forked from boostorg/predef
Rene Rivera
9fcecba7cc
backward PP compatability. Add BOOST_category_item_AVAILABLE as a defined, or not, symbol for use with "#ifdef" or "#ifndef". Add documentation of macros used for detection and version information. Also replace direct use of BVN(0,0,0) and BVN(0,0,1) with more meaningful macros that are globally defined, and hence consistent.
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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Copyright Rene Rivera 2005
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Copyright Redshift Software, Inc. 2008-2013
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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*/
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#ifndef BOOST_PREDEF_VERSION_NUMBER_H
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#define BOOST_PREDEF_VERSION_NUMBER_H
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/*`
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[heading `BOOST_VERSION_NUMBER`]
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``
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BOOST_VERSION_NUMBER(major,minor,patch)
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``
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Defines standard version numbers, with these properties:
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* Decimal base whole numbers in the range \[0,1000000000).
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The number range is designed to allow for a (2,2,5) triplet.
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Which fits within a 32 bit value.
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* The `major` number can be in the \[0,99\] range.
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* The `minor` number can be in the \[0,99\] range.
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* The `patch` number can be in the \[0,99999\] range.
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* Values can be specified in any base. As the defined value
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is an constant expression.
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* Value can be directly used in both preprocessor and compiler
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expressions for comparison to other similarly defined values.
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* The implementation enforces the individual ranges for the
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major, minor, and patch numbers. And values over the ranges
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are truncated (modulo).
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*/
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#define BOOST_VERSION_NUMBER(major,minor,patch) \
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( (((major)%100)*10000000) + (((minor)%100)*100000) + ((patch)%100000) )
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#define BOOST_VERSION_NUMBER_MAX \
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BOOST_VERSION_NUMBER(99,99,99999)
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#define BOOST_VERSION_NUMBER_ZERO \
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BOOST_VERSION_NUMBER(0,0,0)
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#define BOOST_VERSION_NUMBER_MIN \
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BOOST_VERSION_NUMBER(0,0,1)
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#define BOOST_VERSION_NUMBER_AVAILABLE \
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BOOST_VERSION_NUMBER_MIN
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#define BOOST_VERSION_NUMBER_NOT_AVAILABLE \
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BOOST_VERSION_NUMBER_ZERO
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#endif
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