71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/* Proposed SG14 status_code
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(C) 2018-2022 Niall Douglas <http://www.nedproductions.biz/> (5 commits)
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File Created: Feb 2018
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#ifndef BOOST_OUTCOME_SYSTEM_ERROR2_SYSTEM_CODE_HPP
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#define BOOST_OUTCOME_SYSTEM_ERROR2_SYSTEM_CODE_HPP
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#ifndef BOOST_OUTCOME_SYSTEM_ERROR2_NOT_POSIX
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#include "posix_code.hpp"
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#else
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#include "quick_status_code_from_enum.hpp"
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#endif
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#if defined(_WIN32) || defined(BOOST_OUTCOME_STANDARDESE_IS_IN_THE_HOUSE)
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#include "nt_code.hpp"
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#include "win32_code.hpp"
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// NOT "com_code.hpp"
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#endif
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BOOST_OUTCOME_SYSTEM_ERROR2_NAMESPACE_BEGIN
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/*! An erased-mutable status code suitably large for all the system codes
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which can be returned on this system.
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For Windows, these might be:
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- `com_code` (`HRESULT`) [you need to include "com_code.hpp" explicitly for this]
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- `nt_code` (`LONG`)
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- `win32_code` (`DWORD`)
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For POSIX, `posix_code` is possible.
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You are guaranteed that `system_code` can be transported by the compiler
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in exactly two CPU registers.
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*/
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using system_code = status_code<erased<intptr_t>>;
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#ifndef NDEBUG
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static_assert(sizeof(system_code) == 2 * sizeof(void *), "system_code is not exactly two pointers in size!");
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static_assert(traits::is_move_bitcopying<system_code>::value, "system_code is not move bitcopying!");
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#endif
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BOOST_OUTCOME_SYSTEM_ERROR2_NAMESPACE_END
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#endif
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