/*
 * Problem 1-2
 * Invalid control character in printf
 * Copyright (c) 1998 by John Weber.  All rights reserved.
 */
#include <stdio.h>

int main(void)
{
	printf("Hello, world!\c");
}

/*
 This results in a compilation error:
 problem-1-2.c:10:16: warning: unknown escape sequence '\c'
 */