hash_set::crbegin
Note
This API is obsolete. The alternative is unordered_set Class.
Returns a const iterator addressing the first element in a reversed hash_set.
const_reverse_iterator crbegin( ) const;
Return Value
A const reverse bidirectional iterator addressing the first element in a reversed hash_set Class or addressing what had been the last element in the unreversed hash_set.
Remarks
crbegin is used with a reversed hash_set just as hash_set::begin is used with a hash_set.
With the return value of crbegin, the hash_set object cannot be modified.
crbegin can be used to iterate through a hash_set backwards.
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_set_crbegin.cpp
// compile with: /EHsc
#include <hash_set>
#include <iostream>
int main( )
{
using namespace std;
using namespace stdext;
hash_set <int> hs1;
hash_set <int>::const_reverse_iterator hs1_crIter;
hs1.insert( 10 );
hs1.insert( 20 );
hs1.insert( 30 );
hs1_crIter = hs1.crbegin( );
cout << "The first element in the reversed hash_set is "
<< *hs1_crIter << "." << endl;
}
The first element in the reversed hash_set is 30.
Requirements
Header: <hash_set>
Namespace: stdext