forked from boostorg/system
Use a switch rather than an array to translate system_category error codes to their corresponding default error conditions. Add translations for the Winsock error codes.
[SVN r39502]
This commit is contained in:
Christopher Kohlhoff
@@ -45,157 +45,6 @@ using namespace boost::system::posix;
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namespace
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{
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struct system_to_posix_t
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{
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int system_value;
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boost::system::posix::posix_errno posix_value;
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};
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const system_to_posix_t system_to_posix[] =
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{
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#ifdef BOOST_POSIX_API
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// POSIX-like O/S -> posix_errno decode table ----------------------------//
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// most common errors first to speed sequential search
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{ ENOENT, no_such_file_or_directory },
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{ EACCES, permission_denied },
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{ EINVAL, invalid_argument },
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// rest are alphabetical for easy maintenance
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{ 0, success },
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{ E2BIG, argument_list_too_long },
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{ EADDRINUSE, address_in_use },
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{ EADDRNOTAVAIL, address_not_available },
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{ EAFNOSUPPORT, address_family_not_supported },
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{ EAGAIN, resource_unavailable_try_again },
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{ EALREADY, connection_already_in_progress },
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{ EBADF, bad_file_descriptor },
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{ EBADMSG, bad_message },
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{ EBUSY, device_or_resource_busy },
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{ ECANCELED, operation_canceled },
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{ ECHILD, no_child_process },
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{ ECONNABORTED, connection_aborted },
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{ ECONNREFUSED, connection_refused },
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{ ECONNRESET, connection_reset },
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{ EDEADLK, resource_deadlock_would_occur },
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{ EDESTADDRREQ, destination_address_required },
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{ EDOM, argument_out_of_domain },
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{ EEXIST, file_exists },
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{ EFAULT, bad_address },
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{ EFBIG, file_too_large },
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{ EHOSTUNREACH, host_unreachable },
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{ EIDRM, identifier_removed },
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{ EILSEQ, illegal_byte_sequence },
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{ EINPROGRESS, operation_in_progress },
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{ EINTR, interrupted },
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{ EIO, io_error },
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{ EISCONN, already_connected },
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{ EISDIR, is_a_directory },
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{ ELOOP, too_many_synbolic_link_levels },
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{ EMFILE, too_many_files_open },
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{ EMLINK, too_many_links },
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{ EMSGSIZE, message_size },
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{ ENAMETOOLONG, filename_too_long },
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{ ENETDOWN, network_down },
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{ ENETRESET, network_reset },
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{ ENETUNREACH, network_unreachable },
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{ ENFILE, too_many_files_open_in_system },
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{ ENOBUFS, no_buffer_space },
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{ ENODATA, no_message_available },
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{ ENODEV, no_such_device },
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{ ENOEXEC, executable_format_error },
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{ ENOLCK, no_lock_available },
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{ ENOLINK, no_link },
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{ ENOMEM, not_enough_memory },
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{ ENOMSG, no_message },
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{ ENOPROTOOPT, no_protocol_option },
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{ ENOSPC, no_space_on_device },
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{ ENOSR, no_stream_resources },
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{ ENOSTR, not_a_stream },
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{ ENOSYS, function_not_supported },
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{ ENOTCONN, not_connected },
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{ ENOTDIR, not_a_directory },
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{ ENOTEMPTY, directory_not_empty },
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{ ENOTRECOVERABLE, state_not_recoverable },
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{ ENOTSOCK, not_a_socket },
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{ ENOTSUP, not_supported },
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{ ENOTTY, inappropriate_io_control_operation },
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{ ENXIO, no_such_device_or_address },
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{ EOPNOTSUPP, operation_not_supported },
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{ EOVERFLOW, value_too_large },
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{ EOWNERDEAD, owner_dead },
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{ EPERM, operation_not_permitted },
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{ EPIPE, broken_pipe },
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{ EPROTO, protocol_error },
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{ EPROTONOSUPPORT, protocol_not_supported },
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{ EPROTOTYPE, wrong_protocol_type },
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{ ERANGE, result_out_of_range },
