diff options
Diffstat (limited to 'include/system_error')
| -rw-r--r-- | include/system_error | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/include/system_error b/include/system_error index 134bb3274031..c7e73d4ab82b 100644 --- a/include/system_error +++ b/include/system_error @@ -46,6 +46,12 @@ template <class T> struct is_error_code_enum template <class T> struct is_error_condition_enum : public false_type {}; +template <class _Tp> +constexpr size_t is_error_condition_enum_v = is_error_condition_enum<_Tp>::value; // C++17 + +template <class _Tp> +constexpr size_t is_error_code_enum_v = is_error_code_enum<_Tp>::value; // C++17 + class error_code { public: @@ -213,6 +219,7 @@ bool operator!=(const error_condition& lhs, const error_code& rhs) noexcept; bool operator!=(const error_condition& lhs, const error_condition& rhs) noexcept; template <> struct hash<std::error_code>; +template <> struct hash<std::error_condition>; } // std @@ -236,12 +243,22 @@ template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_error_code_enum : public false_type {}; +#if _LIBCPP_STD_VER > 14 +template <class _Tp> +constexpr size_t is_error_code_enum_v = is_error_code_enum<_Tp>::value; +#endif + // is_error_condition_enum template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_error_condition_enum : public false_type {}; +#if _LIBCPP_STD_VER > 14 +template <class _Tp> +constexpr size_t is_error_condition_enum_v = is_error_condition_enum<_Tp>::value; +#endif + // Some error codes are not present on all platforms, so we provide equivalents // for them: @@ -613,6 +630,17 @@ struct _LIBCPP_TYPE_VIS_ONLY hash<error_code> } }; +template <> +struct _LIBCPP_TYPE_VIS_ONLY hash<error_condition> + : public unary_function<error_condition, size_t> +{ + _LIBCPP_INLINE_VISIBILITY + size_t operator()(const error_condition& __ec) const _NOEXCEPT + { + return static_cast<size_t>(__ec.value()); + } +}; + // system_error class _LIBCPP_TYPE_VIS system_error @@ -635,7 +663,8 @@ private: static string __init(const error_code&, string); }; -_LIBCPP_FUNC_VIS void __throw_system_error(int ev, const char* what_arg); +_LIBCPP_NORETURN _LIBCPP_FUNC_VIS +void __throw_system_error(int ev, const char* what_arg); _LIBCPP_END_NAMESPACE_STD |