Added boost header

test/external/boost/ptr_container/detail/default_deleter.hpp

@@ -0,0 +1,69 @@
+// (C) Copyright Jonathan Turkanis 2004-2005.
+// 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.)
+
+// Contains the definition of move_ptrs::default_deleter, the default
+// Deleter template argument to move_ptr. Uses a technique of Daniel
+// Wallin to capture the type of a pointer at the time the deleter 
+// is constructed, so that move_ptrs can delete objects of incomplete 
+// type by default.
+
+#ifndef BOOST_MOVE_PTR_DEFAULT_DELETER_HPP_INCLUDED
+#define BOOST_MOVE_PTR_DEFAULT_DELETER_HPP_INCLUDED 
+
+#include <boost/checked_delete.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/type_traits/is_array.hpp>
+#include <boost/type_traits/remove_bounds.hpp>
+
+namespace boost { namespace ptr_container_detail { namespace move_ptrs {
+
+namespace ptr_container_detail {
+
+template<typename T>
+struct deleter_base {
+    typedef void (*deleter)(T*);
+    deleter_base(deleter d) { delete_ = d; }
+    void operator() (T* t) const { delete_(t); }
+    static deleter delete_;
+};
+
+template<class T>
+typename deleter_base<T>::deleter 
+deleter_base<T>::delete_;
+
+template<typename T>
+struct scalar_deleter : deleter_base<T> {
+    typedef deleter_base<T> base;
+    scalar_deleter() : base(do_delete) { }
+    static void do_delete(T* t) { checked_delete(t); }
+};
+
+template<typename T>
+struct array_deleter 
+    : deleter_base<typename remove_bounds<T>::type>
+{
+    typedef typename remove_bounds<T>::type element_type;
+    typedef deleter_base<element_type> base;
+    array_deleter() : base(do_delete) { }
+    static void do_delete(element_type* t) { checked_array_delete(t); }
+};
+
+} // End namespace ptr_container_detail.
+
+template<typename T>
+struct default_deleter
+    : mpl::if_<
+          is_array<T>,
+          ptr_container_detail::array_deleter<T>,
+          ptr_container_detail::scalar_deleter<T>
+      >::type
+{ 
+    default_deleter() { }
+    template<typename TT>
+    default_deleter(default_deleter<TT> tt) { }
+};
+
+} } } // End namespaces ptr_container_detail, move_ptrs, boost.
+
+#endif // #ifndef BOOST_MOVE_PTR_DEFAULT_DELETER_HPP_INCLUDED