std::errc

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std::errc
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Defined in header <system_error>
enum class errc;
 (since C++11)

The scoped enumeration std::errc defines the values of portable error conditions that correspond to the POSIX error codes.

Contents

[edit] Member constants

Constant Explanation
address_family_not_supported error condition corresponding to POSIX code EAFNOSUPPORT
address_in_use error condition corresponding to POSIX code EADDRINUSE
address_not_available error condition corresponding to POSIX code EADDRNOTAVAIL
already_connected error condition corresponding to POSIX code EISCONN
argument_list_too_long error condition corresponding to POSIX code E2BIG
argument_out_of_domain error condition corresponding to POSIX code EDOM
bad_address error condition corresponding to POSIX code EFAULT
bad_file_descriptor error condition corresponding to POSIX code EBADF
bad_message error condition corresponding to POSIX code EBADMSG
broken_pipe error condition corresponding to POSIX code EPIPE
connection_aborted error condition corresponding to POSIX code ECONNABORTED
connection_already_in_progress error condition corresponding to POSIX code EALREADY
connection_refused error condition corresponding to POSIX code ECONNREFUSED
connection_reset error condition corresponding to POSIX code ECONNRESET
cross_device_link error condition corresponding to POSIX code EXDEV
destination_address_required error condition corresponding to POSIX code EDESTADDRREQ
device_or_resource_busy error condition corresponding to POSIX code EBUSY
directory_not_empty error condition corresponding to POSIX code ENOTEMPTY
executable_format_error error condition corresponding to POSIX code ENOEXEC
file_exists error condition corresponding to POSIX code EEXIST
file_too_large error condition corresponding to POSIX code EFBIG
filename_too_long error condition corresponding to POSIX code ENAMETOOLONG
function_not_supported error condition corresponding to POSIX code ENOSYS
host_unreachable error condition corresponding to POSIX code EHOSTUNREACH
identifier_removed error condition corresponding to POSIX code EIDRM
illegal_byte_sequence error condition corresponding to POSIX code EILSEQ
inappropriate_io_control_operation error condition corresponding to POSIX code ENOTTY
interrupted error condition corresponding to POSIX code EINTR
invalid_argument error condition corresponding to POSIX code EINVAL
invalid_seek error condition corresponding to POSIX code ESPIPE
io_error error condition corresponding to POSIX code EIO
is_a_directory error condition corresponding to POSIX code EISDIR
message_size error condition corresponding to POSIX code EMSGSIZE
network_down error condition corresponding to POSIX code ENETDOWN
network_reset error condition corresponding to POSIX code ENETRESET
network_unreachable error condition corresponding to POSIX code ENETUNREACH
no_buffer_space error condition corresponding to POSIX code ENOBUFS
no_child_process error condition corresponding to POSIX code ECHILD
no_link error condition corresponding to POSIX code ENOLINK
no_lock_available error condition corresponding to POSIX code ENOLCK
no_message_available error condition corresponding to POSIX code ENODATA
no_message error condition corresponding to POSIX code ENOMSG
no_protocol_option error condition corresponding to POSIX code ENOPROTOOPT
no_space_on_device error condition corresponding to POSIX code ENOSPC
no_stream_resources error condition corresponding to POSIX code ENOSR
no_such_device_or_address error condition corresponding to POSIX code ENXIO
no_such_device error condition corresponding to POSIX code ENODEV
no_such_file_or_directory error condition corresponding to POSIX code ENOENT
no_such_process error condition corresponding to POSIX code ESRCH
not_a_directory error condition corresponding to POSIX code ENOTDIR
not_a_socket error condition corresponding to POSIX code ENOTSOCK
not_a_stream error condition corresponding to POSIX code ENOSTR
not_connected error condition corresponding to POSIX code ENOTCONN
not_enough_memory error condition corresponding to POSIX code ENOMEM
not_supported error condition corresponding to POSIX code ENOTSUP
operation_canceled error condition corresponding to POSIX code ECANCELED
operation_in_progress error condition corresponding to POSIX code EINPROGRESS
operation_not_permitted error condition corresponding to POSIX code EPERM
operation_not_supported error condition corresponding to POSIX code EOPNOTSUPP
operation_would_block error condition corresponding to POSIX code EWOULDBLOCK
owner_dead error condition corresponding to POSIX code EOWNERDEAD
permission_denied error condition corresponding to POSIX code EACCES
protocol_error error condition corresponding to POSIX code EPROTO
protocol_not_supported error condition corresponding to POSIX code EPROTONOSUPPORT
read_only_file_system error condition corresponding to POSIX code EROFS
resource_deadlock_would_occur error condition corresponding to POSIX code EDEADLK
resource_unavailable_try_again error condition corresponding to POSIX code EAGAIN
result_out_of_range error condition corresponding to POSIX code ERANGE
state_not_recoverable error condition corresponding to POSIX code ENOTRECOVERABLE
stream_timeout error condition corresponding to POSIX code ETIME
text_file_busy error condition corresponding to POSIX code ETXTBSY
timed_out error condition corresponding to POSIX code ETIMEDOUT
too_many_files_open_in_system error condition corresponding to POSIX code ENFILE
too_many_files_open error condition corresponding to POSIX code EMFILE
too_many_links error condition corresponding to POSIX code EMLINK
too_many_symbolic_link_levels error condition corresponding to POSIX code ELOOP
value_too_large error condition corresponding to POSIX code EOVERFLOW
wrong_protocol_type error condition corresponding to POSIX code EPROTOTYPE

[edit] Non-member functions

(C++11)
 constructs an std::errc error code
(function)
(C++11)
 constructs an std::errc error condition
(function)

[edit] Helper classes

(C++11)
 extends the type trait std::is_error_condition_enum to identify the the std::errc values as error conditions
(function template)

[edit] Example

Run this code
#include <iostream>
#include <system_error>
#include <thread>
int main()
{
    try {
        std::thread().detach(); // detaching a not-a-thread
    } catch (const std::system_error& e) {
        std::cout << "Caught a system_error\n";
        if(e.code() == std::errc::invalid_argument)
            std::cout << "The error condition is std::errc::invalid_argument\n";
        std::cout << "the error description is " << e.what() << '\n';
    }
}

Output: 

Caught a system_error
The error condition is std::errc::invalid_argument
the error description is Invalid argument

[edit] See also

(C++11)
 holds a platform-dependent error code
(class)
(C++11)
 holds a portable error code
(class)
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