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{ EROFS, read_only_file_system },
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{ ESPIPE, invalid_seek },
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{ ESRCH, no_such_process },
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{ ETIME, stream_timeout },
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{ ETIMEDOUT, timed_out },
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{ ETXTBSY, text_file_busy },
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{ EWOULDBLOCK, operation_would_block },
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{ EXDEV, cross_device_link }
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#else
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// Windows system -> posix_errno decode table ----------------------------//
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// see WinError.h comments for descriptions of errors
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// most common errors first to speed sequential search
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{ ERROR_FILE_NOT_FOUND, no_such_file_or_directory },
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{ ERROR_PATH_NOT_FOUND, no_such_file_or_directory },
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// rest are alphabetical for easy maintenance
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{ 0, success },
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{ ERROR_ACCESS_DENIED, permission_denied },
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{ ERROR_ALREADY_EXISTS, file_exists },
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{ ERROR_BAD_UNIT, no_such_device },
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{ ERROR_BUFFER_OVERFLOW, filename_too_long },
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{ ERROR_BUSY, device_or_resource_busy },
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{ ERROR_BUSY_DRIVE, device_or_resource_busy },
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{ ERROR_CANNOT_MAKE, permission_denied },
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{ ERROR_CANTOPEN, io_error },
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{ ERROR_CANTREAD, io_error },
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{ ERROR_CANTWRITE, io_error },
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{ ERROR_CURRENT_DIRECTORY, permission_denied },
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{ ERROR_DEV_NOT_EXIST, no_such_device },
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{ ERROR_DEVICE_IN_USE, device_or_resource_busy },
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{ ERROR_DIR_NOT_EMPTY, directory_not_empty },
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{ ERROR_DIRECTORY, invalid_argument }, // WinError.h: "The directory name is invalid"
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{ ERROR_DISK_FULL, no_space_on_device },
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{ ERROR_FILE_EXISTS, file_exists },
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{ ERROR_HANDLE_DISK_FULL, no_space_on_device },
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{ ERROR_INVALID_ACCESS, permission_denied },
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{ ERROR_INVALID_DRIVE, no_such_device },
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{ ERROR_INVALID_FUNCTION, function_not_supported },
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{ ERROR_INVALID_HANDLE, invalid_argument },
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{ ERROR_INVALID_NAME, invalid_argument },
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{ ERROR_LOCK_VIOLATION, no_lock_available },
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{ ERROR_LOCKED, no_lock_available },
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{ ERROR_NEGATIVE_SEEK, invalid_argument },
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{ ERROR_NOACCESS, permission_denied },
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{ ERROR_NOT_ENOUGH_MEMORY, not_enough_memory },
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{ ERROR_NOT_READY, resource_unavailable_try_again },
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{ ERROR_NOT_SAME_DEVICE, cross_device_link },
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{ ERROR_OPEN_FAILED, io_error },
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{ ERROR_OPEN_FILES, device_or_resource_busy },
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{ ERROR_OUTOFMEMORY, not_enough_memory },
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{ ERROR_READ_FAULT, io_error },
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{ ERROR_SEEK, io_error },
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{ ERROR_SHARING_VIOLATION, permission_denied },
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{ ERROR_TOO_MANY_OPEN_FILES, too_many_files_open },
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{ ERROR_WRITE_FAULT, io_error },
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{ ERROR_WRITE_PROTECT, permission_denied }
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#endif
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};
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// standard error categories -------------------------------------------//
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class posix_error_category : public error_category
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@@ -209,7 +58,6 @@ namespace
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{
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public:
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const char * name() const;
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posix::posix_errno posix( int ev ) const;
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std::string message( int ev ) const;
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error_condition default_error_condition( int ev ) const;
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};
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@@ -298,25 +146,175 @@ namespace
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return "system";
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}
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posix_errno system_error_category::posix( int ev ) const
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{
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const system_to_posix_t * cur = system_to_posix;
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do
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{
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if ( ev == cur->system_value )
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return cur->posix_value;
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++cur;
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} while ( cur != system_to_posix
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+ sizeof(system_to_posix)/sizeof(system_to_posix_t) );
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return static_cast<posix::posix_errno>(-1);
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}
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error_condition system_error_category::default_error_condition( int ev ) const
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{
