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ios manipulators showbase() function in C++

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  • Last Updated : 21 Sep, 2021
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The showbase() method of stream manipulators in C++ is used to set the showbase format flag for the specified str stream. This flag displays the integers along with their base prefixes.

Syntax: 

ios_base& showbase (ios_base& str)

Parameters: This method accepts str as a parameter which is the stream for which the format flag is affected.

Return Value: This method returns the stream str with showbase format flag set.

Example 1: 

C++




// C++ code to demonstrate
// the working of showbase() function
 
#include <iostream>
 
using namespace std;
 
int main()
{
 
    // Initializing the integer
    int num = 50;
 
    // Using showbase()
    cout << "showbase flag: "
         << hex
         << showbase
         << num << endl;
 
    return 0;
}

Output: 

showbase flag: 0x32

 

Example 2:

C++




// C++ code to demonstrate
// the working of showbase() function
 
#include <iostream>
 
using namespace std;
 
int main()
{
 
    // Initializing the integer
    int num = 50;
 
    // Using showbase()
    cout << "showbase flag: "
         << oct
         << showbase
         << num << endl;
 
    return 0;
}

Output: 

showbase flag: 062

 

Reference: http://www.cplusplus.com/reference/ios/showbase/
 


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