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