From cf8a24cd6baf4f8b101fc1d1edf6c0046d2b9b09 Mon Sep 17 00:00:00 2001
From: brain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Sun, 6 Aug 2006 19:51:15 +0000
Subject: Comments

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@4747 e03df62e-2008-0410-955e-edbf42e46eb7
---
 src/socket.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/socket.cpp b/src/socket.cpp
index c3f0a8d7a..0ad39701f 100644
--- a/src/socket.cpp
+++ b/src/socket.cpp
@@ -28,7 +28,11 @@ extern InspIRCd* ServerInstance;
 extern ServerConfig* Config;
 extern time_t TIME;
 
-/* Used when comparing CIDR masks for the modulus bits left over */
+/* Used when comparing CIDR masks for the modulus bits left over.
+ * A lot of ircd's seem to do this:
+ * ((-1) << (8 - (mask % 8)))
+ * But imho, it sucks in comparison to a nice neat lookup table.
+ */
 const char inverted_bits[8] = {	0x00, /* 00000000 - 0 bits - never actually used */
 				0x80, /* 10000000 - 1 bits */
 				0xC0, /* 11000000 - 2 bits */
-- 
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