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eigen/test/resize.cpp

42 lines
1.1 KiB
C++

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2009 Keir Mierle <mierle@gmail.com>
//
// 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<DenseIndex rows, DenseIndex cols>
void resizeLikeTest()
{
MatrixXf A(rows, cols);
MatrixXf B;
Matrix<double, rows, cols> C;
B.resizeLike(A);
C.resizeLike(B); // Shouldn't crash.
VERIFY(B.rows() == rows && B.cols() == cols);
VectorXf x(rows);
RowVectorXf y;
y.resizeLike(x);
VERIFY(y.rows() == 1 && y.cols() == rows);
y.resize(cols);
x.resizeLike(y);
VERIFY(x.rows() == cols && x.cols() == 1);
}
void resizeLikeTest12() { resizeLikeTest<1,2>(); }
void resizeLikeTest1020() { resizeLikeTest<10,20>(); }
void resizeLikeTest31() { resizeLikeTest<3,1>(); }
void test_resize()
{
CALL_SUBTEST(resizeLikeTest12() );
CALL_SUBTEST(resizeLikeTest1020() );
CALL_SUBTEST(resizeLikeTest31() );
}