Users Online
· Guests Online: 97
· Members Online: 0
· Total Members: 188
· Newest Member: meenachowdary055
· Members Online: 0
· Total Members: 188
· Newest Member: meenachowdary055
Forum Threads
Newest Threads
No Threads created
Hottest Threads
No Threads created
Latest Articles
Articles Hierarchy
fill_n() Function in C++
fill_n() Function in C++
This C++ program demonstrates the fill_n() algorithm. The program uses function fill_n() to fill some continous positions in a container. The function takes iterator from which the values are to be filled, the number of positions to be filled and the value to be filled.
Here is the source code of the C++ program which demonstrates the fill_n() algorithm. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.
-
/*
-
* C++ Program to demonstrate fill_n() algorithm
-
*/
-
#include <algorithm>
-
#include <vector>
-
#include <iostream>
-
#include <iomanip>
-
-
void print(const std::vector <int>& v)
-
{
-
std::vector <int>::const_iterator i;
-
for(i = v.begin(); i != v.end(); i++)
-
{
-
std::cout << std::setw(2) << *i << " ";
-
}
-
std::cout << std::endl;
-
}
-
-
int main()
-
{
-
int arr[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
-
std::vector<int> v(arr, arr + sizeof(arr) / sizeof(int));
-
-
std::cout << "Vector before fill_n" << std::endl;
-
print(v);
-
std::fill_n(v.begin() + 3, 5, -1);
-
std::cout << "Vector after fill_n" << std::endl;
-
print(v);
-
}
$ a.out Vector before fill_n 0 1 2 3 4 5 6 7 8 9 Vector after fill_n 0 1 2 -1 -1 -1 -1 -1 8 9
Comments
No Comments have been Posted.
Post Comment
Please Login to Post a Comment.