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
12template<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
21void 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