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ba403e4a7c
boost::uuids::string_generator has operator()(const char*). thus we can avoid allocating std::string, with a consistent 4% speedup
72 lines
2.9 KiB
C++
72 lines
2.9 KiB
C++
/********************************************************************
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* guid.hpp - GncGUID struct definition. *
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* Copyright 2016 Aaron Laws *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License*
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* along with this program; if not, contact: *
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* *
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* Free Software Foundation Voice: +1-617-542-5942 *
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* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
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* Boston, MA 02110-1301, USA gnu@gnu.org *
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* *
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*******************************************************************/
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#ifndef GUID_HPP_HEADER
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#define GUID_HPP_HEADER
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#include <boost/uuid/uuid.hpp>
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#include <stdexcept>
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#include <string>
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#include "guid.h"
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namespace gnc {
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struct guid_syntax_exception : public std::invalid_argument
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{
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guid_syntax_exception () noexcept;
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};
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struct GUID
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{
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private:
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boost::uuids::uuid implementation;
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public:
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GUID (boost::uuids::uuid const &) noexcept;
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GUID (GncGUID const &) noexcept;
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GUID (GUID const &) noexcept = default;
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GUID () noexcept = default;
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GUID & operator = (GUID &&) noexcept;
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operator GncGUID () const noexcept;
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static GUID create_random () noexcept;
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static GUID const & null_guid () noexcept;
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static GUID from_string (const char*);
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static GUID from_string (std::string const& s) { return from_string (s.c_str()); };
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static bool is_valid_guid (const char*);
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static bool is_valid_guid (std::string const &s) { return is_valid_guid (s.c_str()); };
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std::string to_string () const noexcept;
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auto begin () const noexcept -> decltype (implementation.begin ());
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auto end () const noexcept -> decltype (implementation.end ());
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bool operator < (GUID const &) noexcept;
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friend bool operator == (GUID const &, GncGUID const &) noexcept;
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friend bool operator != (GUID const &, GUID const &) noexcept;
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};
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bool operator != (GUID const &, GUID const &) noexcept;
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bool operator == (GUID const &, GncGUID const &) noexcept;
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} // namespace gnc
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bool operator== (const GncGUID&, const GncGUID&);
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#endif
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