From c71e9b2cd792bbd0ec736d8676be5cde52df0cf9 Mon Sep 17 00:00:00 2001
From: Dimitri Lozeve <dimitri@lozeve.com>
Date: Thu, 11 Jun 2020 19:31:22 +0200
Subject: [PATCH] Move normalized_edit_distance function to distance.c

---
 src/distance.c  | 12 ++++++++++++
 src/distance.h  |  3 +++
 src/ex06/main.c | 11 -----------
 3 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/src/distance.c b/src/distance.c
index fca6cd3..0426d44 100644
--- a/src/distance.c
+++ b/src/distance.c
@@ -12,3 +12,15 @@ unsigned int hamming(size_t len, const unsigned char s1[static len],
   }
   return res;
 }
+
+double normalized_edit_distance(
+    unsigned int block_size, unsigned int blocks_count,
+    const unsigned char buf[static block_size * blocks_count]) {
+  double avg_dist = 0;
+  for (size_t i = 0; i < blocks_count - 1; ++i) {
+    avg_dist +=
+        hamming(block_size, &buf[i * block_size], &buf[(i + 1) * block_size]);
+  }
+
+  return avg_dist / (double)block_size / ((double)blocks_count - 1.0);
+}
diff --git a/src/distance.h b/src/distance.h
index a2231e1..5664b27 100644
--- a/src/distance.h
+++ b/src/distance.h
@@ -5,5 +5,8 @@
 
 unsigned int hamming(size_t len, const unsigned char s1[static len],
                      const unsigned char s2[static len]);
+double normalized_edit_distance(
+    unsigned int block_size, unsigned int blocks_count,
+    const unsigned char buf[static block_size * blocks_count]);
 
 #endif /* DISTANCE_H */
diff --git a/src/ex06/main.c b/src/ex06/main.c
index 46c63d3..2de983c 100644
--- a/src/ex06/main.c
+++ b/src/ex06/main.c
@@ -8,17 +8,6 @@
 
 #define BUF_SIZE 4096
 
-double normalized_edit_distance(
-    unsigned int keysize, unsigned int blocks_count,
-    const unsigned char buf[static keysize * blocks_count]) {
-  double avg_dist = 0;
-  for (size_t i = 0; i < blocks_count - 1; ++i) {
-    avg_dist += hamming(keysize, &buf[i * keysize], &buf[(i + 1) * keysize]);
-  }
-
-  return avg_dist / (double)keysize / ((double)blocks_count - 1.0);
-}
-
 int main(int argc, char *argv[]) {
   if (argc < 2) {
     printf("Usage: %s <filename>\n", argv[0]);