54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
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/*!
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@file
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Defines macros for tracking the version of the library.
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@copyright Louis Dionne 2013-2016
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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*/
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#ifndef BOOST_HANA_VERSION_HPP
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#define BOOST_HANA_VERSION_HPP
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//! @internal
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//! Transforms a (version, revision, patchlevel) triple into a number of the
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//! form 0xVVRRPPPP to allow comparing versions in a normalized way.
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//!
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//! See http://sourceforge.net/p/predef/wiki/VersionNormalization.
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#define BOOST_HANA_CONFIG_VERSION(version, revision, patch) \
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(((version) << 24) + ((revision) << 16) + (patch))
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//! @ingroup group-config
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//! Macro expanding to the major version of the library, i.e. the `x` in `x.y.z`.
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#define BOOST_HANA_MAJOR_VERSION 1
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//! @ingroup group-config
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//! Macro expanding to the minor version of the library, i.e. the `y` in `x.y.z`.
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#define BOOST_HANA_MINOR_VERSION 0
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//! @ingroup group-config
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//! Macro expanding to the patch level of the library, i.e. the `z` in `x.y.z`.
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#define BOOST_HANA_PATCH_VERSION 2
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//! @ingroup group-config
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//! Macro expanding to the full version of the library, in hexadecimal
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//! representation.
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//!
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//! Specifically, `BOOST_HANA_VERSION` expands to an hexadecimal number of the
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//! form 0xVVRRPPPP, where `VV` is the major version of the library, `RR` is
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//! the minor version and `PPPP` is the patch level. This allows the version
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//! of the library to be compared:
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//! @snippet example/version.cpp main
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//!
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//!
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//! @note
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//! The major, minor and patch versions of the library are also available
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//! individually with the `BOOST_HANA_{MAJOR,MINOR,PATCH}_VERSION` macros.
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#define BOOST_HANA_VERSION \
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BOOST_HANA_CONFIG_VERSION(BOOST_HANA_MAJOR_VERSION, \
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BOOST_HANA_MINOR_VERSION, \
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BOOST_HANA_PATCH_VERSION) \
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/**/
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#endif // !BOOST_HANA_VERSION_HPP
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