1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. Eigen itself is part of the KDE project. 3 // 4 // Copyright (C) 2008 Gael Guennebaud <g.gael (at) free.fr> 5 // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1 (at) gmail.com> 6 // 7 // This Source Code Form is subject to the terms of the Mozilla 8 // Public License v. 2.0. If a copy of the MPL was not distributed 9 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. 10 11 // this hack is needed to make this file compiles with -pedantic (gcc) 12 #ifdef __GNUC__ 13 #define throw(X) 14 #endif 15 // discard stack allocation as that too bypasses malloc 16 #define EIGEN_STACK_ALLOCATION_LIMIT 0 17 // any heap allocation will raise an assert 18 #define EIGEN_NO_MALLOC 19 20 #include "main.h" 21 22 template<typename MatrixType> void nomalloc(const MatrixType& m) 23 { 24 /* this test check no dynamic memory allocation are issued with fixed-size matrices 25 */ 26 27 typedef typename MatrixType::Scalar Scalar; 28 typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType; 29 30 int rows = m.rows(); 31 int cols = m.cols(); 32 33 MatrixType m1 = MatrixType::Random(rows, cols), 34 m2 = MatrixType::Random(rows, cols), 35 m3(rows, cols), 36 mzero = MatrixType::Zero(rows, cols), 37 identity = Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime> 38 ::Identity(rows, rows), 39 square = Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime> 40 ::Random(rows, rows); 41 VectorType v1 = VectorType::Random(rows), 42 v2 = VectorType::Random(rows), 43 vzero = VectorType::Zero(rows); 44 45 Scalar s1 = ei_random<Scalar>(); 46 47 int r = ei_random<int>(0, rows-1), 48 c = ei_random<int>(0, cols-1); 49 50 VERIFY_IS_APPROX((m1+m2)*s1, s1*m1+s1*m2); 51 VERIFY_IS_APPROX((m1+m2)(r,c), (m1(r,c))+(m2(r,c))); 52 VERIFY_IS_APPROX(m1.cwise() * m1.block(0,0,rows,cols), m1.cwise() * m1); 53 VERIFY_IS_APPROX((m1*m1.transpose())*m2, m1*(m1.transpose()*m2)); 54 } 55 56 void test_eigen2_nomalloc() 57 { 58 // check that our operator new is indeed called: 59 VERIFY_RAISES_ASSERT(MatrixXd dummy = MatrixXd::Random(3,3)); 60 CALL_SUBTEST_1( nomalloc(Matrix<float, 1, 1>()) ); 61 CALL_SUBTEST_2( nomalloc(Matrix4d()) ); 62 CALL_SUBTEST_3( nomalloc(Matrix<float,32,32>()) ); 63 } 64
