#ifndef _LIBCPP_SYSTEM_ERROR
#define _LIBCPP_SYSTEM_ERROR
#include <__config>
#include <cerrno>
#include <type_traits>
#include <stdexcept>
#include <__functional_base>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp>
struct _LIBCPP_VISIBLE is_error_code_enum
: public false_type {};
template <class _Tp>
struct _LIBCPP_VISIBLE is_error_condition_enum
: public false_type {};
_LIBCPP_DECLARE_STRONG_ENUM(errc)
{
address_family_not_supported = EAFNOSUPPORT,
address_in_use = EADDRINUSE,
address_not_available = EADDRNOTAVAIL,
already_connected = EISCONN,
argument_list_too_long = E2BIG,
argument_out_of_domain = EDOM,
bad_address = EFAULT,
bad_file_descriptor = EBADF,
bad_message = EBADMSG,
broken_pipe = EPIPE,
connection_aborted = ECONNABORTED,
connection_already_in_progress = EALREADY,
connection_refused = ECONNREFUSED,
connection_reset = ECONNRESET,
cross_device_link = EXDEV,
destination_address_required = EDESTADDRREQ,
device_or_resource_busy = EBUSY,
directory_not_empty = ENOTEMPTY,
executable_format_error = ENOEXEC,
file_exists = EEXIST,
file_too_large = EFBIG,
filename_too_long = ENAMETOOLONG,
function_not_supported = ENOSYS,
host_unreachable = EHOSTUNREACH,
identifier_removed = EIDRM,
illegal_byte_sequence = EILSEQ,
inappropriate_io_control_operation = ENOTTY,
interrupted = EINTR,
invalid_argument = EINVAL,
invalid_seek = ESPIPE,
io_error = EIO,
is_a_directory = EISDIR,
message_size = EMSGSIZE,
network_down = ENETDOWN,
network_reset = ENETRESET,
network_unreachable = ENETUNREACH,
no_buffer_space = ENOBUFS,
no_child_process = ECHILD,
no_link = ENOLINK,
no_lock_available = ENOLCK,
#ifdef ENODATA
no_message_available = ENODATA,
#else
no_message_available = ENOMSG,
#endif
no_message = ENOMSG,
no_protocol_option = ENOPROTOOPT,
no_space_on_device = ENOSPC,
#ifdef ENOSR
no_stream_resources = ENOSR,
#else
no_stream_resources = ENOMEM,
#endif
no_such_device_or_address = ENXIO,
no_such_device = ENODEV,
no_such_file_or_directory = ENOENT,
no_such_process = ESRCH,
not_a_directory = ENOTDIR,
not_a_socket = ENOTSOCK,
#ifdef ENOSTR
not_a_stream = ENOSTR,
#else
not_a_stream = EINVAL,
#endif
not_connected = ENOTCONN,
not_enough_memory = ENOMEM,
not_supported = ENOTSUP,
operation_canceled = ECANCELED,
operation_in_progress = EINPROGRESS,
operation_not_permitted = EPERM,
operation_not_supported = EOPNOTSUPP,
operation_would_block = EWOULDBLOCK,
owner_dead = EOWNERDEAD,
permission_denied = EACCES,
protocol_error = EPROTO,
protocol_not_supported = EPROTONOSUPPORT,
read_only_file_system = EROFS,
resource_deadlock_would_occur = EDEADLK,
resource_unavailable_try_again = EAGAIN,
result_out_of_range = ERANGE,
state_not_recoverable = ENOTRECOVERABLE,
#ifdef ETIME
stream_timeout = ETIME,
#else
stream_timeout = ETIMEDOUT,
#endif
text_file_busy = ETXTBSY,
timed_out = ETIMEDOUT,
too_many_files_open_in_system = ENFILE,
too_many_files_open = EMFILE,
too_many_links = EMLINK,
too_many_symbolic_link_levels = ELOOP,
value_too_large = EOVERFLOW,
wrong_protocol_type = EPROTOTYPE
};
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(errc)
template <>
struct _LIBCPP_VISIBLE is_error_condition_enum<errc>
: true_type { };
#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
template <>
struct _LIBCPP_VISIBLE is_error_condition_enum<errc::_>
: true_type { };
#endif
class error_condition;
class error_code;
class __do_message;
class _LIBCPP_VISIBLE error_category
{
public:
virtual ~error_category() _NOEXCEPT;
private:
error_category() _NOEXCEPT;
error_category(const error_category&); error_category& operator=(const error_category&);
public:
virtual const char* name() const _NOEXCEPT = 0;
virtual error_condition default_error_condition(int __ev) const _NOEXCEPT;
virtual bool equivalent(int __code, const error_condition& __condition) const _NOEXCEPT;
virtual bool equivalent(const error_code& __code, int __condition) const _NOEXCEPT;
virtual string message(int __ev) const = 0;
_LIBCPP_ALWAYS_INLINE
bool operator==(const error_category& __rhs) const _NOEXCEPT {return this == &__rhs;}
_LIBCPP_ALWAYS_INLINE
bool operator!=(const error_category& __rhs) const _NOEXCEPT {return !(*this == __rhs);}
_LIBCPP_ALWAYS_INLINE
bool operator< (const error_category& __rhs) const _NOEXCEPT {return this < &__rhs;}
friend class __do_message;
};
class _LIBCPP_HIDDEN __do_message
: public error_category
{
public:
virtual string message(int ev) const;
};
const error_category& generic_category() _NOEXCEPT;
const error_category& system_category() _NOEXCEPT;
class _LIBCPP_VISIBLE error_condition
{
int __val_;
const error_category* __cat_;
public:
_LIBCPP_ALWAYS_INLINE
error_condition() _NOEXCEPT : __val_(0), __cat_(&generic_category()) {}
_LIBCPP_ALWAYS_INLINE
error_condition(int __val, const error_category& __cat) _NOEXCEPT
