mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-23 13:22:02 +03:00
168 lines
4.0 KiB
C++
168 lines
4.0 KiB
C++
|
#ifndef BOOST_SMART_PTR_SCOPED_PTR_HPP_INCLUDED
|
||
|
#define BOOST_SMART_PTR_SCOPED_PTR_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_ptr.htm
|
||
|
//
|
||
|
|
||
|
#include <boost/config.hpp>
|
||
|
#include <boost/assert.hpp>
|
||
|
#include <boost/checked_delete.hpp>
|
||
|
#include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
|
||
|
#include <boost/smart_ptr/detail/sp_disable_deprecated.hpp>
|
||
|
#include <boost/detail/workaround.hpp>
|
||
|
|
||
|
#ifndef BOOST_NO_AUTO_PTR
|
||
|
# include <memory> // for std::auto_ptr
|
||
|
#endif
|
||
|
|
||
|
#if defined( BOOST_SP_DISABLE_DEPRECATED )
|
||
|
#pragma GCC diagnostic push
|
||
|
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
|
||
|
#endif
|
||
|
|
||
|
namespace boost
|
||
|
{
|
||
|
|
||
|
// Debug hooks
|
||
|
|
||
|
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||
|
|
||
|
void sp_scalar_constructor_hook(void * p);
|
||
|
void sp_scalar_destructor_hook(void * p);
|
||
|
|
||
|
#endif
|
||
|
|
||
|
// scoped_ptr mimics a built-in pointer except that it guarantees deletion
|
||
|
// of the object pointed to, either on destruction of the scoped_ptr or via
|
||
|
// an explicit reset(). scoped_ptr is a simple solution for simple needs;
|
||
|
// use shared_ptr or std::auto_ptr if your needs are more complex.
|
||
|
|
||
|
template<class T> class scoped_ptr // noncopyable
|
||
|
{
|
||
|
private:
|
||
|
|
||
|
T * px;
|
||
|
|
||
|
scoped_ptr(scoped_ptr const &);
|
||
|
scoped_ptr & operator=(scoped_ptr const &);
|
||
|
|
||
|
typedef scoped_ptr<T> this_type;
|
||
|
|
||
|
void operator==( scoped_ptr const& ) const;
|
||
|
void operator!=( scoped_ptr const& ) const;
|
||
|
|
||
|
public:
|
||
|
|
||
|
typedef T element_type;
|
||
|
|
||
|
explicit scoped_ptr( T * p = 0 ): px( p ) // never throws
|
||
|
{
|
||
|
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||
|
boost::sp_scalar_constructor_hook( px );
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
#ifndef BOOST_NO_AUTO_PTR
|
||
|
|
||
|
explicit scoped_ptr( std::auto_ptr<T> p ) BOOST_NOEXCEPT : px( p.release() )
|
||
|
{
|
||
|
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||
|
boost::sp_scalar_constructor_hook( px );
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
~scoped_ptr() // never throws
|
||
|
{
|
||
|
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||
|
boost::sp_scalar_destructor_hook( px );
|
||
|
#endif
|
||
|
boost::checked_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*() const // never throws
|
||
|
{
|
||
|
BOOST_ASSERT( px != 0 );
|
||
|
return *px;
|
||
|
}
|
||
|
|
||
|
T * operator->() const // never throws
|
||
|
{
|
||
|
BOOST_ASSERT( px != 0 );
|
||
|
return px;
|
||
|
}
|
||
|
|
||
|
T * get() const BOOST_NOEXCEPT
|
||
|
{
|
||
|
return px;
|
||
|
}
|
||
|
|
||
|
// implicit conversion to "bool"
|
||
|
#include <boost/smart_ptr/detail/operator_bool.hpp>
|
||
|
|
||
|
void swap(scoped_ptr & b) BOOST_NOEXCEPT
|
||
|
{
|
||
|
T * tmp = b.px;
|
||
|
b.px = px;
|
||
|
px = tmp;
|
||
|
}
|
||
|
};
|
||
|
|
||
|
#if !defined( BOOST_NO_CXX11_NULLPTR )
|
||
|
|
||
|
template<class T> inline bool operator==( scoped_ptr<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||
|
{
|
||
|
return p.get() == 0;
|
||
|
}
|
||
|
|
||
|
template<class T> inline bool operator==( boost::detail::sp_nullptr_t, scoped_ptr<T> const & p ) BOOST_NOEXCEPT
|
||
|
{
|
||
|
return p.get() == 0;
|
||
|
}
|
||
|
|
||
|
template<class T> inline bool operator!=( scoped_ptr<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||
|
{
|
||
|
return p.get() != 0;
|
||
|
}
|
||
|
|
||
|
template<class T> inline bool operator!=( boost::detail::sp_nullptr_t, scoped_ptr<T> const & p ) BOOST_NOEXCEPT
|
||
|
{
|
||
|
return p.get() != 0;
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
template<class T> inline void swap(scoped_ptr<T> & a, scoped_ptr<T> & b) BOOST_NOEXCEPT
|
||
|
{
|
||
|
a.swap(b);
|
||
|
}
|
||
|
|
||
|
// get_pointer(p) is a generic way to say p.get()
|
||
|
|
||
|
template<class T> inline T * get_pointer(scoped_ptr<T> const & p) BOOST_NOEXCEPT
|
||
|
{
|
||
|
return p.get();
|
||
|
}
|
||
|
|
||
|
} // namespace boost
|
||
|
|
||
|
#if defined( BOOST_SP_DISABLE_DEPRECATED )
|
||
|
#pragma GCC diagnostic pop
|
||
|
#endif
|
||
|
|
||
|
#endif // #ifndef BOOST_SMART_PTR_SCOPED_PTR_HPP_INCLUDED
|