Forward headers for the unordered containers.

[SVN r48802]

include/boost/unordered/unordered_map_fwd.hpp

@@ -0,0 +1,53 @@
+
+// Copyright (C) 2008 Daniel James.
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_UNORDERED_MAP_FWD_HPP_INCLUDED
+#define BOOST_UNORDERED_MAP_FWD_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <memory>
+#include <functional>
+#include <boost/functional/hash_fwd.hpp>
+
+namespace boost
+{
+    template <class Key,
+        class T,
+        class Hash = hash<Key>,
+        class Pred = std::equal_to<Key>,
+        class Alloc = std::allocator<std::pair<const Key, T> > >
+    class unordered_map;
+    template <class K, class T, class H, class P, class A>
+    bool operator==(unordered_map<K, T, H, P, A> const&,
+        unordered_map<K, T, H, P, A> const&);
+    template <class K, class T, class H, class P, class A>
+    bool operator!=(unordered_map<K, T, H, P, A> const&,
+        unordered_map<K, T, H, P, A> const&);
+    template <class K, class T, class H, class P, class A>
+    void swap(unordered_map<K, T, H, P, A>&,
+            unordered_map<K, T, H, P, A>&);
+
+    template <class Key,
+        class T,
+        class Hash = hash<Key>,
+        class Pred = std::equal_to<Key>,
+        class Alloc = std::allocator<std::pair<const Key, T> > >
+    class unordered_multimap;
+    template <class K, class T, class H, class P, class A>
+    bool operator==(unordered_multimap<K, T, H, P, A> const&,
+        unordered_multimap<K, T, H, P, A> const&);
+    template <class K, class T, class H, class P, class A>
+    bool operator!=(unordered_multimap<K, T, H, P, A> const&,
+        unordered_multimap<K, T, H, P, A> const&);
+    template <class K, class T, class H, class P, class A>
+    void swap(unordered_multimap<K, T, H, P, A>&,
+            unordered_multimap<K, T, H, P, A>&);
+}
+
+#endif

include/boost/unordered/unordered_set_fwd.hpp

@@ -0,0 +1,51 @@
+
+// Copyright (C) 2008 Daniel James.
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_UNORDERED_SET_FWD_HPP_INCLUDED
+#define BOOST_UNORDERED_SET_FWD_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <memory>
+#include <functional>
+#include <boost/functional/hash_fwd.hpp>
+
+namespace boost
+{
+    template <class Value,
+        class Hash = hash<Value>,
+        class Pred = std::equal_to<Value>,
+        class Alloc = std::allocator<Value> >
+    class unordered_set;
+    template <class T, class H, class P, class A>
+    bool operator==(unordered_set<T, H, P, A> const&,
+        unordered_set<T, H, P, A> const&);
+    template <class T, class H, class P, class A>
+    bool operator!=(unordered_set<T, H, P, A> const&,
+        unordered_set<T, H, P, A> const&);
+    template <class T, class H, class P, class A>
+    void swap(unordered_set<T, H, P, A> &m1,
+            unordered_set<T, H, P, A> &m2);
+
+    template <class Value,
+        class Hash = hash<Value>,
+        class Pred = std::equal_to<Value>,
+        class Alloc = std::allocator<Value> >
+    class unordered_multiset;
+    template <class T, class H, class P, class A>
+    bool operator==(unordered_multiset<T, H, P, A> const&,
+        unordered_multiset<T, H, P, A> const&);
+    template <class T, class H, class P, class A>
+    bool operator!=(unordered_multiset<T, H, P, A> const&,
+        unordered_multiset<T, H, P, A> const&);
+    template <class T, class H, class P, class A>
+    void swap(unordered_multiset<T, H, P, A> &m1,
+            unordered_multiset<T, H, P, A> &m2);
+}
+
+#endif

include/boost/unordered_map.hpp

@@ -13,11 +13,7 @@
 # pragma once
 #endif
 
-#include <boost/config.hpp>
-
-#include <functional>
-#include <memory>
-
+#include <boost/unordered/unordered_map_fwd.hpp>
 #include <boost/functional/hash.hpp>
 #include <boost/unordered/detail/hash_table.hpp>
 
