From e350d445a6a65ff1fa759911a785775b3152952f Mon Sep 17 00:00:00 2001
From: graehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Tue, 20 Jul 2010 21:38:29 +0000
Subject: hash.h

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@342 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 decoder/dict.h       | 22 +++-------------------
 decoder/ff_factory.h |  2 ++
 decoder/hash.h       | 19 +++++++++++++++++++
 3 files changed, 24 insertions(+), 19 deletions(-)
 create mode 100755 decoder/hash.h

diff --git a/decoder/dict.h b/decoder/dict.h
index dd433c3e..348a97e3 100644
--- a/decoder/dict.h
+++ b/decoder/dict.h
@@ -1,37 +1,21 @@
 #ifndef DICT_H_
 #define DICT_H_
 
-#include "config.h"
 
 #include <cassert>
 #include <cstring>
 
-#ifdef HAVE_SPARSEHASH
-# include <google/dense_hash_map>
-#else
-# include <tr1/unordered_map>
-#endif
 #include <string>
 #include <vector>
-#include <boost/functional/hash.hpp>
-
+#include "hash.h"
 #include "wordid.h"
 
 class Dict {
  typedef
-#ifdef HAVE_SPARSEHASH
- google::dense_hash_map
-#else
- std::tr1::unordered_map
-#endif
- <std::string, WordID, boost::hash<std::string> > Map;
-
+ HASH_MAP<std::string, WordID, boost::hash<std::string> > Map;
  public:
   Dict() : b0_("<bad0>") {
-#ifdef HAVE_SPARSEHASH
-    d_.set_empty_key("<bad1>");
-    d_.set_deleted_key("<bad2>");
-#endif
+    HASH_MAP_EMPTY(d_,"<bad1>");
     words_.reserve(1000);
   }
 
diff --git a/decoder/ff_factory.h b/decoder/ff_factory.h
index 6f86f2f9..12e768aa 100644
--- a/decoder/ff_factory.h
+++ b/decoder/ff_factory.h
@@ -1,6 +1,8 @@
 #ifndef _FF_FACTORY_H_
 #define _FF_FACTORY_H_
 
+//TODO: use http://www.boost.org/doc/libs/1_43_0/libs/functional/factory/doc/html/index.html?
+
 #include <iostream>
 #include <string>
 #include <map>
diff --git a/decoder/hash.h b/decoder/hash.h
new file mode 100755
index 00000000..3e4ad1ff
--- /dev/null
+++ b/decoder/hash.h
@@ -0,0 +1,19 @@
+#ifndef CDEC_HASH_H
+#define CDEC_HASH_H
+
+#include "config.h"
+#ifdef HAVE_SPARSEHASH
+# include <google/dense_hash_map>
+# define HASH_MAP google::dense_hash_map
+# define HASH_MAP_RESERVED(h,empty,deleted) do { h.set_empty_key(empty); h.set_deleted_key(deleted); } while(0)
+# define HASH_MAP_EMPTY(h,empty) do { h.set_empty_key(empty); } while(0)
+#else
+# include <tr1/unordered_map>
+# define HASH_MAP std::tr1::unordered_map
+# define HASH_MAP_RESERVED(h,empty,deleted)
+# define HASH_MAP_EMPTY(h,empty)
+#endif
+#include <boost/functional/hash.hpp>
+
+
+#endif
-- 
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