104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2010 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_VERSION_HPP
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#define __UTIL_VERSION_HPP
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#include <array>
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#include <string>
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#include <ostream>
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#include <limits>
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namespace util {
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struct version {
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// underlying component value type
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using value_t = unsigned;
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static_assert (std::numeric_limits<value_t>::max () >= 2100'00'00,
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"value_t must be sufficient to store a reasonable future year in YYYYMMDD format");
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/// type of release.
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///
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/// * must be sorted from earliest to latest
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/// * specific values aren't currently guaranteed.
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enum release_t {
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ALPHA,
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BETA,
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GAMMA,
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PRODUCTION
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};
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version ();
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version (unsigned _major);
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version (unsigned _major, unsigned _minor);
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version (unsigned _major, unsigned _minor, unsigned _point);
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version (unsigned _major, unsigned _minor, unsigned _point, unsigned _build);
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explicit version (const std::string& str);
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explicit version (const char *str);
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void sanity (void) const;
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// named component indices
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//
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// * must start from zero and be monotonically increasing
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enum offset_t {
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MAJOR = 0,
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MINOR = 1,
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POINT = 2,
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BUILD = 3
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};
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// fuck you too freebsd
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#ifdef major
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#undef major
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#endif
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#ifdef minor
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#undef minor
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#endif
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unsigned major (void) const;
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unsigned minor (void) const;
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unsigned point (void) const;
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unsigned build (void) const;
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const unsigned* begin (void) const noexcept;
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const unsigned* end (void) const noexcept;
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const unsigned* cbegin (void) const noexcept;
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const unsigned* cend (void) const noexcept;
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const unsigned& operator[] (size_t) const;
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unsigned& operator[] (size_t);
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size_t size;
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std::array<unsigned,4u> components;
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release_t release = PRODUCTION;
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static version parse (const std::string&);
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static version parse (const char*);
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bool operator< (const version& rhs) const noexcept;
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bool operator> (const version& rhs) const noexcept;
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bool operator>= (const version& rhs) const noexcept;
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bool operator<= (const version& rhs) const noexcept;
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bool operator== (const version& rhs) const noexcept;
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};
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std::ostream& operator<< (std::ostream& os, const util::version& rhs);
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}
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#endif // __VERSION_HPP
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