1/*
2Copyright Rene Rivera 2005-2016
3Distributed under the Boost Software License, Version 1.0.
4(See accompanying file LICENSE_1_0.txt or copy at
5http://www.boost.org/LICENSE_1_0.txt)
6*/
7
8#ifndef BOOST_PREDEF_VERSION_NUMBER_H
9#define BOOST_PREDEF_VERSION_NUMBER_H
10
11/* tag::reference[]
12= `BOOST_VERSION_NUMBER`
13
14[source]
15----
16BOOST_VERSION_NUMBER(major,minor,patch)
17----
18
19Defines standard version numbers, with these properties:
20
21* Decimal base whole numbers in the range [0,1000000000).
22 The number range is designed to allow for a (2,2,5) triplet.
23 Which fits within a 32 bit value.
24* The `major` number can be in the [0,99] range.
25* The `minor` number can be in the [0,99] range.
26* The `patch` number can be in the [0,99999] range.
27* Values can be specified in any base. As the defined value
28 is an constant expression.
29* Value can be directly used in both preprocessor and compiler
30 expressions for comparison to other similarly defined values.
31* The implementation enforces the individual ranges for the
32 major, minor, and patch numbers. And values over the ranges
33 are truncated (modulo).
34
35*/ // end::reference[]
36#define BOOST_VERSION_NUMBER(major,minor,patch) \
37 ( (((major)%100)*10000000) + (((minor)%100)*100000) + ((patch)%100000) )
38
39#define BOOST_VERSION_NUMBER_MAX \
40 BOOST_VERSION_NUMBER(99,99,99999)
41
42#define BOOST_VERSION_NUMBER_ZERO \
43 BOOST_VERSION_NUMBER(0,0,0)
44
45#define BOOST_VERSION_NUMBER_MIN \
46 BOOST_VERSION_NUMBER(0,0,1)
47
48#define BOOST_VERSION_NUMBER_AVAILABLE \
49 BOOST_VERSION_NUMBER_MIN
50
51#define BOOST_VERSION_NUMBER_NOT_AVAILABLE \
52 BOOST_VERSION_NUMBER_ZERO
53
54/* tag::reference[]
55[source]
56----
57BOOST_VERSION_NUMBER_MAJOR(N), BOOST_VERSION_NUMBER_MINOR(N), BOOST_VERSION_NUMBER_PATCH(N)
58----
59
60The macros extract the major, minor, and patch portion from a well formed
61version number resulting in a preprocessor expression in the range of
62[0,99] or [0,99999] for the major and minor, or patch numbers
63respectively.
64*/ // end::reference[]
65#define BOOST_VERSION_NUMBER_MAJOR(N) \
66 ( ((N)/10000000)%100 )
67
68#define BOOST_VERSION_NUMBER_MINOR(N) \
69 ( ((N)/100000)%100 )
70
71#define BOOST_VERSION_NUMBER_PATCH(N) \
72 ( (N)%100000 )
73
74#endif
75

source code of boost/libs/predef/include/boost/predef/version_number.h