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#pragma once
#include <system_error>
#include <type_traits>
enum class common_error : int
{
// 0 is reserved for no error, as per expect<T>
kInvalidArgument = 1, //!< A function argument is invalid
kInvalidErrorCode //!< Default `std::error_code` given to `expect<T>`
};
std::error_category const& common_category() noexcept;
inline std::error_code make_error_code(::common_error value) noexcept
{
return std::error_code{int(value), common_category()};
}
namespace std
{
template<>
struct is_error_code_enum<::common_error>
: true_type
{};
}
