From 3539cd9a718100482be7139f330038ebe3ae0b98 Mon Sep 17 00:00:00 2001
From: Claudio Maggioni <claudio@maggioni.xyz>
Date: Wed, 11 Dec 2019 10:52:39 +0100
Subject: [PATCH] Removed debug messages from hashtable

---
 chess_paths/chess_paths.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/chess_paths/chess_paths.c b/chess_paths/chess_paths.c
index e19457d..facdf6c 100644
--- a/chess_paths/chess_paths.c
+++ b/chess_paths/chess_paths.c
@@ -155,8 +155,8 @@ struct position* bishop_positions(const struct chessboard* board,
 struct position* queen_positions(const struct chessboard* c,
         struct piece_position* p) {
 
-    struct position* malusa = bishop_positions(c, p);
-    return rook_positions(c, p, malusa);
+    struct position* canotaggio = bishop_positions(c, p);
+    return rook_positions(c, p, canotaggio);
 }
 
 struct position* get_positions(const struct chessboard* c,
@@ -262,7 +262,10 @@ struct row_list {
 };
 
 typedef struct row_list* visit_table;
+
+#if DEBUG
 unsigned long alloc = 0;
+#endif
 
 unsigned long table_total_size(const struct chessboard*);
 unsigned long table_hash(const struct chessboard*, unsigned, unsigned);
@@ -273,12 +276,18 @@ inline unsigned long table_total_size(const struct chessboard* c) {
 
 inline unsigned long table_hash(const struct chessboard* c, unsigned col,
         unsigned row) {
-    return (value_at(c, col, row) ^ 0xDEADBEEF) % table_total_size(c);
+    return (value_at(c, col, row) ^ (('C'|'a') << 24 | ('r'|'z') << 16 |
+                ('a'|'n') << 8 | ('i'|'g'|'a')))
+            % table_total_size(c);
 }
 
 visit_table* table_new(const struct chessboard* c) {
     unsigned long table_size = table_total_size(c);
+
+#if DEBUG
     alloc += sizeof(struct row_list*) * table_size;
+#endif
+
     return calloc(table_size, sizeof(struct row_list*));
 }
 
@@ -287,7 +296,11 @@ void table_visit(const struct chessboard* c, visit_table* visited,
 
     unsigned long hash = table_hash(c, column, row);
     struct row_list* prev = hash[visited];
+
+#if DEBUG
     alloc += sizeof(struct row_list);
+#endif
+
     hash[visited] = malloc(sizeof(struct row_list));
     assert(hash[visited] != NULL);
     hash[visited]->row = row;
@@ -316,8 +329,10 @@ void table_destroy(const struct chessboard* c, visit_table* visited) {
         }
     }
 
+#if DEBUG
     printf("alloc = %lu\n", alloc);
     alloc = 0;
+#endif
 
     free(visited);
 }