[gnugo-devel] snapback in readconnect.c

[Teun Burgers]

It looks to me the snapback function in readconnect.c
uses only the first liberty. So we only need to fetch
one liberty from findlib instead of up to MAXLIBS.

Or am I missing something?

Teun

Index: readconnect.c
===================================================================
RCS file: /cvsroot/gnugo/gnugo/engine/readconnect.c,v
retrieving revision 1.9
diff -u -r1.9 readconnect.c
--- readconnect.c       2001/10/28 13:53:25     1.9
+++ readconnect.c       2001/11/02 18:42:35
@@ -97,7 +97,7 @@
 /* verifies that capturing the stone at str is not a snapback */
 
 static int snapback (int str) {
-  int stones, liberties, libs[MAXLIBS];
+  int stones, liberties, lib;
 
   /* if more than one stone captured, not a snapback */
   stones = countstones(str);
@@ -105,16 +105,16 @@
     return 0;
 
   /* if more than one liberty, not a snapback */
-  liberties = findlib(str, MAXLIBS, libs);
+  liberties = findlib(str, 1, &lib);
   if (liberties > 1)
     return 0;
 
   /* if only one liberty after capture */
-  if (trymove(libs[0], OTHER_COLOR(board[str]),
+  if (trymove(lib, OTHER_COLOR(board[str]),
              "snapback", str, EMPTY, 0)) {
-    liberties=0;
-    if (IS_STONE(board[libs[0]]))
-      liberties = countlib(libs[0]);
+    liberties = 0;
+    if (IS_STONE(board[lib]))
+      liberties = countlib(lib);
     popgo();
     if (liberties > 1)
       return 0;