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98 lines
3.9 KiB
C++
98 lines
3.9 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 20015 Gael Guennebaud <gael.guennebaud@inria.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// This unit test cannot be easily written to work with EIGEN_DEFAULT_TO_ROW_MAJOR
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#ifdef EIGEN_DEFAULT_TO_ROW_MAJOR
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#undef EIGEN_DEFAULT_TO_ROW_MAJOR
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#endif
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static long int nb_temporaries;
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inline void on_temporary_creation() {
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// here's a great place to set a breakpoint when debugging failures in this test!
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nb_temporaries++;
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}
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#define EIGEN_SPARSE_CREATE_TEMPORARY_PLUGIN { on_temporary_creation(); }
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#include "main.h"
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#include <Eigen/SparseCore>
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#define VERIFY_EVALUATION_COUNT(XPR,N) {\
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nb_temporaries = 0; \
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XPR; \
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if(nb_temporaries!=N) std::cerr << "nb_temporaries == " << nb_temporaries << "\n"; \
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VERIFY( (#XPR) && nb_temporaries==N ); \
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}
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template<typename PlainObjectType> void check_const_correctness(const PlainObjectType&)
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{
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// verify that ref-to-const don't have LvalueBit
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typedef typename internal::add_const<PlainObjectType>::type ConstPlainObjectType;
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VERIFY( !(internal::traits<Ref<ConstPlainObjectType> >::Flags & LvalueBit) );
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VERIFY( !(internal::traits<Ref<ConstPlainObjectType, Aligned> >::Flags & LvalueBit) );
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VERIFY( !(Ref<ConstPlainObjectType>::Flags & LvalueBit) );
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VERIFY( !(Ref<ConstPlainObjectType, Aligned>::Flags & LvalueBit) );
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}
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template<typename B>
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EIGEN_DONT_INLINE void call_ref_1(Ref<SparseMatrix<float> > a, const B &b) { VERIFY_IS_EQUAL(a.toDense(),b.toDense()); }
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template<typename B>
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EIGEN_DONT_INLINE void call_ref_2(const Ref<const SparseMatrix<float> >& a, const B &b) { VERIFY_IS_EQUAL(a.toDense(),b.toDense()); }
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void call_ref()
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{
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// SparseVector<std::complex<float> > ca = VectorXcf::Random(10).sparseView();
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// SparseVector<float> a = VectorXf::Random(10).sparseView();
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SparseMatrix<float> A = MatrixXf::Random(10,10).sparseView();
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SparseMatrix<float,RowMajor> B = MatrixXf::Random(10,10).sparseView();
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const SparseMatrix<float>& Ac(A);
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Block<SparseMatrix<float> > Ab(A,0,1, 3,3);
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const Block<SparseMatrix<float> > Abc(A,0,1,3,3);
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VERIFY_EVALUATION_COUNT( call_ref_1(A, A), 0);
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// VERIFY_EVALUATION_COUNT( call_ref_1(Ac, Ac), 0); // does not compile on purpose
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VERIFY_EVALUATION_COUNT( call_ref_2(A, A), 0);
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VERIFY_EVALUATION_COUNT( call_ref_2(A.transpose(), A.transpose()), 1);
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VERIFY_EVALUATION_COUNT( call_ref_2(Ac,Ac), 0);
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VERIFY_EVALUATION_COUNT( call_ref_2(A+A,2*Ac), 1);
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VERIFY_EVALUATION_COUNT( call_ref_2(B, B), 1);
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VERIFY_EVALUATION_COUNT( call_ref_2(B.transpose(), B.transpose()), 0);
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VERIFY_EVALUATION_COUNT( call_ref_2(A*A, A*A), 1);
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Ref<SparseMatrix<float> > Ar(A);
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VERIFY_IS_APPROX(Ar+Ar, A+A);
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VERIFY_EVALUATION_COUNT( call_ref_1(Ar, A), 0);
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VERIFY_EVALUATION_COUNT( call_ref_2(Ar, A), 0);
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Ref<SparseMatrix<float,RowMajor> > Br(B);
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VERIFY_EVALUATION_COUNT( call_ref_1(Br.transpose(), Br.transpose()), 0);
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VERIFY_EVALUATION_COUNT( call_ref_2(Br, Br), 1);
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VERIFY_EVALUATION_COUNT( call_ref_2(Br.transpose(), Br.transpose()), 0);
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Ref<const SparseMatrix<float> > Arc(A);
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// VERIFY_EVALUATION_COUNT( call_ref_1(Arc, Arc), 0); // does not compile on purpose
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VERIFY_EVALUATION_COUNT( call_ref_2(Arc, Arc), 0);
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VERIFY_EVALUATION_COUNT( call_ref_2(A.middleCols(1,3), A.middleCols(1,3)), 1); // should be 0
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VERIFY_EVALUATION_COUNT( call_ref_2(A.block(1,1,3,3), A.block(1,1,3,3)), 1); // should be 0 (allocate starts/nnz only)
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}
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void test_sparse_ref()
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{
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for(int i = 0; i < g_repeat; i++) {
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CALL_SUBTEST_1( check_const_correctness(SparseMatrix<float>()) );
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CALL_SUBTEST_1( check_const_correctness(SparseMatrix<double,RowMajor>()) );
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CALL_SUBTEST_2( call_ref() );
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}
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}
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