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boost/libs/gil/test/extension/toolbox/get_num_bits.cpp
2021-10-05 21:37:46 +02:00

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C++

//
// 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_type.hpp>
#include <boost/gil/extension/toolbox/metafunctions/get_num_bits.hpp>
namespace gil = boost::gil;
void test_get_num_bits()
{
using image_t = gil::bit_aligned_image4_type<4, 4, 4, 4, gil::rgb_layout_t>::type;
using channel_t = gil::channel_type<image_t::view_t::reference>::type;
static_assert(gil::get_num_bits<channel_t>::value == 4, "");
using const_channel_t = gil::channel_type<image_t::const_view_t::reference>::type;
static_assert(gil::get_num_bits<const_channel_t>::value == 4, "");
using bits_t = gil::packed_channel_value<23>;
static_assert(gil::get_num_bits<bits_t>::value == 23, "");
static_assert(gil::get_num_bits<bits_t const>::value == 23, "");
static_assert(gil::get_num_bits<unsigned char >::value == 8, "");
static_assert(gil::get_num_bits<unsigned char const>::value == 8, "");
using gray8_channel_t = gil::channel_type<gil::gray8_image_t::view_t::value_type>::type;
static_assert(gil::get_num_bits<gray8_channel_t>::value == 8, "");
using rgba32_channel_t = gil::channel_type<gil::rgba32_image_t::view_t::value_type>::type;
static_assert(gil::get_num_bits<rgba32_channel_t>::value == 32, "");
}
int main()
{
test_get_num_bits();
}