error.hpp File Reference

Error type and Result<T> (spec §26.3/§26.4, §32). More...

#include <expected>
#include <string_view>
#include "moddef/err.h"

Go to the source code of this file.

Namespaces
namespace	moddef

Typedefs
template<class T >
using	moddef::Result = std::expected< T, Error >
	The canonical result type across the API; Result<void> for actions.

Enumerations
enum class	moddef::Error : int {   moddef::Ok = MD_OK , moddef::Transport = MD_ERR_TRANSPORT , moddef::Parse = MD_ERR_PARSE , moddef::NotFound = MD_ERR_NOT_FOUND ,   moddef::ShortRead = MD_ERR_SHORT_READ , moddef::Buffer = MD_ERR_BUFFER , moddef::UnresolvedRef = MD_ERR_UNRESOLVED_REF , moddef::ZeroScaleDenominator = MD_ERR_ZERO_SCALE_DEN ,   moddef::ComposedBase = MD_ERR_COMPOSED_BASE , moddef::NotWritable = MD_ERR_NOT_WRITABLE , moddef::WrongType = MD_ERR_WRONG_TYPE , moddef::Unsupported = MD_ERR_UNSUPPORTED ,   moddef::ConstraintMin = MD_ERR_CONSTRAINT_MIN , moddef::ConstraintMax = MD_ERR_CONSTRAINT_MAX , moddef::ConstraintStep = MD_ERR_CONSTRAINT_STEP , moddef::ConstraintAllowed = MD_ERR_CONSTRAINT_ALLOWED ,   moddef::Discovery = MD_ERR_DISCOVERY , moddef::Unavailable = MD_ERR_UNAVAILABLE }
	Strongly typed mirror of md_err_t (same underlying values, so casts are free in both directions). More...

Functions
Error	moddef::from_c (md_err_t e) noexcept
md_err_t	moddef::to_c (Error e) noexcept
std::string_view	moddef::to_string (Error e) noexcept
template<class T >
Result< T >	moddef::ok_or (md_err_t e, T value)
Result< void >	moddef::check (md_err_t e)

Detailed Description

Error type and Result<T> (spec §26.3/§26.4, §32).

Thin, exception-free wrappers over the C core's md_err_t — embedded C++ commonly builds with -fno-exceptions, so the API returns std::expected instead of throwing.