/*
   This is a demonstration C source file, used for the c2html user manual.
*/
#include <stdio.h>

#define NUM_ARGS		2
#define ERR_INVALLID_NUM_ARGS	1
#define ERR_UNREC_ARG		2

int main (int argc, char *argv[])
{
	if (argc != NUM_ARGS) /* If the number of arguments is not correct */
	{
		printf ("ERROR: invallid number of arguments\n");
		exit (ERR_INVALLID_NUM_ARGS);
	}
	if (*argv[1] != '-')
	{
		printf ("ERROR: unrecognized option '%s'\n", argv[1]);
		exit (ERR_UNREC_ARG);
	}
	switch (argv[1][1])
	{
		case 'b':
			printf ("Bla\n");
			break;
		case 'h':
			printf ("Hello world\n");
			break;
		default:
			printf ("ERROR: unrecognized option '%s'\n", argv[1]);
			exit (ERR_UNREC_ARG);
			break;
	}
	exit (0);
}