/usr/include/boost/signals2/deconstruct_ptr.hpp is in libboost1.46-dev 1.46.1-7ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | // DEPRECATED in favor of adl_postconstruct and adl_predestruct with
// deconstruct<T>().
// A factory function for creating a shared_ptr that enhances the plain
// shared_ptr constructors by adding support for postconstructors
// and predestructors through the boost::signals2::postconstructible and
// boost::signals2::predestructible base classes.
//
// Copyright Frank Mori Hess 2007-2008.
//
// Use, modification and
// distribution is subject to 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_SIGNALS2_DECONSTRUCT_PTR_HPP
#define BOOST_SIGNALS2_DECONSTRUCT_PTR_HPP
#include <boost/assert.hpp>
#include <boost/checked_delete.hpp>
#include <boost/signals2/postconstructible.hpp>
#include <boost/signals2/predestructible.hpp>
#include <boost/shared_ptr.hpp>
namespace boost
{
namespace signals2
{
namespace detail
{
extern inline void do_postconstruct(const postconstructible *ptr)
{
postconstructible *nonconst_ptr = const_cast<postconstructible*>(ptr);
nonconst_ptr->postconstruct();
}
extern inline void do_postconstruct(...)
{
}
extern inline void do_predestruct(...)
{
}
extern inline void do_predestruct(const predestructible *ptr)
{
try
{
predestructible *nonconst_ptr = const_cast<predestructible*>(ptr);
nonconst_ptr->predestruct();
}
catch(...)
{
BOOST_ASSERT(false);
}
}
}
template<typename T> class predestructing_deleter
{
public:
void operator()(const T *ptr) const
{
detail::do_predestruct(ptr);
checked_delete(ptr);
}
};
template<typename T>
shared_ptr<T> deconstruct_ptr(T *ptr)
{
if(ptr == 0) return shared_ptr<T>(ptr);
shared_ptr<T> shared(ptr, boost::signals2::predestructing_deleter<T>());
detail::do_postconstruct(ptr);
return shared;
}
template<typename T, typename D>
shared_ptr<T> deconstruct_ptr(T *ptr, D deleter)
{
shared_ptr<T> shared(ptr, deleter);
if(ptr == 0) return shared;
detail::do_postconstruct(ptr);
return shared;
}
}
}
#endif // BOOST_SIGNALS2_DECONSTRUCT_PTR_HPP
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