From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 2 Feb 2014 22:43:51 +0000 (+0000)
Subject: remove self-edges from tdefeats which makes it prettier and makes no difference
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=appendix-a6.git;a=commitdiff_plain;h=158e73beba18676d13fd83d5506de16217bb2c43

remove self-edges from tdefeats which makes it prettier and makes no difference
---

diff --git a/compute b/compute
index 6400382..f9855c7 100755
--- a/compute
+++ b/compute
@@ -280,6 +280,10 @@ for (;;) {
 
     my $tdefeats = $defeats->transitive_closure();
 
+    # this makes the debugging output prettier
+    foreach my $ch (@choices) {
+	$tdefeats->delete_edge($ch,$ch);
+    }
     print "closure graph: $tdefeats\n";
 
     print "\nSchwartz set A.6(6)\n";