mirror of
https://github.com/pocketpy/pocketpy
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74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
/***************************************************************************
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* Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht *
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* Copyright (c) QuantStack *
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* *
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* Distributed under the terms of the BSD 3-Clause License. *
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* *
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* The full license is in the file LICENSE, distributed with this software. *
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****************************************************************************/
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#ifndef XTL_HIERARCHY_GENERATOR_HPP
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#define XTL_HIERARCHY_GENERATOR_HPP
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#include "xmeta_utils.hpp"
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namespace xtl
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{
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/*********************************
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* scattered hierarchy generator *
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*********************************/
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template <class TL, template <class> class U>
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class xscatter_hierarchy_generator;
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template <template <class> class U, class T, class... Args>
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class xscatter_hierarchy_generator<mpl::vector<T, Args...>, U>
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: public U<T>, public xscatter_hierarchy_generator<mpl::vector<Args...>, U>
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{
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};
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template <template <class> class U>
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class xscatter_hierarchy_generator<mpl::vector<>, U>
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{
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};
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/******************************
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* linear hierarchy generator *
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******************************/
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class default_root {};
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template <class TL, template <class, class> class U, class Root = default_root>
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class xlinear_hierarchy_generator;
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template <template <class, class> class U, class Root, class T0, class... Args>
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class xlinear_hierarchy_generator<mpl::vector<T0, Args...>, U, Root>
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: public U<T0, xlinear_hierarchy_generator<mpl::vector<Args...>, U, Root>>
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{
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public:
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using base_type = U<T0, xlinear_hierarchy_generator<mpl::vector<Args...>, U, Root>>;
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template <class... T>
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inline xlinear_hierarchy_generator(T&&... args)
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: base_type(std::forward<T>(args)...)
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{
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}
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};
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template <template <class, class> class U, class Root>
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class xlinear_hierarchy_generator<mpl::vector<>, U, Root>
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: public Root
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{
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public:
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template <class... T>
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inline xlinear_hierarchy_generator(T&&... args)
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: Root(std::forward<T>(args)...)
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{
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}
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};
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}
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#endif
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