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Diffstat (limited to 'src/eigen/Eigen/src/Core/functors/StlFunctors.h')
-rw-r--r-- | src/eigen/Eigen/src/Core/functors/StlFunctors.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/eigen/Eigen/src/Core/functors/StlFunctors.h b/src/eigen/Eigen/src/Core/functors/StlFunctors.h new file mode 100644 index 000000000..9c1d75850 --- /dev/null +++ b/src/eigen/Eigen/src/Core/functors/StlFunctors.h @@ -0,0 +1,136 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2008-2010 Gael Guennebaud <gael.guennebaud@inria.fr> +// +// 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_STL_FUNCTORS_H +#define EIGEN_STL_FUNCTORS_H + +namespace Eigen { + +namespace internal { + +// default functor traits for STL functors: + +template<typename T> +struct functor_traits<std::multiplies<T> > +{ enum { Cost = NumTraits<T>::MulCost, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::divides<T> > +{ enum { Cost = NumTraits<T>::MulCost, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::plus<T> > +{ enum { Cost = NumTraits<T>::AddCost, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::minus<T> > +{ enum { Cost = NumTraits<T>::AddCost, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::negate<T> > +{ enum { Cost = NumTraits<T>::AddCost, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::logical_or<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::logical_and<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::logical_not<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::greater<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::less<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::greater_equal<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::less_equal<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::equal_to<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::not_equal_to<T> > +{ enum { Cost = 1, PacketAccess = false }; }; + +#if (__cplusplus < 201103L) && (EIGEN_COMP_MSVC <= 1900) +// std::binder* are deprecated since c++11 and will be removed in c++17 +template<typename T> +struct functor_traits<std::binder2nd<T> > +{ enum { Cost = functor_traits<T>::Cost, PacketAccess = false }; }; + +template<typename T> +struct functor_traits<std::binder1st<T> > +{ enum { Cost = functor_traits<T>::Cost, PacketAccess = false }; }; +#endif + +#if (__cplusplus < 201703L) && (EIGEN_COMP_MSVC < 1910) +// std::unary_negate is deprecated since c++17 and will be removed in c++20 +template<typename T> +struct functor_traits<std::unary_negate<T> > +{ enum { Cost = 1 + functor_traits<T>::Cost, PacketAccess = false }; }; + +// std::binary_negate is deprecated since c++17 and will be removed in c++20 +template<typename T> +struct functor_traits<std::binary_negate<T> > +{ enum { Cost = 1 + functor_traits<T>::Cost, PacketAccess = false }; }; +#endif + +#ifdef EIGEN_STDEXT_SUPPORT + +template<typename T0,typename T1> +struct functor_traits<std::project1st<T0,T1> > +{ enum { Cost = 0, PacketAccess = false }; }; + +template<typename T0,typename T1> +struct functor_traits<std::project2nd<T0,T1> > +{ enum { Cost = 0, PacketAccess = false }; }; + +template<typename T0,typename T1> +struct functor_traits<std::select2nd<std::pair<T0,T1> > > +{ enum { Cost = 0, PacketAccess = false }; }; + +template<typename T0,typename T1> +struct functor_traits<std::select1st<std::pair<T0,T1> > > +{ enum { Cost = 0, PacketAccess = false }; }; + +template<typename T0,typename T1> +struct functor_traits<std::unary_compose<T0,T1> > +{ enum { Cost = functor_traits<T0>::Cost + functor_traits<T1>::Cost, PacketAccess = false }; }; + +template<typename T0,typename T1,typename T2> +struct functor_traits<std::binary_compose<T0,T1,T2> > +{ enum { Cost = functor_traits<T0>::Cost + functor_traits<T1>::Cost + functor_traits<T2>::Cost, PacketAccess = false }; }; + +#endif // EIGEN_STDEXT_SUPPORT + +// allow to add new functors and specializations of functor_traits from outside Eigen. +// this macro is really needed because functor_traits must be specialized after it is declared but before it is used... +#ifdef EIGEN_FUNCTORS_PLUGIN +#include EIGEN_FUNCTORS_PLUGIN +#endif + +} // end namespace internal + +} // end namespace Eigen + +#endif // EIGEN_STL_FUNCTORS_H |