1 //---------------------------------------------------------------------------//
2 // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
3 //
4 // Distributed under the Boost Software License, Version 1.0
5 // See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt
7 //
8 // See http://boostorg.github.com/compute for more information.
9 //---------------------------------------------------------------------------//
10
11 #define BOOST_TEST_MODULE TestFunctionalAs
12 #include <boost/test/unit_test.hpp>
13
14 #include <boost/compute/system.hpp>
15 #include <boost/compute/algorithm/copy_n.hpp>
16 #include <boost/compute/algorithm/transform.hpp>
17 #include <boost/compute/container/vector.hpp>
18 #include <boost/compute/functional/as.hpp>
19
20 #include "check_macros.hpp"
21 #include "context_setup.hpp"
22
23 namespace compute = boost::compute;
24
BOOST_AUTO_TEST_CASE(roundtrip_int_float)25 BOOST_AUTO_TEST_CASE(roundtrip_int_float)
26 {
27 int data[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
28 compute::vector<int> input(8, context);
29 compute::copy_n(data, 8, input.begin(), queue);
30
31 // convert int -> float
32 compute::vector<float> output(8, context);
33 compute::transform(
34 input.begin(),
35 input.end(),
36 output.begin(),
37 compute::as<float>(),
38 queue
39 );
40
41 // zero out input
42 compute::fill(input.begin(), input.end(), 0, queue);
43
44 // convert float -> int
45 compute::transform(
46 output.begin(),
47 output.end(),
48 input.begin(),
49 compute::as<int>(),
50 queue
51 );
52
53 // check values
54 CHECK_RANGE_EQUAL(
55 int, 8, input, (1, 2, 3, 4, 5, 6, 7, 8)
56 );
57 }
58
59 BOOST_AUTO_TEST_SUITE_END()
60