diff options
Diffstat (limited to 'eigen/test/eigen2/eigen2_prec_inverse_4x4.cpp')
-rw-r--r-- | eigen/test/eigen2/eigen2_prec_inverse_4x4.cpp | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/eigen/test/eigen2/eigen2_prec_inverse_4x4.cpp b/eigen/test/eigen2/eigen2_prec_inverse_4x4.cpp deleted file mode 100644 index 8bfa556..0000000 --- a/eigen/test/eigen2/eigen2_prec_inverse_4x4.cpp +++ /dev/null @@ -1,84 +0,0 @@ -// This file is part of Eigen, a lightweight C++ template library -// for linear algebra. -// -// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@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" -#include <Eigen/LU> -#include <algorithm> - -template<typename T> std::string type_name() { return "other"; } -template<> std::string type_name<float>() { return "float"; } -template<> std::string type_name<double>() { return "double"; } -template<> std::string type_name<int>() { return "int"; } -template<> std::string type_name<std::complex<float> >() { return "complex<float>"; } -template<> std::string type_name<std::complex<double> >() { return "complex<double>"; } -template<> std::string type_name<std::complex<int> >() { return "complex<int>"; } - -#define EIGEN_DEBUG_VAR(x) std::cerr << #x << " = " << x << std::endl; - -template<typename T> inline typename NumTraits<T>::Real epsilon() -{ - return std::numeric_limits<typename NumTraits<T>::Real>::epsilon(); -} - -template<typename MatrixType> void inverse_permutation_4x4() -{ - typedef typename MatrixType::Scalar Scalar; - typedef typename MatrixType::RealScalar RealScalar; - Vector4i indices(0,1,2,3); - for(int i = 0; i < 24; ++i) - { - MatrixType m = MatrixType::Zero(); - m(indices(0),0) = 1; - m(indices(1),1) = 1; - m(indices(2),2) = 1; - m(indices(3),3) = 1; - MatrixType inv = m.inverse(); - double error = double( (m*inv-MatrixType::Identity()).norm() / epsilon<Scalar>() ); - VERIFY(error == 0.0); - std::next_permutation(indices.data(),indices.data()+4); - } -} - -template<typename MatrixType> void inverse_general_4x4(int repeat) -{ - typedef typename MatrixType::Scalar Scalar; - typedef typename MatrixType::RealScalar RealScalar; - double error_sum = 0., error_max = 0.; - for(int i = 0; i < repeat; ++i) - { - MatrixType m; - RealScalar absdet; - do { - m = MatrixType::Random(); - absdet = ei_abs(m.determinant()); - } while(absdet < 10 * epsilon<Scalar>()); - MatrixType inv = m.inverse(); - double error = double( (m*inv-MatrixType::Identity()).norm() * absdet / epsilon<Scalar>() ); - error_sum += error; - error_max = std::max(error_max, error); - } - std::cerr << "inverse_general_4x4, Scalar = " << type_name<Scalar>() << std::endl; - double error_avg = error_sum / repeat; - EIGEN_DEBUG_VAR(error_avg); - EIGEN_DEBUG_VAR(error_max); - VERIFY(error_avg < (NumTraits<Scalar>::IsComplex ? 8.0 : 1.25)); - VERIFY(error_max < (NumTraits<Scalar>::IsComplex ? 64.0 : 20.0)); -} - -void test_eigen2_prec_inverse_4x4() -{ - CALL_SUBTEST_1((inverse_permutation_4x4<Matrix4f>())); - CALL_SUBTEST_1(( inverse_general_4x4<Matrix4f>(200000 * g_repeat) )); - - CALL_SUBTEST_2((inverse_permutation_4x4<Matrix<double,4,4,RowMajor> >())); - CALL_SUBTEST_2(( inverse_general_4x4<Matrix<double,4,4,RowMajor> >(200000 * g_repeat) )); - - CALL_SUBTEST_3((inverse_permutation_4x4<Matrix4cf>())); - CALL_SUBTEST_3((inverse_general_4x4<Matrix4cf>(50000 * g_repeat))); -} |