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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 20015 Gael Guennebaud <gael.guennebaud@inria.fr>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This unit test cannot be easily written to work with EIGEN_DEFAULT_TO_ROW_MAJOR
#ifdef EIGEN_DEFAULT_TO_ROW_MAJOR
#undef EIGEN_DEFAULT_TO_ROW_MAJOR
#endif
static long int nb_temporaries;
inline void on_temporary_creation() { // here's a great place to set a breakpoint when debugging failures in this test!
nb_temporaries++;}
#define EIGEN_SPARSE_CREATE_TEMPORARY_PLUGIN { on_temporary_creation(); }
#include "main.h"
#include <Eigen/SparseCore>
#define VERIFY_EVALUATION_COUNT(XPR,N) {\
nb_temporaries = 0; \ CALL_SUBTEST( XPR ); \ if(nb_temporaries!=N) std::cerr << "nb_temporaries == " << nb_temporaries << "\n"; \ VERIFY( (#XPR) && nb_temporaries==N ); \ }
template<typename PlainObjectType> void check_const_correctness(const PlainObjectType&){ // verify that ref-to-const don't have LvalueBit
typedef typename internal::add_const<PlainObjectType>::type ConstPlainObjectType; VERIFY( !(internal::traits<Ref<ConstPlainObjectType> >::Flags & LvalueBit) ); VERIFY( !(internal::traits<Ref<ConstPlainObjectType, Aligned> >::Flags & LvalueBit) ); VERIFY( !(Ref<ConstPlainObjectType>::Flags & LvalueBit) ); VERIFY( !(Ref<ConstPlainObjectType, Aligned>::Flags & LvalueBit) );}
template<typename B>EIGEN_DONT_INLINE void call_ref_1(Ref<SparseMatrix<float> > a, const B &b) { VERIFY_IS_EQUAL(a.toDense(),b.toDense()); }
template<typename B>EIGEN_DONT_INLINE void call_ref_2(const Ref<const SparseMatrix<float> >& a, const B &b) { VERIFY_IS_EQUAL(a.toDense(),b.toDense()); }
template<typename B>EIGEN_DONT_INLINE void call_ref_3(const Ref<const SparseMatrix<float>, StandardCompressedFormat>& a, const B &b) { VERIFY(a.isCompressed()); VERIFY_IS_EQUAL(a.toDense(),b.toDense());}
template<typename B>EIGEN_DONT_INLINE void call_ref_4(Ref<SparseVector<float> > a, const B &b) { VERIFY_IS_EQUAL(a.toDense(),b.toDense()); }
template<typename B>EIGEN_DONT_INLINE void call_ref_5(const Ref<const SparseVector<float> >& a, const B &b) { VERIFY_IS_EQUAL(a.toDense(),b.toDense()); }
void call_ref(){ SparseMatrix<float> A = MatrixXf::Random(10,10).sparseView(0.5,1); SparseMatrix<float,RowMajor> B = MatrixXf::Random(10,10).sparseView(0.5,1); SparseMatrix<float> C = MatrixXf::Random(10,10).sparseView(0.5,1); C.reserve(VectorXi::Constant(C.outerSize(), 2)); const SparseMatrix<float>& Ac(A); Block<SparseMatrix<float> > Ab(A,0,1, 3,3); const Block<SparseMatrix<float> > Abc(A,0,1,3,3); SparseVector<float> vc = VectorXf::Random(10).sparseView(0.5,1); SparseVector<float,RowMajor> vr = VectorXf::Random(10).sparseView(0.5,1); SparseMatrix<float> AA = A*A;
