/usr/include/eigen3/Eigen/src/misc/Solve.h is in libeigen3-dev 3.2.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | // 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/.
#ifndef EIGEN_MISC_SOLVE_H
#define EIGEN_MISC_SOLVE_H
namespace Eigen {
namespace internal {
/** \class solve_retval_base
*
*/
template<typename DecompositionType, typename Rhs>
struct traits<solve_retval_base<DecompositionType, Rhs> >
{
typedef typename DecompositionType::MatrixType MatrixType;
typedef Matrix<typename Rhs::Scalar,
MatrixType::ColsAtCompileTime,
Rhs::ColsAtCompileTime,
Rhs::PlainObject::Options,
MatrixType::MaxColsAtCompileTime,
Rhs::MaxColsAtCompileTime> ReturnType;
};
template<typename _DecompositionType, typename Rhs> struct solve_retval_base
: public ReturnByValue<solve_retval_base<_DecompositionType, Rhs> >
{
typedef typename remove_all<typename Rhs::Nested>::type RhsNestedCleaned;
typedef _DecompositionType DecompositionType;
typedef ReturnByValue<solve_retval_base> Base;
typedef typename Base::Index Index;
solve_retval_base(const DecompositionType& dec, const Rhs& rhs)
: m_dec(dec), m_rhs(rhs)
{}
inline Index rows() const { return m_dec.cols(); }
inline Index cols() const { return m_rhs.cols(); }
inline const DecompositionType& dec() const { return m_dec; }
inline const RhsNestedCleaned& rhs() const { return m_rhs; }
template<typename Dest> inline void evalTo(Dest& dst) const
{
static_cast<const solve_retval<DecompositionType,Rhs>*>(this)->evalTo(dst);
}
protected:
const DecompositionType& m_dec;
typename Rhs::Nested m_rhs;
};
} // end namespace internal
#define EIGEN_MAKE_SOLVE_HELPERS(DecompositionType,Rhs) \
typedef typename DecompositionType::MatrixType MatrixType; \
typedef typename MatrixType::Scalar Scalar; \
typedef typename MatrixType::RealScalar RealScalar; \
typedef typename MatrixType::Index Index; \
typedef Eigen::internal::solve_retval_base<DecompositionType,Rhs> Base; \
using Base::dec; \
using Base::rhs; \
using Base::rows; \
using Base::cols; \
solve_retval(const DecompositionType& dec, const Rhs& rhs) \
: Base(dec, rhs) {}
} // end namespace Eigen
#endif // EIGEN_MISC_SOLVE_H
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