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 //
 //
 /*
     Copyright (C) 2000- 2013, Hammersmith Imanet Ltd
     Copyright (C) 2016, University College London
     This file is part of STIR.

     SPDX-License-Identifier: Apache-2.0

     See STIR/LICENSE.txt for details
 */
 #ifndef __stir_is_null_ptr_H__
 #define __stir_is_null_ptr_H__

 #include "stir/shared_ptr.h"
 #include <memory>
 #include "stir/unique_ptr.h"
 START_NAMESPACE_STIR
 template <typename T>
 inline bool
 is_null_ptr(T const* const ptr)
 {
 #ifdef BOOST_NO_CXX11_NULLPTR
   return ptr == 0;
 #else
   return ptr == nullptr;
 #endif
 }

 template <typename T>
 inline bool
 is_null_ptr(shared_ptr<T> const& sptr)
 {
   return is_null_ptr(sptr.get());
 }

 template <typename T>
 inline bool
 is_null_ptr(unique_ptr<T> const& aptr)
 {
   return is_null_ptr(aptr.get());
 }

 #ifndef BOOST_NO_CXX11_NULLPTR
 inline bool
 is_null_ptr(const std::nullptr_t)
 {
   return true;
 }
 #endif


 END_NAMESPACE_STIR

 #endif
shared_ptr.h
Import of std::shared_ptr, std::dynamic_pointer_cast and std::static_pointer_cast (or corresponding b...

unique_ptr.h
Import of std::unique_ptr into the stir namespace, together with work-arounds for other compilers...