vector::assign
Visual Studio .NET 2003
Erases a vector and copies the specified elements to the empty vector.
void assign(
size_type _Count,
const Type& _Val
);
template<class InputIterator>
void assign(
InputIterator _First,
InputIterator _Last
);
Parameters
- _First
- Position of the first element in the range of elements to be copied.
- _Last
- Position of the first element beyond the range of elements to be copied.
- _Count
- The number of copies of an element being inserted into the vector.
- _Val
- The value of the element being inserted into the vector.
Remarks
After erasing any existing elements in a vector, assign either inserts a specified range of elements from the original vector into a vector or inserts copies of a new element of a specified value into a vector.
Example
// vector_assign.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>
int main( )
{
using namespace std;
vector <int> v1;
vector <int>::iterator Iter;
v1.push_back( 10 );
v1.push_back( 20 );
v1.push_back( 30 );
v1.push_back( 40 );
v1.push_back( 50 );
cout << "v1 = " ;
for ( Iter = v1.begin( ); Iter != v1.end( ); Iter++ )
cout << *Iter << " ";
cout << endl;
v1.assign( v1.begin( ) + 1, v1.begin( ) + 3 );
cout << "v1 = ";
for ( Iter = v1.begin( ) ; Iter != v1.end( ) ; Iter++ )
cout << *Iter << " ";
cout << endl;
v1.assign( 7, 4 ) ;
cout << "v1 = ";
for ( Iter = v1.begin( ) ; Iter != v1.end( ) ; Iter++ )
cout << *Iter << " ";
cout << endl;
}
Output
v1 = 10 20 30 40 50
v1 = 20 30
v1 = 4 4 4 4 4 4 4
