libs/gil/test/core/image_view/derived_view_type.cpp

   1 //
   2 // Copyright 2019 Mateusz Loskot <mateusz at loskot dot net>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 #include <boost/gil.hpp>
   9
  10 #include <type_traits>
  11
  12 namespace gil = boost::gil;
  13
  14 int main()
  15 {
  16
  17     static_assert(std::is_same
  18         <
  19             gil::derived_view_type<gil::cmyk8c_planar_step_view_t>::type,
  20             gil::cmyk8c_planar_step_view_t
  21         >::value, "derived_view_type should be cmyk8c_planar_step_view_t");
  22
  23     static_assert(std::is_same
  24         <
  25             gil::derived_view_type
  26             <
  27                 gil::cmyk8c_planar_step_view_t, std::uint16_t, gil::rgb_layout_t
  28             >::type,
  29             gil::rgb16c_planar_step_view_t
  30         >::value, "derived_view_type should be rgb16c_planar_step_view_t");
  31
  32     static_assert(std::is_same
  33         <
  34             gil::derived_view_type
  35             <
  36                 gil::cmyk8c_planar_step_view_t,
  37                 boost::use_default,
  38                 gil::rgb_layout_t,
  39                 std::false_type,
  40                 boost::use_default,
  41                 std::false_type
  42             >::type,
  43             gil::rgb8c_step_view_t
  44         >::value, "derived_view_type should be rgb8c_step_view_t");
  45 }