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Aliasing constructor added

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[SVN r37402]
This commit is contained in:
Peter Dimov
2007-04-09 16:32:45 +00:00
parent 469578e976
commit 54e12d03fd
1 changed files with 7 additions and 1 deletions
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8
include/boost/shared_ptr.hpp
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@ -5,7 +5,7 @@
// shared_ptr.hpp
//
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
// Copyright (c) 2001-2006 Peter Dimov
// Copyright (c) 2001-2007 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
@ -195,6 +195,12 @@ public:
{
}
// aliasing
template< class Y >
shared_ptr( shared_ptr<Y> const & r, T * p ): px( p ), pn( r.pn ) // never throws
{
}
template<class Y>
shared_ptr(shared_ptr<Y> const & r, boost::detail::static_cast_tag): px(static_cast<element_type *>(r.px)), pn(r.pn)
{