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 | |
48 | |