gomoku: convert input source constants to an enum

I also tried converting other macros, but s_occ would use more memory
and the return values for makemove are special values, besides the usual
coordinates in the form PT(x, y), so turning the special values into an
enum would be confusing.

No functional change.
This commit is contained in:
rillig 2022-05-21 14:55:26 +00:00
parent 7e168a678f
commit 1425a8ae20
3 changed files with 13 additions and 10 deletions

View File

@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.9 2022/05/16 21:48:45 rillig Exp $
# $NetBSD: Makefile,v 1.10 2022/05/21 14:55:26 rillig Exp $
# @(#)Makefile 8.1 (Berkeley) 7/24/94
PROG= gomoku
@ -11,5 +11,6 @@ CPPFLAGS+= ${DEBUG:D-DDEBUG}
LINTFLAGS+= -w # treat warnings as errors
LINTFLAGS+= -T # strict bool mode
LINTFLAGS+= -e # strict enum checks
.include <bsd.prog.mk>

View File

@ -1,4 +1,4 @@
/* $NetBSD: gomoku.h,v 1.33 2022/05/21 12:29:34 rillig Exp $ */
/* $NetBSD: gomoku.h,v 1.34 2022/05/21 14:55:26 rillig Exp $ */
/*
* Copyright (c) 1994
@ -59,14 +59,13 @@
#define EMPTY 2
#define BORDER 3
/* return values for makemove() */
/* return values for makemove, readinput */
#define MOVEOK 0
#define RESIGN 1
#define ILLEGAL 2
#define WIN 3
#define TIE 4
#define SAVE 5
#define PT(x, y) ((x) + (BSZ + 1) * (y))
/*

View File

@ -1,4 +1,4 @@
/* $NetBSD: main.c,v 1.46 2022/05/21 14:23:10 rillig Exp $ */
/* $NetBSD: main.c,v 1.47 2022/05/21 14:55:26 rillig Exp $ */
/*
* Copyright (c) 1994
@ -36,7 +36,7 @@
__COPYRIGHT("@(#) Copyright (c) 1994\
The Regents of the University of California. All rights reserved.");
/* @(#)main.c 8.4 (Berkeley) 5/4/95 */
__RCSID("$NetBSD: main.c,v 1.46 2022/05/21 14:23:10 rillig Exp $");
__RCSID("$NetBSD: main.c,v 1.47 2022/05/21 14:55:26 rillig Exp $");
#include <sys/stat.h>
#include <curses.h>
@ -51,9 +51,11 @@ __RCSID("$NetBSD: main.c,v 1.46 2022/05/21 14:23:10 rillig Exp $");
#include "gomoku.h"
#define USER 0 /* get input from standard input */
#define PROGRAM 1 /* get input from program */
#define INPUTF 2 /* get input from a file */
enum input_source {
USER, /* get input from standard input */
PROGRAM, /* get input from program */
INPUTF /* get input from a file */
};
bool interactive = true; /* true if interactive */
int debug; /* > 0 if debugging */
@ -102,7 +104,7 @@ main(int argc, char **argv)
char fname[PATH_MAX];
char *user_name;
int color, curmove, i, ch;
int input[2];
enum input_source input[2];
/* Revoke setgid privileges */
setgid(getgid());
@ -235,6 +237,7 @@ again:
curmove = readinput(inputfp);
if (curmove != ILLEGAL)
break;
/* Switch to another input source. */
switch (test) {
case 0: /* user versus program */
input[color] = USER;