55ac7da9d8
At the end of test we should read from input vector (not output) in order to check if transform() with as<int>() was performed correctly.
60 lines
1.6 KiB
C++
60 lines
1.6 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://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#define BOOST_TEST_MODULE TestFunctionalAs
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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/algorithm/copy_n.hpp>
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#include <boost/compute/algorithm/transform.hpp>
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#include <boost/compute/container/vector.hpp>
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#include <boost/compute/functional/as.hpp>
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#include "check_macros.hpp"
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#include "context_setup.hpp"
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namespace compute = boost::compute;
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BOOST_AUTO_TEST_CASE(roundtrip_int_float)
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{
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int data[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
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compute::vector<int> input(8, context);
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compute::copy_n(data, 8, input.begin(), queue);
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// convert int -> float
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compute::vector<float> output(8, context);
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compute::transform(
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input.begin(),
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input.end(),
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output.begin(),
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compute::as<float>(),
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queue
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);
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// zero out input
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compute::fill(input.begin(), input.end(), 0, queue);
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// convert float -> int
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compute::transform(
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output.begin(),
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output.end(),
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input.begin(),
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compute::as<int>(),
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queue
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);
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// check values
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CHECK_RANGE_EQUAL(
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int, 8, input, (1, 2, 3, 4, 5, 6, 7, 8)
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);
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}
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BOOST_AUTO_TEST_SUITE_END()
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