C++ Program For Boolean to String Conversion

A Boolean value has two possible states: true and false, represented as 1 and 0. In C++, Boolean values can be converted to their textual representation using a custom function or the boolalpha stream manipulator.

• true and false represent the two Boolean states.
• boolalpha displays Boolean values as true or false instead of 1 or 0.

Examples:

Input: true
Output: true

Input: false
Output: false

Methods to Convert Boolean to String

The Boolean value can be converted to its string representation using the following approaches:

1. Using a Custom Conversion Function

Define a function that checks the Boolean value and returns the corresponding string.

#include <iostream>
#include <string>
using namespace std;

// Function to convert bool to string
string boolToString(bool value)
{
    if (value)
        return "true";

    return "false";
}

int main()
{
    bool value = true;

    cout << boolToString(value) << endl;

    return 0;
} 

true

Explanation: The boolToString() function checks the Boolean value and returns:

• "true" when the value is true.
• "false" when the value is false.

2. Using the boolalpha Stream Manipulator

By default, cout displays Boolean values as 1 and 0. The boolalpha manipulator changes this behavior to display true and false.

#include <iostream>
using namespace std;

int main()
{
    bool value = true;

    // Display bool as 1 or 0
    cout << "Before boolalpha: "
         << value << endl;

    // Display bool as true or false
    cout << "After boolalpha: "
         << boolalpha << value << endl;

    return 0;
}      

Before boolalpha: 1
After boolalpha: true

Explanation: Before applying boolalpha, cout displays the Boolean value as 1. After applying boolalpha, the same value is displayed as true.