/****************************************************************************
- * Copyright 2018-2020,2021 Thomas E. Dickey *
+ * Copyright 2018-2021,2022 Thomas E. Dickey *
* Copyright 1998-2013,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* Eric S. Raymond <esr@snark.thyrsus.com> July 22 1995. Mouse support
* added September 20th 1995.
*
- * $Id: knight.c,v 1.48 2021/04/25 00:10:43 tom Exp $
+ * $Id: knight.c,v 1.52 2022/12/04 00:40:11 tom Exp $
*/
#include <test.priv.h>
for (i = 0; i < ylimit; i++) {
for (j = 0; j < xlimit; j++) {
- squares[i][j] = FALSE;
unmarkcell(i, j);
}
}
+ memset(squares, 0, sizeof(squares));
memset(history, 0, sizeof(history));
history[0].y = history[0].x = -1;
history[1].y = history[1].x = -1;
}
static void
-usage(void)
+usage(int ok)
{
static const char *msg[] =
{
"Usage: knight [options]"
,""
+ ,USAGE_COMMON
,"Options:"
#if HAVE_USE_DEFAULT_COLORS
," -d invoke use_default_colors"
for (n = 0; n < SIZEOF(msg); n++)
fprintf(stderr, "%s\n", msg[n]);
- ExitProgram(EXIT_FAILURE);
+ ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
}
+/* *INDENT-OFF* */
+VERSION_COMMON()
+/* *INDENT-ON* */
int
main(int argc, char *argv[])
{
int ch;
- while ((ch = getopt(argc, argv, "dn:")) != -1) {
+ while ((ch = getopt(argc, argv, OPTS_COMMON "dn:")) != -1) {
switch (ch) {
#if HAVE_USE_DEFAULT_COLORS
case 'd':
ch = atoi(optarg);
if (ch < 3 || ch > 8) {
fprintf(stderr, "board size %d is outside [3..8]\n", ch);
- usage();
+ usage(FALSE);
}
xlimit = ylimit = ch;
break;
+ case OPTS_VERSION:
+ show_version(argv);
+ ExitProgram(EXIT_SUCCESS);
default:
- usage();
+ usage(ch == OPTS_USAGE);
/* NOTREACHED */
}
}
if (optind < argc)
- usage();
+ usage(FALSE);
init_program();