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62 lines
2.1 KiB
C++
62 lines
2.1 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 TestTransformReduce
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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/functional.hpp>
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#include <boost/compute/algorithm/transform_reduce.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(sum_abs_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::command_queue queue(context, device);
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int data[] = { 1, -2, -3, -4, 5 };
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bc::vector<int> vector(data, data + 5, context);
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int sum =
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bc::transform_reduce(vector.begin(),
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vector.end(),
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bc::abs<int>(),
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0,
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bc::plus<int>(),
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queue);
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BOOST_CHECK_EQUAL(sum, 15);
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}
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BOOST_AUTO_TEST_CASE(multiply_vector_length)
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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::command_queue queue(context, device);
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float data[] = { 2.0f, 0.0f, 0.0f, 0.0f,
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0.0f, 3.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 4.0f, 0.0f };
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bc::vector<bc::float4_> vector(reinterpret_cast<bc::float4_ *>(data),
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reinterpret_cast<bc::float4_ *>(data) + 3,
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context);
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float product =
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bc::transform_reduce(vector.begin(),
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vector.end(),
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bc::length<bc::float4_>(),
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1.0f,
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bc::multiplies<float>(),
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queue);
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BOOST_CHECK_CLOSE(product, 24.0f, 1e-4);
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}
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