Thread: Using boolalpha to print true and false but a little confused here

I'm using the iomanip header and boolalpha to print the words "true" and "false". I have a program that demonstrates a simple use of boolean variables. It goes like this:

Code:

#include <iomanip>
#include <conio.h>
using namespace std;

int main()
{
    bool b;
    
    b = false;
    
    cout << "b is " << b << endl;
    cout << "In other words, b is " << boolalpha << b << endl << endl;
    
    b = true;
    
    cout << "b is " << b << endl;
    cout << "In other words, b is " << boolalpha << b << endl << endl;
    
    if(b)
        cout << "Karen has a boatload of problems, but she's not all bad." << endl;
        
    b = false;
    
    if(b)
        cout << "Jerry is a nice guy...but actually that's a lie" << endl;
        
    cout << "13 > 11 is " << (13 > 11);
    
    getch();
    return 0;
}

When I run it the first two cout statements look fine:

b is 0
In other words, b is false

No problem there but when I run the next two cout statements I see this:

b is true
In other words, b is true

So I'm wondering why the compiler is not printing "b is 1" before I specifically instruct it to print "b is true" in the following statement?

I'm guessing that when I use boolalpha for the first time in the cout statement, that is setting it for the rest of the program? Do I need to shut it off before I use it again?