hash_multiset::upper_bound

Note

This API is obsolete. The alternative is unordered_multiset Class.

Returns an iterator to the first element in a hash_multiset with a key that is greater than a specified key.

const_iterator upper_bound( 
   const Key& _Key 
) const; 
iterator upper_bound( 
   const Key& _Key 
);

Parameters

• _Key
  The argument key to be compared with the sort key of an element from the hash_multiset being searched.

Return Value

An iterator or const_iterator that addresses the location of the first element in a hash_multiset with a key greater than the argument key, or that addresses the location succeeding the last element in the hash_multiset if no match is found for the key.

Remarks

In Visual C++ .NET 2003, members of the <hash_map> and <hash_set> header files are no longer in the std namespace, but rather have been moved into the stdext namespace. See The stdext Namespace for more information.

Example

// hash_multiset_upper_bound.cpp
// compile with: /EHsc
#include <hash_set>
#include <iostream>

int main( )
{
   using namespace std;
   using namespace stdext;
   hash_multiset <int> hms1;
   hash_multiset <int> :: const_iterator hms1_AcIter, hms1_RcIter;
   
   hms1.insert( 10 );
   hms1.insert( 20 );
   hms1.insert( 30 );

   hms1_RcIter = hms1.upper_bound( 20 );
   cout << "The first element of hash_multiset hms1" << endl
        << " with a key greater than 20 is: "
        << *hms1_RcIter << "." << endl;

   hms1_RcIter = hms1.upper_bound( 30 );

   // If no match is found for the key, end( ) is returned
   if ( hms1_RcIter == hms1.end( ) )
      cout << "The hash_multiset hms1 doesn't have an element "
           << "\n with a key greater than 30." << endl;
   else
      cout << "The element of hash_multiset hms1"
           << "with a key > 40 is: "
           << *hms1_RcIter << "." << endl;

   // An element at a specific location in the hash_multiset can be
   // found by using a dereferenced iterator addressing the location
   hms1_AcIter = hms1.begin( );
   hms1_RcIter = hms1.upper_bound( *hms1_AcIter );
   cout << "The first element of hms1\n with a key greater than "
        << endl << "that of the initial element of hms1 is: "
        << *hms1_RcIter << "." << endl;
}

The first element of hash_multiset hms1
 with a key greater than 20 is: 30.
The hash_multiset hms1 doesn't have an element 
 with a key greater than 30.
The first element of hms1
 with a key greater than 
that of the initial element of hms1 is: 20.

Requirements

Header: <hash_set>

Namespace: stdext

See Also

Reference

hash_multiset Class

Standard Template Library