From 081e28d8366ce5a9d6a6ff6cc2ac4fd30ad3e0a6 Mon Sep 17 00:00:00 2001
From: Ward Wouts <ward@wouts.nl>
Date: Sat, 27 Apr 2002 22:10:43 +0000
Subject: [PATCH] fix insert method. it wouldn't insert in empty sets, grmbl

---
 trunk/ripnews/set/intspan.rb | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/trunk/ripnews/set/intspan.rb b/trunk/ripnews/set/intspan.rb
index 7b2a178..a161333 100644
--- a/trunk/ripnews/set/intspan.rb
+++ b/trunk/ripnews/set/intspan.rb
@@ -598,11 +598,14 @@ def member(n)
 end
 
 def insert(n)
-	n or return
-
 	inSet = @set["negInf"]
 	edge = @set["edges"]
 
+	if (edge.length == 0)
+		@set["edges"] = [n-1, n]
+		return
+	end
+
 	if n > edge[-1]+1
 		@set["edges"] += [n-1, n]
 		return
@@ -907,7 +910,7 @@ end	# module
 # [x] infinite
 # [ ] universal
 # [x] member
-# [x] insert
+# [x] insert		# way to much code i think
 # [x] remove
 # [x] min
 # [x] max