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int tmp = posix(ev);
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return tmp >= 0
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? error_condition( tmp, posix_category )
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: error_condition( ev, system_category );
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switch ( ev )
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{
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case 0: return make_error_condition( success );
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# if defined(BOOST_POSIX_API)
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// POSIX-like O/S -> posix_errno decode table ---------------------------//
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case E2BIG: return make_error_condition( argument_list_too_long );
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case EACCES: return make_error_condition( permission_denied );
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case EADDRINUSE: return make_error_condition( address_in_use );
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case EADDRNOTAVAIL: return make_error_condition( address_not_available );
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case EAFNOSUPPORT: return make_error_condition( address_family_not_supported );
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case EAGAIN: return make_error_condition( resource_unavailable_try_again );
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case EALREADY: return make_error_condition( connection_already_in_progress );
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case EBADF: return make_error_condition( bad_file_descriptor );
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case EBADMSG: return make_error_condition( bad_message );
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case EBUSY: return make_error_condition( device_or_resource_busy );
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case ECANCELED: return make_error_condition( operation_canceled );
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case ECHILD: return make_error_condition( no_child_process );
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case ECONNABORTED: return make_error_condition( connection_aborted );
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case ECONNREFUSED: return make_error_condition( connection_refused );
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case ECONNRESET: return make_error_condition( connection_reset );
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case EDEADLK: return make_error_condition( resource_deadlock_would_occur );
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case EDESTADDRREQ: return make_error_condition( destination_address_required );
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case EDOM: return make_error_condition( argument_out_of_domain );
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case EEXIST: return make_error_condition( file_exists );
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case EFAULT: return make_error_condition( bad_address );
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case EFBIG: return make_error_condition( file_too_large );
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case EHOSTUNREACH: return make_error_condition( host_unreachable );
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case EIDRM: return make_error_condition( identifier_removed );
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case EILSEQ: return make_error_condition( illegal_byte_sequence );
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case EINPROGRESS: return make_error_condition( operation_in_progress );
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case EINTR: return make_error_condition( interrupted );
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case EINVAL: return make_error_condition( invalid_argument );
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case EIO: return make_error_condition( io_error );
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case EISCONN: return make_error_condition( already_connected );
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case EISDIR: return make_error_condition( is_a_directory );
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case ELOOP: return make_error_condition( too_many_synbolic_link_levels );
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case EMFILE: return make_error_condition( too_many_files_open );
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case EMLINK: return make_error_condition( too_many_links );
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case EMSGSIZE: return make_error_condition( message_size );
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case ENAMETOOLONG: return make_error_condition( filename_too_long );
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case ENETDOWN: return make_error_condition( network_down );
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case ENETRESET: return make_error_condition( network_reset );
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case ENETUNREACH: return make_error_condition( network_unreachable );
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case ENFILE: return make_error_condition( too_many_files_open_in_system );
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case ENOBUFS: return make_error_condition( no_buffer_space );
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case ENODATA: return make_error_condition( no_message_available );
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case ENODEV: return make_error_condition( no_such_device );
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case ENOENT: return make_error_condition( no_such_file_or_directory );
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case ENOEXEC: return make_error_condition( executable_format_error );
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case ENOLCK: return make_error_condition( no_lock_available );
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case ENOLINK: return make_error_condition( no_link );
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case ENOMEM: return make_error_condition( not_enough_memory );
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case ENOMSG: return make_error_condition( no_message );
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case ENOPROTOOPT: return make_error_condition( no_protocol_option );
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case ENOSPC: return make_error_condition( no_space_on_device );
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case ENOSR: return make_error_condition( no_stream_resources );
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case ENOSTR: return make_error_condition( not_a_stream );
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case ENOSYS: return make_error_condition( function_not_supported );
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case ENOTCONN: return make_error_condition( not_connected );
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case ENOTDIR: return make_error_condition( not_a_directory );
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case ENOTEMPTY: return make_error_condition( directory_not_empty );
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case ENOTRECOVERABLE: return make_error_condition( state_not_recoverable );