: __val_(__val), __cat_(&__cat) {}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
error_condition(_Ep __e,
typename enable_if<is_error_condition_enum<_Ep>::value>::type* = 0
) _NOEXCEPT
{*this = make_error_condition(__e);}
_LIBCPP_ALWAYS_INLINE
void assign(int __val, const error_category& __cat) _NOEXCEPT
{
__val_ = __val;
__cat_ = &__cat;
}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
typename enable_if
<
is_error_condition_enum<_Ep>::value,
error_condition&
>::type
operator=(_Ep __e) _NOEXCEPT
{*this = make_error_condition(__e); return *this;}
_LIBCPP_ALWAYS_INLINE
void clear() _NOEXCEPT
{
__val_ = 0;
__cat_ = &generic_category();
}
_LIBCPP_ALWAYS_INLINE
int value() const _NOEXCEPT {return __val_;}
_LIBCPP_ALWAYS_INLINE
const error_category& category() const _NOEXCEPT {return *__cat_;}
string message() const;
_LIBCPP_ALWAYS_INLINE
_LIBCPP_EXPLICIT
operator bool() const _NOEXCEPT {return __val_ != 0;}
};
inline _LIBCPP_INLINE_VISIBILITY
error_condition
make_error_condition(errc __e) _NOEXCEPT
{
return error_condition(static_cast<int>(__e), generic_category());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category() < __y.category()
|| (__x.category() == __y.category() && __x.value() < __y.value());
}
class _LIBCPP_VISIBLE error_code
{
int __val_;
const error_category* __cat_;
public:
_LIBCPP_ALWAYS_INLINE
error_code() _NOEXCEPT : __val_(0), __cat_(&system_category()) {}
_LIBCPP_ALWAYS_INLINE
error_code(int __val, const error_category& __cat) _NOEXCEPT
: __val_(__val), __cat_(&__cat) {}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
error_code(_Ep __e,
typename enable_if<is_error_code_enum<_Ep>::value>::type* = 0
) _NOEXCEPT
{*this = make_error_code(__e);}
_LIBCPP_ALWAYS_INLINE
void assign(int __val, const error_category& __cat) _NOEXCEPT
{
__val_ = __val;
__cat_ = &__cat;
}
template <class _Ep>
_LIBCPP_ALWAYS_INLINE
typename enable_if
<
is_error_code_enum<_Ep>::value,
error_code&
>::type
operator=(_Ep __e) _NOEXCEPT
{*this = make_error_code(__e); return *this;}
_LIBCPP_ALWAYS_INLINE
void clear() _NOEXCEPT
{
__val_ = 0;
__cat_ = &system_category();
}
_LIBCPP_ALWAYS_INLINE
int value() const _NOEXCEPT {return __val_;}
_LIBCPP_ALWAYS_INLINE
const error_category& category() const _NOEXCEPT {return *__cat_;}
_LIBCPP_ALWAYS_INLINE
error_condition default_error_condition() const _NOEXCEPT
{return __cat_->default_error_condition(__val_);}
string message() const;
_LIBCPP_ALWAYS_INLINE
_LIBCPP_EXPLICIT
operator bool() const _NOEXCEPT {return __val_ != 0;}
};
inline _LIBCPP_INLINE_VISIBILITY
error_code
make_error_code(errc __e) _NOEXCEPT
{
return error_code(static_cast<int>(__e), generic_category());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const error_code& __x, const error_code& __y) _NOEXCEPT
{
return __x.category() < __y.category()
|| (__x.category() == __y.category() && __x.value() < __y.value());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_code& __x, const error_code& __y) _NOEXCEPT
{
return __x.category() == __y.category() && __x.value() == __y.value();
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_code& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category().equivalent(__x.value(), __y)
|| __y.category().equivalent(__x, __y.value());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_condition& __x, const error_code& __y) _NOEXCEPT
{
return __y == __x;
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category() == __y.category() && __x.value() == __y.value();
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_code& __x, const error_code& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_code& __x, const error_condition& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_condition& __x, const error_code& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{return !(__x == __y);}
template <>
struct _LIBCPP_VISIBLE hash<error_code>
: public unary_function<error_code, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const error_code& __ec) const _NOEXCEPT
{
return static_cast<size_t>(__ec.value());
}
};
class _LIBCPP_VISIBLE system_error
: public runtime_error
{
error_code __ec_;
public:
system_error(error_code __ec, const string& __what_arg);
system_error(error_code __ec, const char* __what_arg);
system_error(error_code __ec);
system_error(int __ev, const error_category& __ecat, const string& __what_arg);
system_error(int __ev, const error_category& __ecat, const char* __what_arg);
system_error(int __ev, const error_category& __ecat);
~system_error() _NOEXCEPT;
_LIBCPP_ALWAYS_INLINE
const error_code& code() const _NOEXCEPT {return __ec_;}
private:
static string __init(const error_code&, string);
};
void __throw_system_error(int ev, const char* what_arg);
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_SYSTEM_ERROR