// Strange bug in printf; Nothing is printed until the first newline char.
#include <stdio.h>
#include <conio.h>

void main()
{
  printf("Hello, ");    // Nothing is printed.
  printf("world");      // Still nothing...
  putch('!');           // '!' on screen.
  puts("");             // "Hello, world" on screen.
}                       // Overal: "!Hello, world" instead of "Hello, world!"

Still no bug, 2 minutes after you sent this the first time :-)

(i.e.: see question 190 instead...)