public member function

std::multiset::begin

<set>
      iterator begin ();
const_iterator begin () const;
Return iterator to beginning
Returns an iterator referring to the first element in the multiset container.

Internally, multiset containers keep their elements ordered from lower to higher, therefore begin returns the element with the lowest key value in the multiset.

Parameters

none

Return Value

An iterator to the first element in the container.

Both iterator and const_iterator are member types. In the multiset class template, these are bidirectional iterators.

Example

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// multiset::begin/end
#include <iostream>
#include <set>
using namespace std;

int main ()
{
  int myints[] = {42,71,71,71,12};
  multiset<int> mymultiset (myints,myints+5);

  multiset<int>::iterator it;

  cout << "mymultiset contains:";
  for ( it=mymultiset.begin() ; it != mymultiset.end(); it++ )
    cout << " " << *it;

  cout << endl;

  return 0;
}


Output:
mymultiset contains: 12 42 71 71 71

Complexity

Constant.

See also

multiset::end
Return iterator to end (public member function)
multiset::rbegin
Return reverse iterator to reverse beginning (public member function)
multiset::rend
Return reverse iterator to reverse end (public member function)

C++