VERIFY_EVALUATION_COUNT( call_ref_1(A, A), 0);// VERIFY_EVALUATION_COUNT( call_ref_1(Ac, Ac), 0); // does not compile on purpose
VERIFY_EVALUATION_COUNT( call_ref_2(A, A), 0); VERIFY_EVALUATION_COUNT( call_ref_3(A, A), 0); VERIFY_EVALUATION_COUNT( call_ref_2(A.transpose(), A.transpose()), 1); VERIFY_EVALUATION_COUNT( call_ref_3(A.transpose(), A.transpose()), 1); VERIFY_EVALUATION_COUNT( call_ref_2(Ac,Ac), 0); VERIFY_EVALUATION_COUNT( call_ref_3(Ac,Ac), 0); VERIFY_EVALUATION_COUNT( call_ref_2(A+A,2*Ac), 1); VERIFY_EVALUATION_COUNT( call_ref_3(A+A,2*Ac), 1); VERIFY_EVALUATION_COUNT( call_ref_2(B, B), 1); VERIFY_EVALUATION_COUNT( call_ref_3(B, B), 1); VERIFY_EVALUATION_COUNT( call_ref_2(B.transpose(), B.transpose()), 0); VERIFY_EVALUATION_COUNT( call_ref_3(B.transpose(), B.transpose()), 0); VERIFY_EVALUATION_COUNT( call_ref_2(A*A, AA), 1); VERIFY_EVALUATION_COUNT( call_ref_3(A*A, AA), 1); VERIFY(!C.isCompressed()); VERIFY_EVALUATION_COUNT( call_ref_3(C, C), 1); Ref<SparseMatrix<float> > Ar(A); VERIFY_IS_APPROX(Ar+Ar, A+A); VERIFY_EVALUATION_COUNT( call_ref_1(Ar, A), 0); VERIFY_EVALUATION_COUNT( call_ref_2(Ar, A), 0); Ref<SparseMatrix<float,RowMajor> > Br(B); VERIFY_EVALUATION_COUNT( call_ref_1(Br.transpose(), Br.transpose()), 0); VERIFY_EVALUATION_COUNT( call_ref_2(Br, Br), 1); VERIFY_EVALUATION_COUNT( call_ref_2(Br.transpose(), Br.transpose()), 0); Ref<const SparseMatrix<float> > Arc(A);// VERIFY_EVALUATION_COUNT( call_ref_1(Arc, Arc), 0); // does not compile on purpose
VERIFY_EVALUATION_COUNT( call_ref_2(Arc, Arc), 0); VERIFY_EVALUATION_COUNT( call_ref_2(A.middleCols(1,3), A.middleCols(1,3)), 0); VERIFY_EVALUATION_COUNT( call_ref_2(A.col(2), A.col(2)), 0); VERIFY_EVALUATION_COUNT( call_ref_2(vc, vc), 0); VERIFY_EVALUATION_COUNT( call_ref_2(vr.transpose(), vr.transpose()), 0); VERIFY_EVALUATION_COUNT( call_ref_2(vr, vr.transpose()), 0); 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)
VERIFY_EVALUATION_COUNT( call_ref_4(vc, vc), 0); VERIFY_EVALUATION_COUNT( call_ref_4(vr, vr.transpose()), 0); VERIFY_EVALUATION_COUNT( call_ref_5(vc, vc), 0); VERIFY_EVALUATION_COUNT( call_ref_5(vr, vr.transpose()), 0); VERIFY_EVALUATION_COUNT( call_ref_4(A.col(2), A.col(2)), 0); VERIFY_EVALUATION_COUNT( call_ref_5(A.col(2), A.col(2)), 0); // VERIFY_EVALUATION_COUNT( call_ref_4(A.row(2), A.row(2).transpose()), 1); // does not compile on purpose
VERIFY_EVALUATION_COUNT( call_ref_5(A.row(2), A.row(2).transpose()), 1);}
void test_sparse_ref(){ for(int i = 0; i < g_repeat; i++) { CALL_SUBTEST_1( check_const_correctness(SparseMatrix<float>()) ); CALL_SUBTEST_1( check_const_correctness(SparseMatrix<double,RowMajor>()) ); CALL_SUBTEST_2( call_ref() );
CALL_SUBTEST_3( check_const_correctness(SparseVector<float>()) ); CALL_SUBTEST_3( check_const_correctness(SparseVector<double,RowMajor>()) ); }}
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