#include <stdio.h>
#include <stdio.h>
#include <termios.h>
#include <unistd.h>
static struct termios initial_settings, new_settings;
static int peek_character = -1;
int kbhit()
{
char ch;
int nread;
if(peek_character != -1)
return 1;
new_settings.c_cc[VMIN]=0;
tcsetattr(0, TCSANOW, &new_settings);
nread = read(0,&ch,1);
new_settings.c_cc[VMIN]=1;
tcsetattr(0, TCSANOW, &new_settings);
if(nread == 1) {
peek_character = ch;
return 1;
}
return 0;
}
int main(void) {
if(kbhit()) printf("Hello World!\n");
return 0;
}
