From 741982354e468273d97e889bb03b799cf5247f7d Mon Sep 17 00:00:00 2001
From: simon <simon@cda61777-01e9-0310-a592-d414129be87e>
Date: Sun, 29 Oct 2006 09:34:09 +0000
Subject: [PATCH] r6880 accidentally backed out r6780. That's what I get for
 accepting source files from Mike rather than patches, and not adequately
 checking the result...

git-svn-id: svn://svn.tartarus.org/sgt/puzzles@6882 cda61777-01e9-0310-a592-d414129be87e
---
 dsf.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/dsf.c b/dsf.c
index f4deb1e..207357d 100644
--- a/dsf.c
+++ b/dsf.c
@@ -60,17 +60,23 @@ done:
     sfree(inverse_elements);
 }
 
-int *snew_dsf(int size)
+void dsf_init(int *dsf, int size)
 {
     int i;
-    int *ret;
-    
-    ret = snewn(size, int);
+
     for (i = 0; i < size; i++) {
         /* Bottom bit of each element of this array stores whether that element
          * is opposite to its parent, which starts off as false */
-        ret[i] = i << 1; 
+        dsf[i] = i << 1;
     }
+}
+
+int *snew_dsf(int size)
+{
+    int *ret;
+    
+    ret = snewn(size, int);
+    dsf_init(ret, size);
 
     /*print_dsf(ret, size); */
 
-- 
2.11.0