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# fill

Visual Studio 2005

Assigns the same new value to every element in a specified range.

```
template<class ForwardIterator, class Type>
void fill(
ForwardIterator _First,
ForwardIterator _Last,
const Type& _Val
);
```

#### Parameters

_First

A forward iterator addressing the position of the first element in the range to be traversed.

_Last

A forward iterator addressing the position one past the final element in the range to be traversed.

_Val

The value to be assigned to elements in the range [_First, _Last).

## Remarks

The destination range must be valid; all pointers must be dereferenceable, and the last position is reachable from the first by incrementation. The complexity is linear with the size of the range.

## Example

```// alg_fill.cpp
// compile with: /EHsc
#include <vector>
#include <algorithm>
#include <iostream>

int main( )
{
using namespace std;
vector <int> v1;
vector <int>::iterator Iter1;

int i;
for ( i = 0 ; i <= 9 ; i++ )
{
v1.push_back( 5 * i );
}

cout << "Vector v1 = ( " ;
for ( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter1++ )
cout << *Iter1 << " ";
cout << ")" << endl;

// Fill the last 5 positions with a value of 2
fill( v1.begin( ) + 5, v1.end( ), 2 );

cout << "Modified v1 = ( " ;
for ( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter1++ )
cout << *Iter1 << " ";
cout << ")" << endl;
}
```

#### Output

```Vector v1 = ( 0 5 10 15 20 25 30 35 40 45 )
Modified v1 = ( 0 5 10 15 20 2 2 2 2 2 )```