8 #ifndef BOOST_GIL_CONCEPTS_PIXEL_DEREFERENCE_HPP     9 #define BOOST_GIL_CONCEPTS_PIXEL_DEREFERENCE_HPP    11 #include <boost/gil/concepts/basic.hpp>    12 #include <boost/gil/concepts/concept_check.hpp>    13 #include <boost/gil/concepts/fwd.hpp>    14 #include <boost/gil/concepts/pixel.hpp>    15 #include <boost/gil/concepts/detail/type_traits.hpp>    17 #include <boost/concept_check.hpp>    20 #include <type_traits>    22 #if defined(BOOST_CLANG)    23 #pragma clang diagnostic push    24 #pragma clang diagnostic ignored "-Wunused-local-typedefs"    27 #if defined(BOOST_GCC) && (BOOST_GCC >= 40900)    28 #pragma GCC diagnostic push    29 #pragma GCC diagnostic ignored "-Wunused-local-typedefs"    32 namespace boost { 
namespace gil {
    58             boost::UnaryFunctionConcept
    61                 typename detail::remove_const_and_reference<typename D::result_type>::type,
    62                 typename D::argument_type
    65         gil_function_requires<boost::DefaultConstructibleConcept<D>>();
    66         gil_function_requires<boost::CopyConstructibleConcept<D>>();
    67         gil_function_requires<boost::AssignableConcept<D>>();
    71                 typename detail::remove_const_and_reference<typename D::result_type>::type
    74         using const_t = 
typename D::const_t;
    75         gil_function_requires<PixelDereferenceAdaptorConcept<const_t>>();
    77         using value_type = 
typename D::value_type;
    78         gil_function_requires<PixelValueConcept<value_type>>();
    81         using reference = 
typename D::reference; 
    82         using const_reference = 
typename D::const_reference; 
    84         bool const is_mutable = D::is_mutable;
    85         ignore_unused_variable_warning(is_mutable);
    91 struct PixelDereferenceAdaptorArchetype
    93     using argument_type = P;
    94     using result_type = P;
    95     using const_t = PixelDereferenceAdaptorArchetype;
    96     using value_type = 
typename std::remove_reference<P>::type;
    97     using reference = 
typename std::add_lvalue_reference<P>::type;
    98     using const_reference = reference;
   100     static const bool is_mutable = 
false;
   101     P operator()(P)
 const { 
throw; }
   106 #if defined(BOOST_CLANG)   107 #pragma clang diagnostic pop   110 #if defined(BOOST_GCC) && (BOOST_GCC >= 40900)   111 #pragma GCC diagnostic pop Represents a unary function object that can be invoked upon dereferencing a pixel iterator.
Definition: pixel_dereference.hpp:52
Pixel concept - A color base whose elements are channels.
Definition: concepts/pixel.hpp:62