boost/libs/gil/test/point/concepts.cpp
2022-12-15 23:45:23 +08:00

48 lines
1.4 KiB
C++

//
// Copyright 2018 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
//
#ifndef BOOST_GIL_USE_CONCEPT_CHECK
#error Compile with BOOST_GIL_USE_CONCEPT_CHECK defined
#endif
#include <boost/gil/concepts.hpp>
#include <boost/gil/point.hpp>
#include <type_traits>
namespace gil = boost::gil;
template <typename Point>
void test_members()
{
static_assert(Point::num_dimensions == 2U, "point is not 2D");
using value_t = typename Point::value_type;
using coord_t = typename Point::template axis<0>::coord_t;
static_assert(std::is_same<value_t, coord_t>::value,
"point and axis type mismatch");
}
int main()
{
boost::function_requires<gil::PointNDConcept<gil::point<int>>>();
boost::function_requires<gil::PointNDConcept<gil::point_t>>();
boost::function_requires<gil::Point2DConcept<gil::point<int>>>();
boost::function_requires<gil::Point2DConcept<gil::point_t>>();
test_members<gil::point<int>>();
test_members<gil::point_t>();
// NOTE: point2 is deprecated, available for backward compatibility
boost::function_requires<gil::PointNDConcept<gil::point2<int>>>();
boost::function_requires<gil::Point2DConcept<gil::point2<int>>>();
test_members<gil::point2<int>>();
return 0;
}