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- /* Proposed SG14 status_code
- (C) 2018-2019 Niall Douglas <http://www.nedproductions.biz/> (5 commits)
- File Created: Feb 2018
- Boost Software License - Version 1.0 - August 17th, 2003
- Permission is hereby granted, free of charge, to any person or organization
- obtaining a copy of the software and accompanying documentation covered by
- this license (the "Software") to use, reproduce, display, distribute,
- execute, and transmit the Software, and to prepare derivative works of the
- Software, and to permit third-parties to whom the Software is furnished to
- do so, all subject to the following:
- The copyright notices in the Software and this entire statement, including
- the above license grant, this restriction and the following disclaimer,
- must be included in all copies of the Software, in whole or in part, and
- all derivative works of the Software, unless such copies or derivative
- works are solely in the form of machine-executable object code generated by
- a source language processor.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
- SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
- FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
- ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- DEALINGS IN THE SOFTWARE.
- */
- #ifndef BOOST_OUTCOME_SYSTEM_ERROR2_STATUS_ERROR_HPP
- #define BOOST_OUTCOME_SYSTEM_ERROR2_STATUS_ERROR_HPP
- #include "status_code.hpp"
- #include <exception> // for std::exception
- BOOST_OUTCOME_SYSTEM_ERROR2_NAMESPACE_BEGIN
- /*! Exception type representing a thrown status_code
- */
- template <class DomainType> class status_error;
- /*! The erased type edition of status_error.
- */
- template <> class status_error<void> : public std::exception
- {
- protected:
- //! Constructs an instance. Not publicly available.
- status_error() = default;
- //! Copy constructor. Not publicly available
- status_error(const status_error &) = default;
- //! Move constructor. Not publicly available
- status_error(status_error &&) = default;
- //! Copy assignment. Not publicly available
- status_error &operator=(const status_error &) = default;
- //! Move assignment. Not publicly available
- status_error &operator=(status_error &&) = default;
- //! Destructor. Not publicly available.
- ~status_error() override = default;
- public:
- //! The type of the status domain
- using domain_type = void;
- //! The type of the status code
- using status_code_type = status_code<void>;
- };
- /*! Exception type representing a thrown status_code
- */
- template <class DomainType> class status_error : public status_error<void>
- {
- status_code<DomainType> _code;
- typename DomainType::string_ref _msgref;
- public:
- //! The type of the status domain
- using domain_type = DomainType;
- //! The type of the status code
- using status_code_type = status_code<DomainType>;
- //! Constructs an instance
- explicit status_error(status_code<DomainType> code)
- : _code(static_cast<status_code<DomainType> &&>(code))
- , _msgref(_code.message())
- {
- }
- //! Return an explanatory string
- virtual const char *what() const noexcept override { return _msgref.c_str(); } // NOLINT
- //! Returns a reference to the code
- const status_code_type &code() const & { return _code; }
- //! Returns a reference to the code
- status_code_type &code() & { return _code; }
- //! Returns a reference to the code
- const status_code_type &&code() const && { return _code; }
- //! Returns a reference to the code
- status_code_type &&code() && { return _code; }
- };
- BOOST_OUTCOME_SYSTEM_ERROR2_NAMESPACE_END
- #endif
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