From d86f781ca54faf13bab50b2817cbce82546b0760 Mon Sep 17 00:00:00 2001
From: alberth <alberth@openttd.org>
Date: Sat, 2 Oct 2010 19:43:29 +0000
Subject: [PATCH] (svn r20884) -Codechange: Make clear_Hash a method.

---
 src/pathfinder/npf/aystar.cpp |  4 ++--
 src/pathfinder/npf/queue.cpp  | 19 +++++++++++--------
 src/pathfinder/npf/queue.h    |  6 ++----
 3 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/src/pathfinder/npf/aystar.cpp b/src/pathfinder/npf/aystar.cpp
index 4ef8cbfbed..9eda4a3a72 100644
--- a/src/pathfinder/npf/aystar.cpp
+++ b/src/pathfinder/npf/aystar.cpp
@@ -216,8 +216,8 @@ void AyStar::Clear()
 	 * the hash. */
 	this->OpenListQueue.Clear(false);
 	/* Clean the hashes */
-	clear_Hash(&this->OpenListHash, true);
-	clear_Hash(&this->ClosedListHash, true);
+	this->OpenListHash.Clear(true);
+	this->ClosedListHash.Clear(true);
 
 #ifdef AYSTAR_DEBUG
 	printf("[AyStar] Cleared AyStar\n");
diff --git a/src/pathfinder/npf/queue.cpp b/src/pathfinder/npf/queue.cpp
index eac77145b7..0c8573e368 100644
--- a/src/pathfinder/npf/queue.cpp
+++ b/src/pathfinder/npf/queue.cpp
@@ -346,23 +346,26 @@ static void stat_Hash(const Hash *h)
 }
 #endif
 
-void clear_Hash(Hash *h, bool free_values)
+/**
+ * Cleans the hash, but keeps the memory allocated
+ */
+void Hash::Clear(bool free_values)
 {
 	uint i;
 
 #ifdef HASH_STATS
-	if (h->size > 2000) stat_Hash(h);
+	if (this->size > 2000) stat_Hash(this);
 #endif
 
 	/* Iterate all buckets */
-	for (i = 0; i < h->num_buckets; i++) {
-		if (h->buckets_in_use[i]) {
+	for (i = 0; i < this->num_buckets; i++) {
+		if (this->buckets_in_use[i]) {
 			HashNode *node;
 
-			h->buckets_in_use[i] = false;
+			this->buckets_in_use[i] = false;
 			/* Free the first value */
-			if (free_values) free(h->buckets[i].value);
-			node = h->buckets[i].next;
+			if (free_values) free(this->buckets[i].value);
+			node = this->buckets[i].next;
 			while (node != NULL) {
 				HashNode *prev = node;
 
@@ -372,7 +375,7 @@ void clear_Hash(Hash *h, bool free_values)
 			}
 		}
 	}
-	h->size = 0;
+	this->size = 0;
 }
 
 /**
diff --git a/src/pathfinder/npf/queue.h b/src/pathfinder/npf/queue.h
index efe5301a9c..f6f04e6bb7 100644
--- a/src/pathfinder/npf/queue.h
+++ b/src/pathfinder/npf/queue.h
@@ -91,6 +91,8 @@ struct Hash {
 
 	void *DeleteValue(uint key1, uint key2);
 
+	void Clear(bool free_values);
+
 	/**
 	 * Gets the current size of the hash.
 	 */
@@ -116,9 +118,5 @@ void init_Hash(Hash *h, Hash_HashProc *hash, uint num_buckets);
  * are left in the hash.
  */
 void delete_Hash(Hash *h, bool free_values);
-/**
- * Cleans the hash, but keeps the memory allocated
- */
-void clear_Hash(Hash *h, bool free_values);
 
 #endif /* QUEUE_H */