[src/trunk]: src/games/gomoku gomoku: use NULL instead of more verbose null p...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7cf1ac15b716
branches:  trunk
changeset: 366244:7cf1ac15b716
user:      rillig <rillig%NetBSD.org@localhost>
date:      Thu May 19 22:29:36 2022 +0000

description:
gomoku: use NULL instead of more verbose null pointer

No binary change.

diffstat:

 games/gomoku/bdinit.c   |   8 ++++----
 games/gomoku/pickmove.c |  26 +++++++++++++-------------
 2 files changed, 17 insertions(+), 17 deletions(-)

diffs (130 lines):

diff -r fd1e0b46e358 -r 7cf1ac15b716 games/gomoku/bdinit.c
--- a/games/gomoku/bdinit.c     Thu May 19 22:24:54 2022 +0000
+++ b/games/gomoku/bdinit.c     Thu May 19 22:29:36 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bdinit.c,v 1.18 2022/05/19 22:19:18 rillig Exp $       */
+/*     $NetBSD: bdinit.c,v 1.19 2022/05/19 22:29:36 rillig Exp $       */
 
 /*
  * Copyright (c) 1994
@@ -34,7 +34,7 @@
 
 #include <sys/cdefs.h>
 /*     from: @(#)bdinit.c      8.2 (Berkeley) 5/3/95   */
-__RCSID("$NetBSD: bdinit.c,v 1.18 2022/05/19 22:19:18 rillig Exp $");
+__RCSID("$NetBSD: bdinit.c,v 1.19 2022/05/19 22:29:36 rillig Exp $");
 
 #include <string.h>
 #include "gomoku.h"
@@ -144,8 +144,8 @@
                sp->s_flags = BFLAGALL;
        }
 
-       sortframes[BLACK] = (struct combostr *)0;
-       sortframes[WHITE] = (struct combostr *)0;
+       sortframes[BLACK] = NULL;
+       sortframes[WHITE] = NULL;
        init_overlap();
 }
 
diff -r fd1e0b46e358 -r 7cf1ac15b716 games/gomoku/pickmove.c
--- a/games/gomoku/pickmove.c   Thu May 19 22:24:54 2022 +0000
+++ b/games/gomoku/pickmove.c   Thu May 19 22:29:36 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pickmove.c,v 1.36 2022/05/19 22:19:18 rillig Exp $     */
+/*     $NetBSD: pickmove.c,v 1.37 2022/05/19 22:29:36 rillig Exp $     */
 
 /*
  * Copyright (c) 1994
@@ -34,7 +34,7 @@
 
 #include <sys/cdefs.h>
 /*     @(#)pickmove.c  8.2 (Berkeley) 5/3/95   */
-__RCSID("$NetBSD: pickmove.c,v 1.36 2022/05/19 22:19:18 rillig Exp $");
+__RCSID("$NetBSD: pickmove.c,v 1.37 2022/05/19 22:29:36 rillig Exp $");
 
 #include <stdlib.h>
 #include <string.h>
@@ -239,7 +239,7 @@
 
        /* check for empty list of frames */
        cbp = sortframes[color];
-       if (cbp == (struct combostr *)0)
+       if (cbp == NULL)
                return;
 
        /* quick check for four in a row */
@@ -358,7 +358,7 @@
                        free(ep);
                        elistcnt--;
                }
-               sp->s_empty = (struct elist *)0;
+               sp->s_empty = NULL;
                for (struct elist *ep = sp->s_nempty; ep != NULL; ep = nep) {
                        cbp = ep->e_combo;
                        if (cbp->c_combo.s <= sp->s_combo[color].s) {
@@ -372,11 +372,11 @@
                        free(ep);
                        elistcnt--;
                }
-               sp->s_nempty = (struct elist *)0;
+               sp->s_nempty = NULL;
        }
 
        /* remove old combos */
-       if ((cbp = sortcombos) != (struct combostr *)0) {
+       if ((cbp = sortcombos) != NULL) {
                struct combostr *ncbp;
 
                /* scan the list */
@@ -386,7 +386,7 @@
                        free(cbp);
                        combocnt--;
                } while ((cbp = ncbp) != ecbp);
-               sortcombos = (struct combostr *)0;
+               sortcombos = NULL;
        }
        combolen = 0;
 
@@ -568,7 +568,7 @@
                        elistcnt--;
                }
                sp->s_empty = sp->s_nempty;
-               sp->s_nempty = (struct elist *)0;
+               sp->s_nempty = NULL;
        }
 
        /* try to add frames to the uncompleted combos at level curlevel */
@@ -618,11 +618,11 @@
        cbpp = &hashcombos[FAREA];
        do {
                cbp = *--cbpp;
-               if (cbp == (struct combostr *)0)
+               if (cbp == NULL)
                        continue;
-               *cbpp = (struct combostr *)0;
+               *cbpp = NULL;
                ecbp = sortcombos;
-               if (ecbp == (struct combostr *)0)
+               if (ecbp == NULL)
                        sortcombos = cbp;
                else {
                        /* append to sort list */
@@ -1045,7 +1045,7 @@
 
        combolen++;
        ncbp = sortcombos;
-       if (ncbp == (struct combostr *)0) {
+       if (ncbp == NULL) {
                sortcombos = cbp;
                cbp->c_next = cbp;
                cbp->c_prev = cbp;
@@ -1246,7 +1246,7 @@
 
        /* now check to see if this list of frames has already been seen */
        cbp = hashcombos[inx = (int)(*scbpp - frames)];
-       if (cbp == (struct combostr *)0) {
+       if (cbp == NULL) {
                /*
                 * Easy case, this list hasn't been seen.
                 * Add it to the hash list.