SmartPointer.hh

/*===========================================================================*\
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#ifndef ACG_UTILS_SMARTPOINTER_HH
#define ACG_UTILS_SMARTPOINTER_HH

/*************************************************
 * Warning! This header file is duplicated in    *
 * OpenVolumeMesh with the same header guard,    *
 * as src/OpenVolumeMesh/System/MemoryInclude.hh.*
 * If you change this file, you should change    *
 * that file as well.                            *
 *************************************************/

#include <memory>

// Default for C++ 11 and higher
#if ((defined(_MSC_VER) && (_MSC_VER >= 1900)) || __cplusplus > 199711L || defined(__GXX_EXPERIMENTAL_CXX0X__))

  // legacy code may depend on this define:
  #define ACG_UNIQUE_POINTER_SUPPORTED 1

  namespace ptr {
      using std::shared_ptr;
      using std::make_shared;
      using std::unique_ptr;

  #if __cplusplus >= 201402L
    using std::make_unique;
  #else
    template<typename T, typename... Args>
    std::unique_ptr<T>
    make_unique(Args&&... args) {
        return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
    }
  #endif // C++14

  } // namespace ptr


#else // deprecated things

    #if ( (__cplusplus >= 201103L)  || (__STDC_VERSION__ >= 201112L) )
       // C++11:
       #include <memory>
       namespace ptr = std;
       #define ACG_UNIQUE_POINTER_SUPPORTED 1
    #elif defined(__GXX_EXPERIMENTAL_CXX0X__)
       // C++11 via -std=c++0x on gcc:
       #include <memory>
       namespace ptr = std;
       #define ACG_UNIQUE_POINTER_SUPPORTED 1
    #else
       // C++98 and TR1:
       #if (_MSC_VER >= 1600)
         // VStudio 2010 supports some C++11 features
         #include <memory>
         namespace ptr = std;
         #define ACG_UNIQUE_POINTER_SUPPORTED 1
       #elif (_MSC_VER >= 1500)
         // hope for TR1 equivalents
        #if(_HAS_TR1)
         #include <memory>
         namespace ptr = std::tr1;
         #define ACG_UNIQUE_POINTER_SUPPORTED 0
        #else
         #pragma warning "TR1 not available! Please install Visual Studio Service Pack 1!"
        #endif
       #else
         // hope for TR1 equivalents
         // check for clang5 but switch to tr1 if clang uses libstdc++
         #if defined(__clang_major__) && (__clang_major__ >= 5) && !defined(__GLIBCXX__ )
          // Mavericks special treatment
          #include <memory>
          namespace ptr = std;
        #else
          #include <tr1/memory>
          namespace ptr = std::tr1;
        #endif
        #define ACG_UNIQUE_POINTER_SUPPORTED 0
       #endif
    #endif
#endif




#endif // ACG_UTILS_SMARTPOINTER_HH