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62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
//---------------------------------------------------------------------------//
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// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://kylelutz.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#define BOOST_TEST_MODULE TestAdjacentDifference
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#include <boost/test/unit_test.hpp>
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#include <boost/compute/system.hpp>
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#include <boost/compute/command_queue.hpp>
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#include <boost/compute/algorithm/iota.hpp>
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#include <boost/compute/algorithm/copy.hpp>
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#include <boost/compute/algorithm/adjacent_difference.hpp>
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#include <boost/compute/container/vector.hpp>
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namespace bc = boost::compute;
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BOOST_AUTO_TEST_CASE(adjacent_difference_int)
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{
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bc::device device = bc::system::default_device();
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bc::context context(device);
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bc::vector<int> a(5, context);
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bc::iota(a.begin(), a.end(), 0);
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BOOST_CHECK_EQUAL(a[0], 0);
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BOOST_CHECK_EQUAL(a[1], 1);
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BOOST_CHECK_EQUAL(a[2], 2);
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BOOST_CHECK_EQUAL(a[3], 3);
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BOOST_CHECK_EQUAL(a[4], 4);
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bc::vector<int> b(5, context);
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bc::vector<int>::iterator iter =
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bc::adjacent_difference(a.begin(), a.end(), b.begin());
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BOOST_CHECK(iter == b.end());
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BOOST_CHECK_EQUAL(b[0], 0);
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BOOST_CHECK_EQUAL(b[1], 1);
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BOOST_CHECK_EQUAL(b[2], 1);
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BOOST_CHECK_EQUAL(b[3], 1);
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BOOST_CHECK_EQUAL(b[4], 1);
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int data[] = { 1, 9, 36, 48, 81 };
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bc::copy(data, data + 5, a.begin());
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BOOST_CHECK_EQUAL(a[0], 1);
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BOOST_CHECK_EQUAL(a[1], 9);
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BOOST_CHECK_EQUAL(a[2], 36);
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BOOST_CHECK_EQUAL(a[3], 48);
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BOOST_CHECK_EQUAL(a[4], 81);
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iter = bc::adjacent_difference(a.begin(), a.end(), b.begin());
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BOOST_CHECK(iter == b.end());
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BOOST_CHECK_EQUAL(b[0], 1);
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BOOST_CHECK_EQUAL(b[1], 8);
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BOOST_CHECK_EQUAL(b[2], 27);
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BOOST_CHECK_EQUAL(b[3], 12);
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BOOST_CHECK_EQUAL(b[4], 33);
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}
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