// In header: <boost/compute/image/image_sampler.hpp>

class image_sampler {
public:
  enum addressing_mode { none = = CL_ADDRESS_NONE, 
                         clamp_to_edge = = CL_ADDRESS_CLAMP_TO_EDGE, 
                         clamp = = CL_ADDRESS_CLAMP, 
                         repeat = = CL_ADDRESS_REPEAT };
  enum filter_mode { nearest = = CL_FILTER_NEAREST, 
                     linear = = CL_FILTER_LINEAR };
  // construct/copy/destruct
  image_sampler();
  image_sampler(const context &, bool, cl_addressing_mode, cl_filter_mode);
  explicit image_sampler(cl_sampler, bool = true);
  image_sampler(const image_sampler &);
  image_sampler(image_sampler &&) noexcept;
  image_sampler & operator=(const image_sampler &);
  image_sampler & operator=(image_sampler &&) noexcept;
  ~image_sampler();
  // public member functions
  cl_sampler & get() const;
  context get_context() const;
  template<typename T> T get_info(cl_sampler_info) const;
  template<int Enum> unspecified get_info() const;
  bool operator==(const image_sampler &) const;
  bool operator!=(const image_sampler &) const;
  operator cl_sampler() const;
};