C non-blocking keyboard input

Question

I\'m trying to write a program in C (on Linux) that loops until the user presses a key, but shouldn\'t require a keypress to continue each loop.

Is there a simple wa

Answer 1

select() is a bit too low-level for convenience. I suggest you use the ncurses library to put the terminal in cbreak mode and delay mode, then call getch(), which will return ERR if no character is ready:

WINDOW *w = initscr();
cbreak();
nodelay(w, TRUE);

At that point you can call getch without blocking.