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Diffstat (limited to 'test/num_dimensions.cpp')
| -rw-r--r-- | test/num_dimensions.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/test/num_dimensions.cpp b/test/num_dimensions.cpp new file mode 100644 index 000000000..7ad7ef697 --- /dev/null +++ b/test/num_dimensions.cpp @@ -0,0 +1,90 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2018 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/. + +#include "main.h" +#include <Eigen/SparseCore> + +template<int ExpectedDim,typename Xpr> +void check_dim(const Xpr& ) { + STATIC_CHECK( Xpr::NumDimensions == ExpectedDim ); +} + +#if EIGEN_HAS_CXX11 +template<template <typename,int,int> class Object> +void map_num_dimensions() +{ + typedef Object<double, 1, 1> ArrayScalarType; + typedef Object<double, 2, 1> ArrayVectorType; + typedef Object<double, 1, 2> TransposeArrayVectorType; + typedef Object<double, 2, 2> ArrayType; + typedef Object<double, Eigen::Dynamic, 1> DynamicArrayVectorType; + typedef Object<double, 1, Eigen::Dynamic> DynamicTransposeArrayVectorType; + typedef Object<double, Eigen::Dynamic, Eigen::Dynamic> DynamicArrayType; + + STATIC_CHECK(ArrayScalarType::NumDimensions == 0); + STATIC_CHECK(ArrayVectorType::NumDimensions == 1); + STATIC_CHECK(TransposeArrayVectorType::NumDimensions == 1); + STATIC_CHECK(ArrayType::NumDimensions == 2); + STATIC_CHECK(DynamicArrayVectorType::NumDimensions == 1); + STATIC_CHECK(DynamicTransposeArrayVectorType::NumDimensions == 1); + STATIC_CHECK(DynamicArrayType::NumDimensions == 2); + + typedef Eigen::Map<ArrayScalarType> ArrayScalarMap; + typedef Eigen::Map<ArrayVectorType> ArrayVectorMap; + typedef Eigen::Map<TransposeArrayVectorType> TransposeArrayVectorMap; + typedef Eigen::Map<ArrayType> ArrayMap; + typedef Eigen::Map<DynamicArrayVectorType> DynamicArrayVectorMap; + typedef Eigen::Map<DynamicTransposeArrayVectorType> DynamicTransposeArrayVectorMap; + typedef Eigen::Map<DynamicArrayType> DynamicArrayMap; + + STATIC_CHECK(ArrayScalarMap::NumDimensions == 0); + STATIC_CHECK(ArrayVectorMap::NumDimensions == 1); + STATIC_CHECK(TransposeArrayVectorMap::NumDimensions == 1); + STATIC_CHECK(ArrayMap::NumDimensions == 2); + STATIC_CHECK(DynamicArrayVectorMap::NumDimensions == 1); + STATIC_CHECK(DynamicTransposeArrayVectorMap::NumDimensions == 1); + STATIC_CHECK(DynamicArrayMap::NumDimensions == 2); +} + +template<typename Scalar, int Rows, int Cols> +using TArray = Array<Scalar,Rows,Cols>; + +template<typename Scalar, int Rows, int Cols> +using TMatrix = Matrix<Scalar,Rows,Cols>; + +#endif + +EIGEN_DECLARE_TEST(num_dimensions) +{ + int n = 10; + ArrayXXd A(n,n); + CALL_SUBTEST( check_dim<2>(A) ); + CALL_SUBTEST( check_dim<2>(A.block(1,1,2,2)) ); + CALL_SUBTEST( check_dim<1>(A.col(1)) ); + CALL_SUBTEST( check_dim<1>(A.row(1)) ); + + MatrixXd M(n,n); + CALL_SUBTEST( check_dim<0>(M.row(1)*M.col(1)) ); + + SparseMatrix<double> S(n,n); + CALL_SUBTEST( check_dim<2>(S) ); + CALL_SUBTEST( check_dim<2>(S.block(1,1,2,2)) ); + CALL_SUBTEST( check_dim<1>(S.col(1)) ); + CALL_SUBTEST( check_dim<1>(S.row(1)) ); + + SparseVector<double> s(n); + CALL_SUBTEST( check_dim<1>(s) ); + CALL_SUBTEST( check_dim<1>(s.head(2)) ); + + + #if EIGEN_HAS_CXX11 + CALL_SUBTEST( map_num_dimensions<TArray>() ); + CALL_SUBTEST( map_num_dimensions<TMatrix>() ); + #endif +} |