smart_ptr/example/shared_ptr_example2.hpp
John Maddock 366d2666d4 Licence update
[SVN r24031]
2004-07-25 12:01:00 +00:00

32 lines
1.1 KiB
C++

// Boost shared_ptr_example2 header file -----------------------------------//
// Copyright Beman Dawes 2001. 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)
// See http://www.boost.org/libs/smart_ptr for documentation.
#include <boost/shared_ptr.hpp>
// This example demonstrates the handle/body idiom (also called pimpl and
// several other names). It separates the interface (in this header file)
// from the implementation (in shared_ptr_example2.cpp).
// Note that even though example::implementation is an incomplete type in
// some translation units using this header, shared_ptr< implementation >
// is still valid because the type is complete where it counts - in the
// shared_ptr_example2.cpp translation unit where functions requiring a
// complete type are actually instantiated.
class example
{
public:
example();
void do_something();
private:
class implementation;
boost::shared_ptr< implementation > _imp; // hide implementation details
};