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//
// Copyright 2019 Mateusz Loskot <mateusz at loskot dot net>
//
// 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/channel.hpp>
#include <boost/gil/typedefs.hpp>
#include <boost/gil/detail/is_channel_integral.hpp>
#include <type_traits>
namespace gil = boost::gil;
int main()
{
static_assert(gil::detail::is_channel_integral
<
gil::packed_channel_value<1>
>::value,
"1-bit packed_channel_value should be recognized as integral");
static_assert(gil::detail::is_channel_integral
<
gil::packed_channel_value<8>
>::value,
"8-bit packed_channel_value should be recognized as integral");
static_assert(gil::detail::is_channel_integral
<
gil::packed_channel_reference
<
std::uint8_t, 0, 3, true
>
>::value,
"3-bit packed_channel_reference should be recognized as integral");
static_assert(gil::detail::is_channel_integral
<
gil::packed_dynamic_channel_reference
<
std::uint8_t, 2, true
>
>::value,
"2-bit packed_dynamic_channel_reference should be recognized as integral");
static_assert(gil::detail::is_channel_integral
<
gil::packed_dynamic_channel_reference
<
std::uint16_t, 15, true
>
>::value,
"15-bit packed_dynamic_channel_reference should be recognized as integral");
struct int_minus_value { static std::int8_t apply() { return -64; } };
struct int_plus_value { static std::int8_t apply() { return 64; } };
static_assert(gil::detail::is_channel_integral
<
gil::scoped_channel_value
<
std::uint8_t, int_minus_value, int_plus_value
>
>::value,
"integer-based scoped_channel_value should be recognized as integral");
static_assert(!gil::detail::is_channel_integral<gil::float32_t>::value,
"float-based packed_channel_value should not be recognized as integral");
static_assert(!gil::detail::is_channel_integral<gil::float64_t>::value,
"float-based packed_channel_value should not be recognized as integral");
}
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