From 46f00ea9935a3be7b8d1f14a2d4a0db0a3705b58 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@pdimov.com>
Date: Tue, 15 Dec 2015 19:13:20 +0200
Subject: [PATCH] Fix hash support for shared_ptr<T[]>, <T[N]>

---
 include/boost/smart_ptr/shared_ptr.hpp |  2 +-
 test/Jamfile.v2                        |  3 +++
 test/sp_hash_test2.cpp                 | 34 ++++++++++++++++++++++++++
 test/sp_hash_test3.cpp                 | 34 ++++++++++++++++++++++++++
 4 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 test/sp_hash_test2.cpp
 create mode 100644 test/sp_hash_test3.cpp

diff --git a/include/boost/smart_ptr/shared_ptr.hpp b/include/boost/smart_ptr/shared_ptr.hpp
index 47bc33d..bcefda8 100644
--- a/include/boost/smart_ptr/shared_ptr.hpp
+++ b/include/boost/smart_ptr/shared_ptr.hpp
@@ -1065,7 +1065,7 @@ template< class T > struct hash;
 
 template< class T > std::size_t hash_value( boost::shared_ptr<T> const & p ) BOOST_NOEXCEPT
 {
-    return boost::hash< T* >()( p.get() );
+    return boost::hash< typename boost::shared_ptr<T>::element_type* >()( p.get() );
 }
 
 } // namespace boost
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 62fab50..963eebc 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -181,5 +181,8 @@ import testing ;
           [ run weak_from_this_test2.cpp ]
 
           [ run sp_bml_unique_ptr_test.cpp ]
+
+          [ run sp_hash_test2.cpp ]
+          [ run sp_hash_test3.cpp ]
         ;
 }
diff --git a/test/sp_hash_test2.cpp b/test/sp_hash_test2.cpp
new file mode 100644
index 0000000..c1cbf70
--- /dev/null
+++ b/test/sp_hash_test2.cpp
@@ -0,0 +1,34 @@
+//
+// sp_hash_test2.cpp
+//
+// Copyright 2011, 2015 Peter Dimov
+//
+// 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
+//
+
+#include <boost/shared_ptr.hpp>
+#include <boost/functional/hash.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+int main()
+{
+    boost::hash< boost::shared_ptr<int[]> > hasher;
+
+    boost::shared_ptr< int[] > p1, p2( p1 ), p3( new int[1] ), p4( p3 ), p5( new int[1] );
+
+    BOOST_TEST_EQ( p1, p2 );
+    BOOST_TEST_EQ( hasher( p1 ), hasher( p2 ) );
+
+    BOOST_TEST_NE( p1, p3 );
+    BOOST_TEST_NE( hasher( p1 ), hasher( p3 ) );
+
+    BOOST_TEST_EQ( p3, p4 );
+    BOOST_TEST_EQ( hasher( p3 ), hasher( p4 ) );
+
+    BOOST_TEST_NE( p3, p5 );
+    BOOST_TEST_NE( hasher( p3 ), hasher( p5 ) );
+
+    return boost::report_errors();
+}
diff --git a/test/sp_hash_test3.cpp b/test/sp_hash_test3.cpp
new file mode 100644
index 0000000..4d4acad
--- /dev/null
+++ b/test/sp_hash_test3.cpp
@@ -0,0 +1,34 @@
+//
+// sp_hash_test3.cpp
+//
+// Copyright 2011, 2015 Peter Dimov
+//
+// 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
+//
+
+#include <boost/shared_ptr.hpp>
+#include <boost/functional/hash.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+int main()
+{
+    boost::hash< boost::shared_ptr<int[1]> > hasher;
+
+    boost::shared_ptr< int[1] > p1, p2( p1 ), p3( new int[1] ), p4( p3 ), p5( new int[1] );
+
+    BOOST_TEST_EQ( p1, p2 );
+    BOOST_TEST_EQ( hasher( p1 ), hasher( p2 ) );
+
+    BOOST_TEST_NE( p1, p3 );
+    BOOST_TEST_NE( hasher( p1 ), hasher( p3 ) );
+
+    BOOST_TEST_EQ( p3, p4 );
+    BOOST_TEST_EQ( hasher( p3 ), hasher( p4 ) );
+
+    BOOST_TEST_NE( p3, p5 );
+    BOOST_TEST_NE( hasher( p3 ), hasher( p5 ) );
+
+    return boost::report_errors();
+}