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iomanip setfill() function in C++ with Examples
  • Last Updated : 11 Oct, 2019

The setfill() method of iomaip library in C++ is used to set the ios library fill character based on the character specified as the parameter to this method.

Syntax:

setfill(char c)

Parameters: This method accepts c as a parameter which is the character argument corresponding to which the fill is to be set.

Return Value: This method does not returns anything. It only acts as stream manipulators.

Example 1:






// C++ code to demonstrate
// the working of setfill() function
  
#include <iomanip>
#include <ios>
#include <iostream>
  
using namespace std;
  
int main()
{
  
    // Initializing the integer
    int num = 50;
  
    cout << "Before setting the fill char: \n"
         << setw(10);
    cout << num << endl;
  
    // Using setfill()
    cout << "Setting the fill char"
         << " setfill to *: \n"
         << setfill('*')
         << setw(10);
    cout << num << endl;
  
    return 0;
}
Output:
Before setting the fill char: 
        50
Setting the fill char setfill to *: 
********50

Example 2:




// C++ code to demonstrate
// the working of setfill() function
  
#include <iomanip>
#include <ios>
#include <iostream>
  
using namespace std;
  
int main()
{
  
    // Initializing the integer
    int num = 50;
  
    cout << "Before setting the fill char: \n"
         << setw(10);
    cout << num << endl;
  
    cout << "Setting the fill"
         << " char setfill to $: \n"
         << setfill('$')
         << setw(10);
    cout << num << endl;
  
    return 0;
}
Output:
Before setting the fill char: 
        50
Setting the fill char setfill to $: 
$$$$$$$$50

Reference: http://www.cplusplus.com/reference/iomanip/setfill/

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