c++ - Using kbhit() and getch() on Linux

Question

On Windows, I have the following code to look for input without interrupting the loop:

#include <conio.h>
#include <Windows.h>
#include <iostream>

int main()
{
    while (true)
    {
        if (_kbhit())
        {
            if (_getch() == 'g')
            {
                std::cout << "You pressed G" << std::endl;
            }
        }
        Sleep(500);
        std::cout << "Running" << std::endl;
    }
}

However, seeing that there is no conio.h, whats the simplest way of achieving this very same thing on Linux?

Answer 1

If your linux has no conio.h that supports kbhit() you can look here for Morgan Mattews's code to provide kbhit() functionality in a way compatible with any POSIX compliant system.

As the trick desactivate buffering at termios level, it should also solve the getchar() issue as demonstrated here.