Add use of `const' where appropriate to the games.

This merges in all such remaining changes from the Linux port of the
NetBSD games, except in hunt (where substantial changes from OpenBSD
need to be looked at).

Some such changes were previously covered in PRs bin/6041, bin/6146,
bin/6148, bin/6150, bin/6151, bin/6580, bin/6660, bin/7993, bin/7994,
bin/8039, bin/8057 and bin/8093.

4 files changed, 29 insertions, 31 deletions

diff --git a/snake/snake/move.c b/snake/snake/move.c
index 4620e02a..2308aeb5 100644
--- a/snake/snake/move.c
+++ b/snake/snake/move.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: move.c,v 1.16 1999/08/14 16:38:45 tron Exp $	*/
+/*	$NetBSD: move.c,v 1.17 1999/09/08 21:17:59 jsm Exp $	*/
 
 /*
  * Copyright (c) 1980, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)move.c	8.1 (Berkeley) 7/19/93";
 #else
-__RCSID("$NetBSD: move.c,v 1.16 1999/08/14 16:38:45 tron Exp $");
+__RCSID("$NetBSD: move.c,v 1.17 1999/09/08 21:17:59 jsm Exp $");
 #endif
 #endif				/* not lint */
 
@@ -192,7 +192,7 @@ move(sp)
 
 void
 gto(sp)
-	struct point *sp;
+	const struct point *sp;
 {
 
 	int     distance, f, tfield;
@@ -264,7 +264,7 @@ gto(sp)
 
 void
 right(sp)
-	struct point *sp;
+	const struct point *sp;
 {
 	int     field, tfield;
 	int     tabcol, strlength;
@@ -429,10 +429,10 @@ pch(c)
 
 void
 #if __STDC__
-apr(struct point * ps, const char *fmt,...)
+apr(const struct point * ps, const char *fmt,...)
 #else
 apr(ps, fmt, va_alist)
-	struct point *ps;
+	const struct point *ps;
 	char   *fmt;
 va_dcl
 #endif
@@ -512,7 +512,7 @@ pstring(s)
 
 void
 pchar(ps, ch)
-	struct point *ps;
+	const struct point *ps;
 	char    ch;
 {
 	struct point p;
@@ -546,7 +546,7 @@ outch(c)
 
 void
 putpad(str)
-	char *str;
+	const char *str;
 {
 	if (str)
 		tputs(str, 1, outch);
diff --git a/snake/snake/snake.c b/snake/snake/snake.c
index eaa30b81..49507b59 100644
--- a/snake/snake/snake.c
+++ b/snake/snake/snake.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: snake.c,v 1.9 1997/10/12 01:49:28 lukem Exp $	*/
+/*	$NetBSD: snake.c,v 1.10 1999/09/08 21:17:59 jsm Exp $	*/
 
 /*
  * Copyright (c) 1980, 1993
@@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
 #if 0
 static char sccsid[] = "@(#)snake.c	8.2 (Berkeley) 1/7/94";
 #else
-__RCSID("$NetBSD: snake.c,v 1.9 1997/10/12 01:49:28 lukem Exp $");
+__RCSID("$NetBSD: snake.c,v 1.10 1999/09/08 21:17:59 jsm Exp $");
 #endif
 #endif				/* not lint */
 
@@ -547,13 +547,13 @@ flushi()
 	tcflush(0, TCIFLUSH);
 }
 
-int     mx[8] = {
+const int     mx[8] = {
 	0, 1, 1, 1, 0, -1, -1, -1
 };
-int     my[8] = {
+const int     my[8] = {
 	-1, -1, 0, 1, 1, 1, 0, -1
 };
-float   absv[8] = {
+const float   absv[8] = {
 	1, 1.4, 1, 1.4, 1, 1.4, 1, 1.4
 };
 int     oldw = 0;
@@ -626,7 +626,7 @@ spacewarp(w)
 {
 	struct point p;
 	int     j;
-	char   *str;
+	const char   *str;
 
 	snrand(&you);
 	point(&p, COLUMNS / 2 - 8, LINES / 2 - 1);
@@ -693,7 +693,7 @@ snap()
 
 int
 stretch(ps)
-	struct point *ps;
+	const struct point *ps;
 {
 	struct point p;
 
