MovableScalar.h (1079B)
1 // This file is part of Eigen, a lightweight C++ template library 2 // for linear algebra. 3 // 4 // Copyright (C) 2020 Sebastien Boisvert <seb@boisvert.info> 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_MISC_MOVABLE_SCALAR_H 11 #define EIGEN_MISC_MOVABLE_SCALAR_H 12 13 #include <vector> 14 15 namespace Eigen 16 { 17 template <typename Scalar, typename Base = std::vector<Scalar>> 18 struct MovableScalar : public Base 19 { 20 MovableScalar() = default; 21 ~MovableScalar() = default; 22 MovableScalar(const MovableScalar&) = default; 23 MovableScalar(MovableScalar&& other) = default; 24 MovableScalar& operator=(const MovableScalar&) = default; 25 MovableScalar& operator=(MovableScalar&& other) = default; 26 MovableScalar(Scalar scalar) : Base(100, scalar) {} 27 28 operator Scalar() const { return this->size() > 0 ? this->back() : Scalar(); } 29 }; 30 31 template<> struct NumTraits<MovableScalar<float>> : GenericNumTraits<float> {}; 32 } 33 34 #endif 35