From: SHIRAKATA Kentaro <argrath@ub32.org>
Date: Mon, 21 Mar 2022 11:31:41 +0000 (+0900)
Subject: move null-check on savelev()
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=291d872f622dd926e56109544f4681896fa146a3;p=nethack

move null-check on savelev()

Move null-check of ttmp before its first use.
---

diff --git a/src/trap.c b/src/trap.c
index 406890a9a..012ab4b71 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -3025,11 +3025,14 @@ find_random_launch_coord(struct trap *ttmp, coord *cc)
     int mindist = 4;
     int trycount = 0;
     xchar dx, dy;
-    xchar x = ttmp->tx, y = ttmp->ty;
+    xchar x, y;
 
     if (!ttmp || !cc)
         return FALSE;
 
+    x = ttmp->tx;
+    y = ttmp->ty;
+
     bcc.x = ttmp->tx + g.launchplace.x;
     bcc.y = ttmp->ty + g.launchplace.y;
     if (isok(bcc.x, bcc.y) && linedup(ttmp->tx, ttmp->ty, bcc.x, bcc.y, 1)) {