From: Eric S. Raymond <esr@thyrsus.com>
Date: Fri, 7 Jan 2005 17:15:48 +0000 (+0000)
Subject: Document an edge case.
X-Git-Tag: 2.7~2
X-Git-Url: http://thyrsus.com/gitweb/?a=commitdiff_plain;h=d3c7055a4e11d1e9477e5772f68c194dbc095e39;p=comparator.git

Document an edge case.
---

diff --git a/comparator.xml b/comparator.xml
index c1d2e58..ae4ba79 100644
--- a/comparator.xml
+++ b/comparator.xml
@@ -304,6 +304,11 @@ almost ridiculously fast on machines with enough core (the author has
 observed speeds of up to two million lines of code compared per minute
 on a 1.8GHz Intel box), but machines with small memories will thrash
 their guts out as the VM subsystem tries to cope.</para>
+
+<para>Comparing a directory to itself will show no similarities.  This
+is because the algorithm ignores matching shreds from within a
+single directory, and it only knows which directory a shred came from
+by relative pathname.</para>
 </refsect1>
 </refentry>