src/gromacs/utility/unique_cptr.h

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  35 /*! \libinternal \file
  36  * \brief
  37  * Declares gmx::unique_cptr and gmx::sfree_guard.
  38  *
  39  * \author Teemu Murtola <teemu.murtola@gmail.com>
  40  * \inlibraryapi
  41  * \ingroup module_utility
  42  */
  43 #ifndef GMX_UTILITY_UNIQUE_PTR_SFREE_H
  44 #define GMX_UTILITY_UNIQUE_PTR_SFREE_H
  45
  46 #include <memory>
  47
  48 #include "gromacs/utility/smalloc.h"
  49
  50 namespace gmx
  51 {
  52
  53 //! sfree wrapper to be used as unique_cptr deleter
  54 template <class T>
  55 inline void sfree_wrapper(T *p)
  56 {
  57     sfree(p);
  58 }
  59
  60 //! \internal \brief wrap function into functor to be used as deleter
  61 template<class T, void D(T *)>
  62 struct functor_wrapper {
  63     //! call wrapped function
  64     void operator()(T* t) { D(t); }
  65 };
  66
  67 //! unique_ptr which takes function pointer as template argument
  68 template<typename T, void D(T *) = sfree_wrapper>
  69 using unique_cptr                = std::unique_ptr<T, functor_wrapper<T, D> >;
  70
  71 //! Simple guard which calls sfree. See unique_cptr for details.
  72 typedef unique_cptr<void> sfree_guard;
  73
  74 }      // namespace gmx
  75
  76 #endif