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#ifndef flags_hh_INCLUDED
#define flags_hh_INCLUDED
#include <type_traits>
namespace Kakoune
{
template<typename Flags>
struct WithBitOps : std::false_type {};
template<typename Flags>
using UnderlyingType = typename std::underlying_type<Flags>::type;
template<typename Flags>
using EnableIfWithBitOps = typename std::enable_if<WithBitOps<Flags>::value>::type;
template<typename Flags, typename = EnableIfWithBitOps<Flags>>
constexpr Flags operator|(Flags lhs, Flags rhs)
{
return (Flags)((UnderlyingType<Flags>) lhs | (UnderlyingType<Flags>) rhs);
}
template<typename Flags, typename = EnableIfWithBitOps<Flags>>
Flags& operator|=(Flags& lhs, Flags rhs)
{
(UnderlyingType<Flags>&) lhs |= (UnderlyingType<Flags>) rhs;
return lhs;
}
template<typename Flags, typename = EnableIfWithBitOps<Flags>>
constexpr bool operator&(Flags lhs, Flags rhs)
{
return ((UnderlyingType<Flags>) lhs & (UnderlyingType<Flags>) rhs) == (UnderlyingType<Flags>)rhs;
}
template<typename Flags, typename = EnableIfWithBitOps<Flags>>
Flags& operator&=(Flags& lhs, Flags rhs)
{
(UnderlyingType<Flags>&) lhs &= (UnderlyingType<Flags>) rhs;
return lhs;
}
template<typename Flags, typename = EnableIfWithBitOps<Flags>>
constexpr Flags operator~(Flags lhs)
{
return (Flags)(~(UnderlyingType<Flags>)lhs);
}
}
#endif // flags_hh_INCLUDED
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