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//
// Copyright 2013 Christian Henning
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
#include <boost/gil.hpp>
#include <boost/gil/extension/toolbox/metafunctions/channel_view.hpp>
#include <boost/core/lightweight_test.hpp>
#include <type_traits>
namespace gil = boost::gil;
void test_channel_view()
{
using kth_channel_view_t
= gil::kth_channel_view_type<0, gil::rgb8_view_t::const_t>::type;
using channel_view_t
= gil::channel_view_type<gil::red_t, gil::rgb8_view_t::const_t>::type;
static_assert(std::is_same
<
kth_channel_view_t,
channel_view_t
>::value,
"");
gil::rgb8_image_t img(100, 100);
kth_channel_view_t const kth0 = gil::kth_channel_view<0>(gil::const_view(img));
BOOST_TEST_EQ(kth0.num_channels(), 1u);
channel_view_t const red = gil::channel_view<gil::red_t>(gil::const_view(img));
BOOST_TEST_EQ(red.num_channels(), 1u);
}
int main()
{
test_channel_view();
return boost::report_errors();
}
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