core/include/boost/get_pointer.hpp
David Deakins 74983abb53 Have config/select_stdlib_config.hpp and config/stdlib/stlport.hpp use <cstddef> instead of <utility> to determine which standard library is in use. For std lib implementations that rely on Boost components like TypeTraits, Bind, Function, or SmartPtr, this helps to avoid circular header dependency issues, since <cstddef> is much less likely to pull in Boost libraries than <utility>.
In get_pointer.hpp, switched to using <boost/config/no_tr1/memory.hpp> instead of using <memory> directly.  As above, this helps avoid circular header dependency issues in Boost-supplemented std libs (specifically it avoids issues when <memory> pulls in pieces of Boost.SmartPtr).

These two changes were made in response to testing done with STLport 5.2.1 using the _STLP_USE_BOOST_SUPPORT option.

[SVN r52221]
2014-06-03 20:17:52 +03:00

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// Copyright Peter Dimov and David Abrahams 2002.
// 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)
#ifndef GET_POINTER_DWA20021219_HPP
# define GET_POINTER_DWA20021219_HPP
// In order to avoid circular dependencies with Boost.TR1
// we make sure that our include of <memory> doesn't try to
// pull in the TR1 headers: that's why we use this header
// rather than including <memory> directly:
# include <boost/config/no_tr1/memory.hpp> // std::auto_ptr
namespace boost {
// get_pointer(p) extracts a ->* capable pointer from p
template<class T> T * get_pointer(T * p)
{
return p;
}
// get_pointer(shared_ptr<T> const & p) has been moved to shared_ptr.hpp
template<class T> T * get_pointer(std::auto_ptr<T> const& p)
{
return p.get();
}
} // namespace boost
#endif // GET_POINTER_DWA20021219_HPP