@@ -771,7 +771,7 @@ surround(ps)
 
 void
 win(ps)
-	struct point *ps;
+	const struct point *ps;
 {
 	struct point x;
 	int     j, k;
@@ -854,7 +854,7 @@ pushsnake()
 
 int
 chk(sp)
-	struct point *sp;
+	const struct point *sp;
 {
 	int     j;
 
diff --git a/snake/snake/snake.h b/snake/snake/snake.h
index 1952385d..0199ff52 100644
--- a/snake/snake/snake.h
+++ b/snake/snake/snake.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: snake.h,v 1.11 1999/08/14 16:38:46 tron Exp $	*/
+/*	$NetBSD: snake.h,v 1.12 1999/09/08 21:18:00 jsm Exp $	*/
 
 /*
  * Copyright (c) 1980, 1993
@@ -81,10 +81,10 @@ struct termios orig, new;
 #define	same(s1, s2)	((s1)->line == (s2)->line && (s1)->col == (s2)->col)
 
 
-void		apr __P((struct point *, const char *, ...));
+void		apr __P((const struct point *, const char *, ...));
 void		bs __P((void));
 void		chase __P((struct point *, struct point *));
-int		chk __P((struct point *));
+int		chk __P((const struct point *));
 void		clear __P((void));
 void		cook __P((void));
 void		cr __P((void));
@@ -94,7 +94,7 @@ void		down __P((void));
 void		drawbox __P((void));
 void		flushi __P((void));
 void		getcap __P((void));
-void		gto __P((struct point *));
+void		gto __P((const struct point *));
 void		home __P((void));
 void		length __P((int));
 void		ll __P((void));
@@ -104,25 +104,23 @@ void		move __P((struct point *));
 void		nd __P((void));
 void		outch __P((int));
 void		pch __P((int));
-void		pchar __P((struct point *, char));
+void		pchar __P((const struct point *, char));
 struct point   *point __P((struct point *, int, int));
 int		post __P((int, int));
 void		pr __P((const char *, ...));
 void		pstring __P((const char *));
 int		pushsnake __P((void));
-void		putpad __P((char *));
+void		putpad __P((const char *));
 void		raw __P((void));
-void		right __P((struct point *));
+void		right __P((const struct point *));
 void		setup __P((void));
 void		snap __P((void));
-void		snap __P((void));
 void		snrand __P((struct point *));
 void		spacewarp __P((int));
 void		stop __P((int)) __attribute__((__noreturn__));
-int		stretch __P((struct point *));
-int		stretch __P((struct point *));
+int		stretch __P((const struct point *));
 void		surround __P((struct point *));
 void		suspend __P((void));
 void		up __P((void));
-void		win __P((struct point *));
+void		win __P((const struct point *));
 void		winnings __P((int));
diff --git a/snake/snscore/snscore.c b/snake/snscore/snscore.c
index 48d99f78..b5f57cf3 100644
--- a/snake/snscore/snscore.c
+++ b/snake/snscore/snscore.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: snscore.c,v 1.8 1998/09/11 14:25:22 hubertf Exp $	*/
+/*	$NetBSD: snscore.c,v 1.9 1999/09/08 21:18:00 jsm Exp $	*/
 
 /*
  * Copyright (c) 1980, 1993
@@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
 #if 0
 static char sccsid[] = "@(#)snscore.c	8.1 (Berkeley) 7/19/93";
 #else
-__RCSID("$NetBSD: snscore.c,v 1.8 1998/09/11 14:25:22 hubertf Exp $");
+__RCSID("$NetBSD: snscore.c,v 1.9 1999/09/08 21:18:00 jsm Exp $");
 #endif
 #endif /* not lint */
 
@@ -55,7 +55,7 @@ __RCSID("$NetBSD: snscore.c,v 1.8 1998/09/11 14:25:22 hubertf Exp $");
 #include <string.h>
 #include "pathnames.h"
 
-char *recfile = _PATH_RAWSCORES;
+const char *recfile = _PATH_RAWSCORES;
 #define MAXPLAYERS 256
 
 struct	player	{