vector::rbegin
Returns an iterator to the first element in a reversed vector.
reverse_iterator rbegin( );
const_reverse_iterator rbegin( ) const;
Return Value
A reverse random-access iterator addressing the first element in a reversed vector or addressing what had been the last element in the unreversed vector.
Remarks
If the return value of rbegin is assigned to a const_reverse_iterator, the vector object cannot be modified. If the return value of rbegin is assigned to a reverse_iterator, the vector object can be modified.
Example
// vector_rbegin.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>
int main( )
{
using namespace std;
vector <int> v1;
vector <int>::iterator v1_Iter;
vector <int>::reverse_iterator v1_rIter;
v1.push_back( 1 );
v1.push_back( 2 );
v1_Iter = v1.begin( );
cout << "The first element of vector is "
<< *v1_Iter << "." << endl;
v1_rIter = v1.rbegin( );
cout << "The first element of the reversed vector is "
<< *v1_rIter << "." << endl;
}
The first element of vector is 1. The first element of the reversed vector is 2.
Requirements
Header: <vector>
Namespace: std