What is the purpose of the std::io namespace in C++?

What is the purpose of the std::io namespace in C++?

The std::io namespace in C++ is used for input and output operations, providing functionalities for reading and writing data.

Can you give me an example of how to use it?

Sure! You can use std::cin for input and std::cout for output. For example:

#include <iostream>
using namespace std;

int main() {
    int number;
    cout << "Enter a number: ";
    cin >> number;
    cout << "You entered: " << number << endl;
    return 0;
}

What are some common functions in this namespace?

Common functions include std::cin, std::cout, std::cerr for error output, and std::clog for logging.

Are there any alternatives to std::io?

Yes, alternatives include using C-style I/O functions like printf and scanf, or libraries like Boost for more advanced I/O.