From 135ed3aab0757e3a26fd381a927e2825ae2c6479 Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordu.net>
Date: Mon, 9 May 2016 13:22:58 +0200
Subject: Document keypart().

---
 c_src/permdb.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'c_src/permdb.c')

diff --git a/c_src/permdb.c b/c_src/permdb.c
index ea0fc91..7abc8ed 100644
--- a/c_src/permdb.c
+++ b/c_src/permdb.c
@@ -500,6 +500,10 @@ keybits(const unsigned char *key, unsigned int level)
         return (b >> (6 - 2*mlev)) & 0x3;
 }
 
+/*
+ * Extracts the parts of KEY used for traversing a tree down to LEVEL
+ * and write an ASCII representation to S.
+ */
 static void
 keypart(const unsigned char *key, unsigned int level, ps_string *s)
 {
-- 
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