1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9
10 #include "main.h"
11
verifySizeOf(const MatrixType &)12 template<typename MatrixType> void verifySizeOf(const MatrixType&)
13 {
14 typedef typename MatrixType::Scalar Scalar;
15 if (MatrixType::RowsAtCompileTime!=Dynamic && MatrixType::ColsAtCompileTime!=Dynamic)
16 VERIFY(std::ptrdiff_t(sizeof(MatrixType))==std::ptrdiff_t(sizeof(Scalar))*std::ptrdiff_t(MatrixType::SizeAtCompileTime));
17 else
18 VERIFY(sizeof(MatrixType)==sizeof(Scalar*) + 2 * sizeof(typename MatrixType::Index));
19 }
20
test_sizeof()21 void test_sizeof()
22 {
23 CALL_SUBTEST(verifySizeOf(Matrix<float, 1, 1>()) );
24 CALL_SUBTEST(verifySizeOf(Matrix4d()) );
25 CALL_SUBTEST(verifySizeOf(Matrix<double, 4, 2>()) );
26 CALL_SUBTEST(verifySizeOf(Matrix<bool, 7, 5>()) );
27 CALL_SUBTEST(verifySizeOf(MatrixXcf(3, 3)) );
28 CALL_SUBTEST(verifySizeOf(MatrixXi(8, 12)) );
29 CALL_SUBTEST(verifySizeOf(MatrixXcd(20, 20)) );
30 CALL_SUBTEST(verifySizeOf(Matrix<float, 100, 100>()) );
31
32 VERIFY(sizeof(std::complex<float>) == 2*sizeof(float));
33 VERIFY(sizeof(std::complex<double>) == 2*sizeof(double));
34 }
35