MessageError.h

#ifndef MESSAGE_ERROR_HPP__
#define MESSAGE_ERROR_HPP__
 
#include <system_error>
 
namespace MessageError {
enum class Code { json_parsing_error = -1001, json_not_an_object = -1002 };
 
std::error_category const &category() noexcept;
} // namespace MessageError
 
namespace std {
template <> struct is_error_code_enum<MessageError::Code> : public true_type {};
 
template <>
struct is_error_condition_enum<MessageError::Code> : public true_type {};
} // namespace std
 
namespace MessageError {
inline std::error_code make_error_code(Code const e) noexcept {
    return {static_cast<int>(e), category()};
}
 
inline std::error_condition make_error_condition(Code const e) noexcept {
    return {static_cast<int>(e), category()};
}
} // namespace MessageError
 
#endif