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/*
* This source code is released into the public domain.
*/
module;
#include <string>
#include <system_error>
module nihil.core;
namespace nihil {
struct nihil_error_category final : std::error_category {
[[nodiscard]] auto name() const noexcept -> char const * override;
[[nodiscard]] auto message(int err) const -> std::string override;
};
[[nodiscard]] auto nihil_category() noexcept -> std::error_category &
{
static auto category = nihil_error_category();
return category;
}
auto make_error_condition(errc ec) -> std::error_condition
{
return {static_cast<int>(ec), nihil_category()};
}
auto nihil_error_category::name() const noexcept -> char const *
{
return "nihil";
}
auto nihil_error_category::message(int err) const -> std::string
{
switch (static_cast<errc>(err)) {
case errc::no_error:
return "No error";
case errc::incomplete_command:
return "Incomplete command";
case errc::empty_string:
return "Empty string is not permitted";
case errc::invalid_unit:
return "Invalid unit specifier";
default:
return "Undefined error";
}
}
} // namespace nihil
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