nl_utils.hxx

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#pragma once
 
#include <string>
 
namespace llmx {
namespace rtaco {

template<typename _Tp>
struct enable_bitmask_operators : std::false_type {};
 
template<typename _Tp>
constexpr bool enable_bitmask_operators_v = enable_bitmask_operators<_Tp>::value;
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E operator|(E lhs, E rhs) {
    using T = std::underlying_type_t<E>;
    return static_cast<E>(static_cast<T>(lhs) | static_cast<T>(rhs));
}
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E operator&(E lhs, E rhs) {
    using T = std::underlying_type_t<E>;
    return static_cast<E>(static_cast<T>(lhs) & static_cast<T>(rhs));
}
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E operator^(E lhs, E rhs) {
    using T = std::underlying_type_t<E>;
    return static_cast<E>(static_cast<T>(lhs) ^ static_cast<T>(rhs));
}
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E operator~(E val) {
    using T = std::underlying_type_t<E>;
    return static_cast<E>(~static_cast<T>(val));
}
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E& operator|=(E& lhs, E rhs) {
    lhs = lhs | rhs;
    return lhs;
}
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E& operator&=(E& lhs, E rhs) {
    lhs = lhs & rhs;
    return lhs;
}
 
template<typename E>
    requires enable_bitmask_operators_v<E>
constexpr E& operator^=(E& lhs, E rhs) {
    lhs = lhs ^ rhs;
    return lhs;
}
 
template<typename E, std::integral U>
    requires enable_bitmask_operators_v<E>
constexpr E operator<<(E lhs, U shift) {
    using T = std::underlying_type_t<E>;
    return static_cast<E>(static_cast<T>(lhs) << shift);
}
 
template<typename E, std::integral U>
    requires enable_bitmask_operators_v<E>
constexpr E operator>>(E lhs, U shift) {
    using T = std::underlying_type_t<E>;
    return static_cast<E>(static_cast<T>(lhs) >> shift);
}
 
} // namespace rtaco
} // namespace llmx