From f65b0ae82a0f192ceb58c9f03df1ef830b09e9e0 Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Fri, 14 Jun 2013 12:50:39 +0200
Subject: [PATCH] commentation

---
 src/backends/contextfree.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/backends/contextfree.h b/src/backends/contextfree.h
index 3f01d708..b387e55d 100644
--- a/src/backends/contextfree.h
+++ b/src/backends/contextfree.h
@@ -11,7 +11,8 @@ struct HCFStack_ {
   int count;
   int cap;
   HCFChoice *last_completed; // Last completed choice.
-  HCFChoice *prealloc;       // If not NULL, will serve as outermost choice.
+                             // XXX is last_completed still needed?
+  HCFChoice *prealloc; // If not NULL, will be used for the outermost choice.
 };
 
 #ifndef UNUSED
-- 
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