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ios manipulators noboolapha() function in C++

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  • Last Updated : 28 Aug, 2019

The noboolalpha() method of stream manipulators in C++ is used to get the integral value of boolapha format flag for the specified str stream.

Syntax:

ios_base& noboolalpha (ios_base& str)

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

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

Example 1:




// C++ code to demonstrate
// the working of noboolalpha() function
  
#include <iostream>
  
using namespace std;
  
int main()
{
  
    // Initializing the boolean flag
    bool flag = true;
  
    // Using noboolalpha()
    cout << "noboolalpha flag: "
         << noboolalpha << flag << endl;
  
    return 0;
}

Output:

noboolalpha flag: 1

Example 2:




// C++ code to demonstrate
// the working of noboolalpha() function
  
#include <iostream>
  
using namespace std;
  
int main()
{
  
    // Initializing the boolean flag
    bool flag = false;
  
    // Using noboolalpha()
    cout << "noboolalpha flag: "
         << noboolalpha << flag << endl;
  
    return 0;
}

Output:

noboolalpha flag: 0

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


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