hash_set::rend
참고
이 API는 사용되지 않습니다.unordered_set 클래스를 대신 사용하는 것이 좋습니다.
Returns an iterator that addresses the location succeeding the last element in a reversed hash_set.
const_reverse_iterator rend( ) const;
reverse_iterator rend( );
반환 값
A reverse bidirectional iterator that addresses the location succeeding the last element in a reversed hash_set (the location that had preceded the first element in the unreversed hash_set).
설명
rend is used with a reversed hash_set just as end is used with a hash_set.
If the return value of rend is assigned to a const_reverse_iterator, then the hash_set object cannot be modified. If the return value of rend is assigned to a reverse_iterator, then the hash_set object can be modified. 이 rend 로 반환된 값은 역참조 되지 않아야 합니다.
rend can be used to test to whether a reverse iterator has reached the end of its hash_set.
Visual C++.NET 2003에서, <hash_map> 및 <hash_set> 헤더 파일의 멤버는 더 이상 std 네임스페이스에 존재하지 않습니다. 대신 stdext 네임스페이스로 이동되었습니다. 자세한 내용은 stdext 네임스페이스를 참조하십시오.
예제
// hash_set_rend.cpp
// compile with: /EHsc
#include <hash_set>
#include <iostream>
int main( )
{
using namespace std;
using namespace stdext;
hash_set <int> hs1;
hash_set <int>::iterator hs1_Iter;
hash_set <int>::reverse_iterator hs1_rIter;
hash_set <int>::const_reverse_iterator hs1_crIter;
hs1.insert( 10 );
hs1.insert( 20 );
hs1.insert( 30 );
hs1_rIter = hs1.rend( );
hs1_rIter--;
cout << "The last element in the reversed hash_set is "
<< *hs1_rIter << "." << endl;
// end can be used to terminate an iteration
// throught a hash_set in a forward order
cout << "The hash_set is: ";
for ( hs1_Iter = hs1.begin( ) ; hs1_Iter != hs1.end( );
hs1_Iter++ )
cout << *hs1_Iter << " ";
cout << "." << endl;
// rend can be used to terminate an iteration
// through a hash_set in a reverse order
cout << "The reversed hash_set is: ";
for ( hs1_rIter = hs1.rbegin( ) ; hs1_rIter != hs1.rend( );
hs1_rIter++ )
cout << *hs1_rIter << " ";
cout << "." << endl;
hs1_rIter = hs1.rend( );
hs1_rIter--;
hs1.erase ( *hs1_rIter );
hs1_rIter = hs1.rend( );
hs1_rIter--;
cout << "After the erasure, the last element in the "
<< "reversed hash_set is " << *hs1_rIter << "."
<< endl;
}
요구 사항
헤더: <hash_set>
네임스페이스: stdext