterator addressing the first element in the map.

const_iterator cbegin( ) const; 

Return Value

A const bidirectional iterator addressing the first element in the map Class or the ___location succeeding an empty map.

Remark

With the return value of cbegin, the elements in the map object cannot be modified.

Example

// map_cbegin.cpp
// compile with: /EHsc
#include <map>
#include <iostream>

int main( )
{
   using namespace std;
   map <int, int> m1;

   map <int, int> :: const_iterator m1_cIter;
   typedef pair <int, int> Int_Pair;

   m1.insert ( Int_Pair ( 0, 0 ) );
   m1.insert ( Int_Pair ( 1, 1 ) );
   m1.insert ( Int_Pair ( 2, 4 ) );

   m1_cIter = m1.cbegin ( );
   cout << "The first element of m1 is " << m1_cIter -> first << endl;
   }

The first element of m1 is 0

Requirements

Header: <map>

Namespace: std

See Also

Reference

map Class

Standard Template Library

Other Resources

map Members