ceph/src/boost/boost/hana/version.hpp

   1 /*!
   2 @file
   3 Defines macros for tracking the version of the library.
   4
   5 @copyright Louis Dionne 2013-2017
   6 Distributed under the Boost Software License, Version 1.0.
   7 (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   8  */
   9
  10 #ifndef BOOST_HANA_VERSION_HPP
  11 #define BOOST_HANA_VERSION_HPP
  12
  13 //! @internal
  14 //! Transforms a (version, revision, patchlevel) triple into a number of the
  15 //! form 0xVVRRPPPP to allow comparing versions in a normalized way.
  16 //!
  17 //! See http://sourceforge.net/p/predef/wiki/VersionNormalization.
  18 #define BOOST_HANA_CONFIG_VERSION(version, revision, patch) \
  19     (((version) << 24) + ((revision) << 16) + (patch))
  20
  21 //! @ingroup group-config
  22 //! Macro expanding to the major version of the library, i.e. the `x` in `x.y.z`.
  23 #define BOOST_HANA_MAJOR_VERSION 1
  24
  25 //! @ingroup group-config
  26 //! Macro expanding to the minor version of the library, i.e. the `y` in `x.y.z`.
  27 #define BOOST_HANA_MINOR_VERSION 3
  28
  29 //! @ingroup group-config
  30 //! Macro expanding to the patch level of the library, i.e. the `z` in `x.y.z`.
  31 #define BOOST_HANA_PATCH_VERSION 0
  32
  33 //! @ingroup group-config
  34 //! Macro expanding to the full version of the library, in hexadecimal
  35 //! representation.
  36 //!
  37 //! Specifically, `BOOST_HANA_VERSION` expands to an hexadecimal number of the
  38 //! form 0xVVRRPPPP, where `VV` is the major version of the library, `RR` is
  39 //! the minor version and `PPPP` is the patch level. This allows the version
  40 //! of the library to be compared:
  41 //! @snippet example/version.cpp main
  42 //!
  43 //!
  44 //! @note
  45 //! The major, minor and patch versions of the library are also available
  46 //! individually with the `BOOST_HANA_{MAJOR,MINOR,PATCH}_VERSION` macros.
  47 #define BOOST_HANA_VERSION                                                  \
  48     BOOST_HANA_CONFIG_VERSION(BOOST_HANA_MAJOR_VERSION,                     \
  49                               BOOST_HANA_MINOR_VERSION,                     \
  50                               BOOST_HANA_PATCH_VERSION)                     \
  51 /**/
  52
  53 #endif // !BOOST_HANA_VERSION_HPP