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35 /*! \libinternal \file
37 * Declares gmx::gmx_unique_ptr and supporting functionality.
39 * \author Roland Schulz <roland@utk.edu>
40 * \author John Eblen <jeblen@acm.org>
42 * \ingroup module_utility
44 #ifndef GMX_UTILITY_UNIQUEPTR_H
45 #define GMX_UTILITY_UNIQUEPTR_H
49 #if GMX_CXX11 // C++11 Compiler
50 #include <memory> // IWYU pragma: export
51 #include <utility> // IWYU pragma: export
52 #else // C++03 Compiler
53 #include <boost/shared_ptr.hpp>
60 /*! \libinternal \class gmx_unique_ptr
62 * Smart pointer for unique ownership.
64 * The \a type member typedef declares the actual smart pointer type.
65 * If std::unique_ptr from C++11 is available, it is used, otherwise maps to
66 * boost::shared_ptr. Because of this, there are some limitations to usage.
67 * gmx::move() should be used to move the pointer.
69 * Avoid using directly as a type, use a typedef instead. Typical usage:
71 typedef gmx_unique_ptr<ExampleClass>::type ExampleClassPointer;
74 * \ingroup module_utility
77 /*! \libinternal \typedef gmx_unique_ptr::type
78 * \brief The smart pointer type.
79 * Work-around for the non-existence of template typedefs in C++03.
81 #if GMX_CXX11 // C++11 Compiler
86 typedef std::unique_ptr<T> type;
88 #else // C++03 Compiler
89 /*! \fn boost::shared_ptr<T> &move(boost::shared_ptr<T> &ptr)
91 * Moves gmx::gmx_unique_ptr type pointers
93 * For C++11 gmx::move is the std::move, for non-C++11 compilers, the
94 * move operation is a no-op.
99 boost::shared_ptr<T> &move(boost::shared_ptr<T> &ptr)
104 struct gmx_unique_ptr
106 typedef boost::shared_ptr<T> type;