56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
/*!
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* \file core/crtp.h
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* \brief
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* A CRTP idiom helper header
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*
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* \copyright Copyright (C) 2020 Christos Choutouridis <christos@choutouridis.net>
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*
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* <dl class=\"section copyright\"><dt>License</dt><dd>
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* The MIT License (MIT)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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* </dd></dl>
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*/
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#ifndef TBX_CORE_CRTP_H_
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#define TBX_CORE_CRTP_H_
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/*!
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* \defgroup crtp CRTP idiom support header
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*
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*/
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//!@{
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namespace tbx {
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//! CRTP support tag type
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struct crtp_tag { };
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//! virtual support tag type
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struct virtual_tag { };
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//! \def CRTP boilerplate lines
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#define _CRTP_IMPL(T) \
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constexpr T& impl() { return *static_cast<T*>(this); } \
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constexpr const T& impl() const { return *static_cast<const T*>(this); }
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}
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//!@}
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#endif /* TBX_CORE_CRTP_H_ */
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