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1 | // boost/detail/bitmask.hpp ------------------------------------------------// |
2 | ||
3 | // Copyright Beman Dawes 2006 | |
4 | ||
5 | // Distributed under the Boost Software License, Version 1.0 | |
6 | // http://www.boost.org/LICENSE_1_0.txt | |
7 | ||
8 | // Usage: enum foo { a=1, b=2, c=4 }; | |
9 | // BOOST_BITMASK( foo ); | |
10 | // | |
11 | // void f( foo arg ); | |
12 | // ... | |
13 | // f( a | c ); | |
14 | ||
15 | #ifndef BOOST_BITMASK_HPP | |
16 | #define BOOST_BITMASK_HPP | |
17 | ||
18 | #include <boost/cstdint.hpp> | |
19 | ||
20 | #define BOOST_BITMASK(Bitmask) \ | |
21 | \ | |
22 | inline Bitmask operator| (Bitmask x , Bitmask y ) \ | |
23 | { return static_cast<Bitmask>( static_cast<boost::int_least32_t>(x) \ | |
24 | | static_cast<boost::int_least32_t>(y)); } \ | |
25 | \ | |
26 | inline Bitmask operator& (Bitmask x , Bitmask y ) \ | |
27 | { return static_cast<Bitmask>( static_cast<boost::int_least32_t>(x) \ | |
28 | & static_cast<boost::int_least32_t>(y)); } \ | |
29 | \ | |
30 | inline Bitmask operator^ (Bitmask x , Bitmask y ) \ | |
31 | { return static_cast<Bitmask>( static_cast<boost::int_least32_t>(x) \ | |
32 | ^ static_cast<boost::int_least32_t>(y)); } \ | |
33 | \ | |
34 | inline Bitmask operator~ (Bitmask x ) \ | |
35 | { return static_cast<Bitmask>(~static_cast<boost::int_least32_t>(x)); } \ | |
36 | \ | |
37 | inline Bitmask & operator&=(Bitmask & x , Bitmask y) \ | |
38 | { x = x & y ; return x ; } \ | |
39 | \ | |
40 | inline Bitmask & operator|=(Bitmask & x , Bitmask y) \ | |
41 | { x = x | y ; return x ; } \ | |
42 | \ | |
43 | inline Bitmask & operator^=(Bitmask & x , Bitmask y) \ | |
44 | { x = x ^ y ; return x ; } | |
45 | ||
46 | #endif // BOOST_BITMASK_HPP | |
47 |