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Diffstat (limited to 'eigen/test/sizeof.cpp')
| -rw-r--r-- | eigen/test/sizeof.cpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/eigen/test/sizeof.cpp b/eigen/test/sizeof.cpp new file mode 100644 index 0000000..d9ad356 --- /dev/null +++ b/eigen/test/sizeof.cpp @@ -0,0 +1,34 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2008 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" + +template<typename MatrixType> void verifySizeOf(const MatrixType&) +{ + typedef typename MatrixType::Scalar Scalar; + if (MatrixType::RowsAtCompileTime!=Dynamic && MatrixType::ColsAtCompileTime!=Dynamic) + VERIFY(std::ptrdiff_t(sizeof(MatrixType))==std::ptrdiff_t(sizeof(Scalar))*std::ptrdiff_t(MatrixType::SizeAtCompileTime)); + else + VERIFY(sizeof(MatrixType)==sizeof(Scalar*) + 2 * sizeof(typename MatrixType::Index)); +} + +void test_sizeof() +{ + CALL_SUBTEST(verifySizeOf(Matrix<float, 1, 1>()) ); + CALL_SUBTEST(verifySizeOf(Matrix4d()) ); + CALL_SUBTEST(verifySizeOf(Matrix<double, 4, 2>()) ); + CALL_SUBTEST(verifySizeOf(Matrix<bool, 7, 5>()) ); + CALL_SUBTEST(verifySizeOf(MatrixXcf(3, 3)) ); + CALL_SUBTEST(verifySizeOf(MatrixXi(8, 12)) ); + CALL_SUBTEST(verifySizeOf(MatrixXcd(20, 20)) ); + CALL_SUBTEST(verifySizeOf(Matrix<float, 100, 100>()) ); + + VERIFY(sizeof(std::complex<float>) == 2*sizeof(float)); + VERIFY(sizeof(std::complex<double>) == 2*sizeof(double)); +} |