1 | // This file is part of Eigen, a lightweight C++ template library
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2 | // for linear algebra.
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3 | //
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4 | // Copyright (C) 2013 Hauke Heibel <hauke.heibel@gmail.com>
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5 | //
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6 | // This Source Code Form is subject to the terms of the Mozilla
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7 | // Public License v. 2.0. If a copy of the MPL was not distributed
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8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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9 |
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10 | #include "main.h"
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11 |
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12 | #include <Eigen/Core>
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13 |
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14 | #ifdef EIGEN_HAVE_RVALUE_REFERENCES
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15 | template <typename MatrixType>
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16 | void rvalue_copyassign(const MatrixType& m)
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17 | {
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18 |
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19 | typedef typename internal::traits<MatrixType>::Scalar Scalar;
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20 |
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21 | // create a temporary which we are about to destroy by moving
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22 | MatrixType tmp = m;
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23 | long src_address = reinterpret_cast<long>(tmp.data());
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24 |
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25 | // move the temporary to n
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26 | MatrixType n = std::move(tmp);
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27 | long dst_address = reinterpret_cast<long>(n.data());
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28 |
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29 | if (MatrixType::RowsAtCompileTime==Dynamic|| MatrixType::ColsAtCompileTime==Dynamic)
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30 | {
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31 | // verify that we actually moved the guts
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32 | VERIFY_IS_EQUAL(src_address, dst_address);
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33 | }
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34 |
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35 | // verify that the content did not change
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36 | Scalar abs_diff = (m-n).array().abs().sum();
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37 | VERIFY_IS_EQUAL(abs_diff, Scalar(0));
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38 | }
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39 | #else
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40 | template <typename MatrixType>
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41 | void rvalue_copyassign(const MatrixType&) {}
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42 | #endif
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43 |
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44 | void test_rvalue_types()
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45 | {
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46 | CALL_SUBTEST_1(rvalue_copyassign( MatrixXf::Random(50,50).eval() ));
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47 | CALL_SUBTEST_1(rvalue_copyassign( ArrayXXf::Random(50,50).eval() ));
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48 |
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49 | CALL_SUBTEST_1(rvalue_copyassign( Matrix<float,1,Dynamic>::Random(50).eval() ));
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50 | CALL_SUBTEST_1(rvalue_copyassign( Array<float,1,Dynamic>::Random(50).eval() ));
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51 |
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52 | CALL_SUBTEST_1(rvalue_copyassign( Matrix<float,Dynamic,1>::Random(50).eval() ));
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53 | CALL_SUBTEST_1(rvalue_copyassign( Array<float,Dynamic,1>::Random(50).eval() ));
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54 |
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55 | CALL_SUBTEST_2(rvalue_copyassign( Array<float,2,1>::Random().eval() ));
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56 | CALL_SUBTEST_2(rvalue_copyassign( Array<float,3,1>::Random().eval() ));
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57 | CALL_SUBTEST_2(rvalue_copyassign( Array<float,4,1>::Random().eval() ));
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58 |
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59 | CALL_SUBTEST_2(rvalue_copyassign( Array<float,2,2>::Random().eval() ));
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60 | CALL_SUBTEST_2(rvalue_copyassign( Array<float,3,3>::Random().eval() ));
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61 | CALL_SUBTEST_2(rvalue_copyassign( Array<float,4,4>::Random().eval() ));
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62 | }
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