@@ -27,38 +23,6 @@
 
 namespace boost
 {
-    template <class Key,
-        class T,
-        class Hash = hash<Key>,
-        class Pred = std::equal_to<Key>,
-        class Alloc = std::allocator<std::pair<const Key, T> > >
-    class unordered_map;
-    template <class K, class T, class H, class P, class A>
-    bool operator==(unordered_map<K, T, H, P, A> const&,
-        unordered_map<K, T, H, P, A> const&);
-    template <class K, class T, class H, class P, class A>
-    bool operator!=(unordered_map<K, T, H, P, A> const&,
-        unordered_map<K, T, H, P, A> const&);
-    template <class K, class T, class H, class P, class A>
-    void swap(unordered_map<K, T, H, P, A>&,
-            unordered_map<K, T, H, P, A>&);
-
-    template <class Key,
-        class T,
-        class Hash = hash<Key>,
-        class Pred = std::equal_to<Key>,
-        class Alloc = std::allocator<std::pair<const Key, T> > >
-    class unordered_multimap;
-    template <class K, class T, class H, class P, class A>
-    bool operator==(unordered_multimap<K, T, H, P, A> const&,
-        unordered_multimap<K, T, H, P, A> const&);
-    template <class K, class T, class H, class P, class A>
-    bool operator!=(unordered_multimap<K, T, H, P, A> const&,
-        unordered_multimap<K, T, H, P, A> const&);
-    template <class K, class T, class H, class P, class A>
-    void swap(unordered_multimap<K, T, H, P, A>&,
-            unordered_multimap<K, T, H, P, A>&);
-
     template <class Key, class T, class Hash, class Pred, class Alloc>
     class unordered_map
     {

include/boost/unordered_set.hpp

@@ -13,11 +13,7 @@
 # pragma once
 #endif
 
-#include <boost/config.hpp>
-
-#include <functional>
-#include <memory>
-
+#include <boost/unordered/unordered_set_fwd.hpp>
 #include <boost/functional/hash.hpp>
 #include <boost/unordered/detail/hash_table.hpp>
 
@@ -27,36 +23,6 @@
 
 namespace boost
 {
-    template <class Value,
-        class Hash = hash<Value>,
-        class Pred = std::equal_to<Value>,
-        class Alloc = std::allocator<Value> >
-    class unordered_set;
-    template <class T, class H, class P, class A>
-    bool operator==(unordered_set<T, H, P, A> const&,
-        unordered_set<T, H, P, A> const&);
-    template <class T, class H, class P, class A>
-    bool operator!=(unordered_set<T, H, P, A> const&,
-        unordered_set<T, H, P, A> const&);
-    template <class T, class H, class P, class A>
-    void swap(unordered_set<T, H, P, A> &m1,
-            unordered_set<T, H, P, A> &m2);
-
-    template <class Value,
-        class Hash = hash<Value>,
-        class Pred = std::equal_to<Value>,
-        class Alloc = std::allocator<Value> >
-    class unordered_multiset;
-    template <class T, class H, class P, class A>
-    bool operator==(unordered_multiset<T, H, P, A> const&,
-        unordered_multiset<T, H, P, A> const&);
-    template <class T, class H, class P, class A>
-    bool operator!=(unordered_multiset<T, H, P, A> const&,
-        unordered_multiset<T, H, P, A> const&);
-    template <class T, class H, class P, class A>
-    void swap(unordered_multiset<T, H, P, A> &m1,
-            unordered_multiset<T, H, P, A> &m2);
-
     template <class Value, class Hash, class Pred, class Alloc>
     class unordered_set
     {