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#ifndef AL_BYTE_H
#define AL_BYTE_H
#include <type_traits>
namespace al {
/* The "canonical" way to store raw byte data. Like C++17's std::byte, it's not
* treated as a character type and does not work with arithmatic ops. Only
* bitwise ops are allowed.
*/
enum class byte : unsigned char { };
template<typename T, typename std::enable_if<std::is_integral<T>::value,int>::type = 0>
inline constexpr T to_integer(al::byte b) noexcept { return T(b); }
template<typename T, typename std::enable_if<std::is_integral<T>::value,int>::type = 0>
inline constexpr al::byte operator<<(al::byte lhs, T rhs) noexcept
{ return al::byte(to_integer<unsigned int>(lhs) << rhs); }
template<typename T, typename std::enable_if<std::is_integral<T>::value,int>::type = 0>
inline constexpr al::byte operator>>(al::byte lhs, T rhs) noexcept
{ return al::byte(to_integer<unsigned int>(lhs) >> rhs); }
#define AL_DECL_OP(op) \
inline constexpr al::byte operator op (al::byte lhs, al::byte rhs) noexcept \
{ return al::byte(to_integer<unsigned int>(lhs) op to_integer<unsigned int>(rhs)); }
AL_DECL_OP(|)
AL_DECL_OP(&)
AL_DECL_OP(^)
#undef AL_DECL_OP
inline constexpr al::byte operator~(al::byte b) noexcept
{ return al::byte(~to_integer<unsigned int>(b)); }
template<typename T, typename std::enable_if<std::is_integral<T>::value,int>::type = 0>
inline al::byte& operator<<=(al::byte &lhs, T rhs) noexcept
{ lhs = lhs << rhs; return lhs; }
template<typename T, typename std::enable_if<std::is_integral<T>::value,int>::type = 0>
inline al::byte& operator>>=(al::byte &lhs, T rhs) noexcept
{ lhs = lhs >> rhs; return lhs; }
#define AL_DECL_OP(op) \
inline al::byte& operator op##= (al::byte &lhs, al::byte rhs) noexcept \
{ lhs = lhs op rhs; return lhs; }
AL_DECL_OP(|)
AL_DECL_OP(&)
AL_DECL_OP(^)
#undef AL_DECL_OP
} // namespace al
#endif /* AL_BYTE_H */
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