1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2008-2014 Gael Guennebaud <gael.guennebaud@inria.fr>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9
10 #ifndef EIGEN_SPARSE_FUZZY_H
11 #define EIGEN_SPARSE_FUZZY_H
12
13 namespace Eigen {
14
15 template<typename Derived>
16 template<typename OtherDerived>
isApprox(const SparseMatrixBase<OtherDerived> & other,const RealScalar & prec)17 bool SparseMatrixBase<Derived>::isApprox(const SparseMatrixBase<OtherDerived>& other, const RealScalar &prec) const
18 {
19 const typename internal::nested_eval<Derived,2,PlainObject>::type actualA(derived());
20 typename internal::conditional<bool(IsRowMajor)==bool(OtherDerived::IsRowMajor),
21 const typename internal::nested_eval<OtherDerived,2,PlainObject>::type,
22 const PlainObject>::type actualB(other.derived());
23
24 return (actualA - actualB).squaredNorm() <= prec * prec * numext::mini(actualA.squaredNorm(), actualB.squaredNorm());
25 }
26
27 } // end namespace Eigen
28
29 #endif // EIGEN_SPARSE_FUZZY_H
30