ios manipulators boolalpha() function in C++
Last Updated :
28 Aug, 2019
The boolalpha() method of stream manipulators in C++ is used to set the boolalpha format flag for the specified str stream.
Syntax:
ios_base& boolalpha (ios_base& str)
Parameters: This method accepts str as a a parameter which is the stream for which the format flag is affected.
Return Value: This method returns the stream str with boolalpha format flag set.
Example 1:
#include <iostream>
using namespace std;
int main()
{
bool flag = true ;
cout << "boolalpha flag: "
<< boolalpha << flag << endl;
return 0;
}
|
Output:
boolalpha flag: true
Example 2:
#include <iostream>
using namespace std;
int main()
{
bool flag = false ;
cout << "boolalpha flag: "
<< boolalpha << flag << endl;
return 0;
}
|
Output:
boolalpha flag: false
Reference: http://www.cplusplus.com/reference/ios/boolalpha/
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