From b51965dddbed68f23c5e8c169c23c794313ce5f6 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 28 Jun 2011 17:17:23 +0200
Subject: Add boost subset as an implementation detail

---
 cutl/details/boost/smart_ptr/scoped_array.hpp | 107 ++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 cutl/details/boost/smart_ptr/scoped_array.hpp

(limited to 'cutl/details/boost/smart_ptr/scoped_array.hpp')

diff --git a/cutl/details/boost/smart_ptr/scoped_array.hpp b/cutl/details/boost/smart_ptr/scoped_array.hpp
new file mode 100644
index 0000000..0883b43
--- /dev/null
+++ b/cutl/details/boost/smart_ptr/scoped_array.hpp
@@ -0,0 +1,107 @@
+#ifndef BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
+#define BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
+
+//  (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
+//  Copyright (c) 2001, 2002 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)
+//
+//  http://www.boost.org/libs/smart_ptr/scoped_array.htm
+//
+
+#include <cutl/details/boost/assert.hpp>
+#include <cutl/details/boost/checked_delete.hpp>
+#include <cutl/details/boost/config.hpp>   // in case ptrdiff_t not in std
+
+#include <cutl/details/boost/detail/workaround.hpp>
+
+#include <cstddef>            // for std::ptrdiff_t
+
+namespace cutl_details_boost
+{
+
+// Debug hooks
+
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+
+void sp_array_constructor_hook(void * p);
+void sp_array_destructor_hook(void * p);
+
+#endif
+
+//  scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
+//  is guaranteed, either on destruction of the scoped_array or via an explicit
+//  reset(). Use shared_array or std::vector if your needs are more complex.
+
+template<class T> class scoped_array // noncopyable
+{
+private:
+
+    T * px;
+
+    scoped_array(scoped_array const &);
+    scoped_array & operator=(scoped_array const &);
+
+    typedef scoped_array<T> this_type;
+
+    void operator==( scoped_array const& ) const;
+    void operator!=( scoped_array const& ) const;
+
+public:
+
+    typedef T element_type;
+
+    explicit scoped_array( T * p = 0 ) : px( p ) // never throws
+    {
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+        cutl_details_boost::sp_array_constructor_hook( px );
+#endif
+    }
+
+    ~scoped_array() // never throws
+    {
+#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
+        cutl_details_boost::sp_array_destructor_hook( px );
+#endif
+        cutl_details_boost::checked_array_delete( px );
+    }
+
+    void reset(T * p = 0) // never throws
+    {
+        BOOST_ASSERT( p == 0 || p != px ); // catch self-reset errors
+        this_type(p).swap(*this);
+    }
+
+    T & operator[](std::ptrdiff_t i) const // never throws
+    {
+        BOOST_ASSERT( px != 0 );
+        BOOST_ASSERT( i >= 0 );
+        return px[i];
+    }
+
+    T * get() const // never throws
+    {
+        return px;
+    }
+
+// implicit conversion to "bool"
+#include <cutl/details/boost/smart_ptr/detail/operator_bool.hpp>
+
+    void swap(scoped_array & b) // never throws
+    {
+        T * tmp = b.px;
+        b.px = px;
+        px = tmp;
+    }
+};
+
+template<class T> inline void swap(scoped_array<T> & a, scoped_array<T> & b) // never throws
+{
+    a.swap(b);
+}
+
+} // namespace cutl_details_boost
+
+#endif  // #ifndef BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
-- 
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