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Diffstat (limited to 'test/sparse_ref.cpp')
| -rw-r--r-- | test/sparse_ref.cpp | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/test/sparse_ref.cpp b/test/sparse_ref.cpp new file mode 100644 index 000000000..5e9607234 --- /dev/null +++ b/test/sparse_ref.cpp @@ -0,0 +1,139 @@ +// 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), 3); + VERIFY_EVALUATION_COUNT( call_ref_3(A*A, AA), 3); + + 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>()) ); + } +} |