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- //---------------------------------------------------------------------------//
- // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
- //
- // 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
- //
- // See http://boostorg.github.com/compute for more information.
- //---------------------------------------------------------------------------//
- #define BOOST_TEST_MODULE TestTransformIterator
- #include <boost/test/unit_test.hpp>
- #include <iterator>
- #include <boost/type_traits.hpp>
- #include <boost/static_assert.hpp>
- #include <boost/compute/types.hpp>
- #include <boost/compute/functional.hpp>
- #include <boost/compute/algorithm/copy.hpp>
- #include <boost/compute/container/vector.hpp>
- #include <boost/compute/iterator/buffer_iterator.hpp>
- #include <boost/compute/iterator/transform_iterator.hpp>
- #include "check_macros.hpp"
- #include "context_setup.hpp"
- BOOST_AUTO_TEST_CASE(value_type)
- {
- using boost::compute::float4_;
- BOOST_STATIC_ASSERT((
- boost::is_same<
- boost::compute::transform_iterator<
- boost::compute::buffer_iterator<float>,
- boost::compute::sqrt<float>
- >::value_type,
- float
- >::value
- ));
- BOOST_STATIC_ASSERT((
- boost::is_same<
- boost::compute::transform_iterator<
- boost::compute::buffer_iterator<float4_>,
- boost::compute::length<float4_>
- >::value_type,
- float
- >::value
- ));
- }
- BOOST_AUTO_TEST_CASE(base_type)
- {
- BOOST_STATIC_ASSERT((
- boost::is_same<
- boost::compute::transform_iterator<
- boost::compute::buffer_iterator<int>, boost::compute::abs<int>
- >::base_type,
- boost::compute::buffer_iterator<int>
- >::value
- ));
- }
- BOOST_AUTO_TEST_CASE(copy)
- {
- int data[] = { 1, -2, 3, -4, 5 };
- boost::compute::vector<int> a(data, data + 5, queue);
- boost::compute::vector<int> b(5, context);
- boost::compute::copy(
- boost::compute::make_transform_iterator(
- a.begin(),
- boost::compute::abs<int>()
- ),
- boost::compute::make_transform_iterator(
- a.end(),
- boost::compute::abs<int>()
- ),
- b.begin(),
- queue
- );
- CHECK_RANGE_EQUAL(int, 5, b, (1, 2, 3, 4, 5));
- }
- BOOST_AUTO_TEST_CASE(copy_abs_doctest)
- {
- int data[] = { -1, -2, -3, -4 };
- boost::compute::vector<int> input(data, data + 4, queue);
- boost::compute::vector<int> output(4, context);
- //! [copy_abs]
- // use abs() from boost.compute
- using boost::compute::abs;
- // copy the absolute value for each element in input to output
- boost::compute::copy(
- boost::compute::make_transform_iterator(input.begin(), abs<int>()),
- boost::compute::make_transform_iterator(input.end(), abs<int>()),
- output.begin(),
- queue
- );
- //! [copy_abs]
- CHECK_RANGE_EQUAL(int, 4, output, (1, 2, 3, 4));
- }
- BOOST_AUTO_TEST_SUITE_END()
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