From b184e675ec3de30b4a2daf2c2a77260790e4e3bf Mon Sep 17 00:00:00 2001
From: Luc <luc@gluc.ch>
Date: Fri, 26 Jan 2018 14:20:07 +0100
Subject: [PATCH] add comment

---
 sweet_geometry.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sweet_geometry.c b/sweet_geometry.c
index 01ffa88..3436a07 100644
--- a/sweet_geometry.c
+++ b/sweet_geometry.c
@@ -98,9 +98,10 @@ face_free (struct face_item * root)
 struct item
 {
     struct item * next;
-    unsigned int a;
+
+    unsigned int a; // a, b = Key
     unsigned int b;
-    unsigned int id;
+    unsigned int id; // id = Value
 };
 
 #define MAP_SIZE    8192