iomanip setbase() function in C++ with Examples

The setbase() method of iomanip library in C++ is used to set the ios library basefield flag based on the argument specified as the parameter to this method. 

Syntax:

setbase (int base)

Parameters: This method accepts base as a parameter which is the integer argument corresponding to which the base is to be set. 10 stands for dec, 16 stands for hex, 8 stands for oct, and any other value stands for 0 (reset). 

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

Example 1:

CPP

// C++ code to demonstrate
// the working of setbase() function

#include <iomanip>
#include <ios>
#include <iostream>

using namespace std;

int main()
{

    // Initializing the integer
    int num = 50;

    cout << "Before set: \n"
         << num << endl;

    // Using setbase()
    cout << "Setting base to hex"
         << " using setbase: \n"
         << setbase(16)
         << num << endl;

    return 0;
}

Output:

Before set: 
50
Setting base to hex using setbase: 
32

Example 2:

CPP

// C++ code to demonstrate
// the working of setbase() function

#include <iomanip>
#include <ios>
#include <iostream>

using namespace std;

int main()
{

    // Initializing the integer
    int num = 50;

    cout << "Before set: \n"
         << num << endl;

    // Using setbase()
    cout << "Setting base to oct"
         << " using setbase: \n"
         << setbase(8)
         << num << endl;

    return 0;
}

Output:

Before set: 
50
Setting base to oct using setbase: 
62

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