mirror of
https://gitlab.com/libeigen/eigen.git
synced 2026-04-10 11:34:33 +08:00
3036eeca0a
release of tvmet (inactive for 2 years and developer unreachable) as the basis for eigen2, because it provides seemingly good expression template mechanisms, we want that, and it would take years to reinvent that wheel. We'll see. So this commit imports the last tvmet release.
205 lines
4.7 KiB
C++
205 lines
4.7 KiB
C++
/*
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* Tiny Vector Matrix Library
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* Dense Vector Matrix Libary of Tiny size using Expression Templates
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*
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* Copyright (C) 2001 - 2003 Olaf Petzold <opetzold@users.sourceforge.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: TestXprVectorOperators.h,v 1.1 2004/04/24 11:55:15 opetzold Exp $
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*/
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#ifndef TVMET_TEST_XPR_VECTOROPS_H
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#define TVMET_TEST_XPR_VECTOROPS_H
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#include <limits>
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#include <cppunit/extensions/HelperMacros.h>
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#include <tvmet/Vector.h>
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#include <tvmet/util/General.h>
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template <class T>
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class TestXprVectorOperators : public CppUnit::TestFixture
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{
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CPPUNIT_TEST_SUITE( TestXprVectorOperators );
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CPPUNIT_TEST( scalarOps1 );
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CPPUNIT_TEST( scalarOps2 );
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CPPUNIT_TEST( globalXprVectorOps );
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CPPUNIT_TEST( negate );
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CPPUNIT_TEST_SUITE_END();
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private:
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typedef tvmet::Vector<T, 3> vector_type;
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public:
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TestXprVectorOperators()
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: vZero(0), vOne(1), scalar(10), scalar2(2) { }
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public: // cppunit interface
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/** cppunit hook for fixture set up. */
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void setUp();
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/** cppunit hook for fixture tear down. */
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void tearDown();
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protected:
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void scalarOps1();
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void scalarOps2();
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void globalXprVectorOps();
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void negate();
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private:
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const vector_type vZero;
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const vector_type vOne;
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vector_type v1;
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vector_type vBig; /**< vector 10x bigger than v1 */
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private:
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const T scalar;
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const T scalar2;
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};
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/*****************************************************************************
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* Implementation Part I (cppunit part)
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****************************************************************************/
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template <class T>
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void TestXprVectorOperators<T>::setUp() {
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v1 = 1,2,3;
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vBig = 10,20,30;
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}
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template <class T>
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void TestXprVectorOperators<T>::tearDown() { }
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/*****************************************************************************
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* Implementation Part II
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****************************************************************************/
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/*
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* global math operators with scalars
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* Note: checked against member operators since they are allready checked
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*/
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template <class T>
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void
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TestXprVectorOperators<T>::scalarOps1() {
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vector_type r1(v1), r2(v1), r3(v1), r4(vBig);
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vector_type t1(0), t2(0), t3(0), t4(0);
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r1 += scalar;
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r2 -= scalar;
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r3 *= scalar;
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r4 /= scalar;
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// all element wise
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t1 = T(1)*v1 + scalar;
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t2 = T(1)*v1 - scalar;
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t3 = T(1)*v1 * scalar;
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t4 = T(1)*vBig / scalar;
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CPPUNIT_ASSERT( all_elements(t1 == r1) );
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CPPUNIT_ASSERT( all_elements(t2 == r2) );
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CPPUNIT_ASSERT( all_elements(t3 == r3) );
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CPPUNIT_ASSERT( all_elements(t4 == r4) );
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}
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/*
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* global math operators with scalars, part II
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* Note: checked against member operators since they are allready checked
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*/
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template <class T>
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void
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TestXprVectorOperators<T>::scalarOps2() {
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vector_type r1(v1), r2(v1);
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vector_type t1(0), t2(0);
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r1 += scalar;
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r2 *= scalar;
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// all element wise
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t1 = scalar + T(1)*v1;
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t2 = scalar * T(1)*v1;
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CPPUNIT_ASSERT( all_elements(t1 == r1) );
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CPPUNIT_ASSERT( all_elements(t2 == r2) );
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}
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/*
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* global math operators with vector expressions
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*/
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template <class T>
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void
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TestXprVectorOperators<T>::globalXprVectorOps() {
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vector_type r1(v1), r2(v1), r3(v1), r4(v1);
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vector_type t1(0), t2(0), t3(0), t4(0);
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vector_type v2(v1);
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CPPUNIT_ASSERT( all_elements( v1 == v2) );
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r1 += v1;
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r2 -= v1;
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r3 *= v1;
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{
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using namespace tvmet::element_wise;
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r4 /= v1;
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}
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CPPUNIT_ASSERT( all_elements(r2 == T(0)) );
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CPPUNIT_ASSERT( all_elements(r4 == T(1)) );
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t1 = T(1)*v1 + T(1)*v2;
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t2 = T(1)*v1 - T(1)*v2;
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t3 = T(1)*v1 * T(1)*v2;
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{
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using namespace tvmet::element_wise;
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t4 = (T(1)*v1) / (T(1)*v1);
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}
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CPPUNIT_ASSERT( all_elements(t1 == r1) );
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CPPUNIT_ASSERT( all_elements(t2 == r2) );
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CPPUNIT_ASSERT( all_elements(t3 == r3) );
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CPPUNIT_ASSERT( all_elements(t4 == r4) );
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}
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/*
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* negate operators
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*/
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template <class T>
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void
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TestXprVectorOperators<T>::negate() {
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vector_type v2;
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v2 = -(T(1)*vOne);
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CPPUNIT_ASSERT( all_elements(v2 == T(-1)) );
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}
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#endif // TVMET_TEST_XPR_VECTOROPS_H
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// Local Variables:
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// mode:C++
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// End:
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