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case ENOTSOCK: return make_error_condition( not_a_socket );
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case ENOTSUP: return make_error_condition( not_supported );
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case ENOTTY: return make_error_condition( inappropriate_io_control_operation );
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case ENXIO: return make_error_condition( no_such_device_or_address );
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# if EOPNOTSUPP != ENOTSUP
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case EOPNOTSUPP: return make_error_condition( operation_not_supported );
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# endif // EOPNOTSUPP != ENOTSUP
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case EOVERFLOW: return make_error_condition( value_too_large );
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case EOWNERDEAD: return make_error_condition( owner_dead );
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case EPERM: return make_error_condition( operation_not_permitted );
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case EPIPE: return make_error_condition( broken_pipe );
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case EPROTO: return make_error_condition( protocol_error );
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case EPROTONOSUPPORT: return make_error_condition( protocol_not_supported );
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case EPROTOTYPE: return make_error_condition( wrong_protocol_type );
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case ERANGE: return make_error_condition( result_out_of_range );
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case EROFS: return make_error_condition( read_only_file_system );
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case ESPIPE: return make_error_condition( invalid_seek );
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case ESRCH: return make_error_condition( no_such_process );
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case ETIME: return make_error_condition( stream_timeout );
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case ETIMEDOUT: return make_error_condition( timed_out );
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case ETXTBSY: return make_error_condition( text_file_busy );
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# if EAGAIN != EWOULDBLOCK
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case EWOULDBLOCK: return make_error_condition( operation_would_block );
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# endif // EAGAIN != EWOULDBLOCK
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case EXDEV: return make_error_condition( cross_device_link );
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#else
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// Windows system -> posix_errno decode table ---------------------------//
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// see WinError.h comments for descriptions of errors
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case ERROR_ACCESS_DENIED: return make_error_condition( permission_denied );
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case ERROR_ALREADY_EXISTS: return make_error_condition( file_exists );
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case ERROR_BAD_UNIT: return make_error_condition( no_such_device );
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case ERROR_BUFFER_OVERFLOW: return make_error_condition( filename_too_long );
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case ERROR_BUSY: return make_error_condition( device_or_resource_busy );
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case ERROR_BUSY_DRIVE: return make_error_condition( device_or_resource_busy );
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case ERROR_CANNOT_MAKE: return make_error_condition( permission_denied );
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case ERROR_CANTOPEN: return make_error_condition( io_error );
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case ERROR_CANTREAD: return make_error_condition( io_error );
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case ERROR_CANTWRITE: return make_error_condition( io_error );
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case ERROR_CURRENT_DIRECTORY: return make_error_condition( permission_denied );
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case ERROR_DEV_NOT_EXIST: return make_error_condition( no_such_device );
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case ERROR_DEVICE_IN_USE: return make_error_condition( device_or_resource_busy );
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case ERROR_DIR_NOT_EMPTY: return make_error_condition( directory_not_empty );
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case ERROR_DIRECTORY: return make_error_condition( invalid_argument ); // WinError.h: "The directory name is invalid"
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case ERROR_DISK_FULL: return make_error_condition( no_space_on_device );
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case ERROR_FILE_EXISTS: return make_error_condition( file_exists );
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case ERROR_FILE_NOT_FOUND: return make_error_condition( no_such_file_or_directory );
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case ERROR_HANDLE_DISK_FULL: return make_error_condition( no_space_on_device );
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case ERROR_INVALID_ACCESS: return make_error_condition( permission_denied );
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case ERROR_INVALID_DRIVE: return make_error_condition( no_such_device );
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case ERROR_INVALID_FUNCTION: return make_error_condition( function_not_supported );
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case ERROR_INVALID_HANDLE: return make_error_condition( invalid_argument );
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case ERROR_INVALID_NAME: return make_error_condition( invalid_argument );
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case ERROR_LOCK_VIOLATION: return make_error_condition( no_lock_available );
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case ERROR_LOCKED: return make_error_condition( no_lock_available );
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case ERROR_NEGATIVE_SEEK: return make_error_condition( invalid_argument );
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case ERROR_NOACCESS: return make_error_condition( permission_denied );
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case ERROR_NOT_ENOUGH_MEMORY: return make_error_condition( not_enough_memory );
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case ERROR_NOT_READY: return make_error_condition( resource_unavailable_try_again );
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case ERROR_NOT_SAME_DEVICE: return make_error_condition( cross_device_link );
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case ERROR_OPEN_FAILED: return make_error_condition( io_error );
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case ERROR_OPEN_FILES: return make_error_condition( device_or_resource_busy );
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case ERROR_OPERATION_ABORTED: return make_error_condition( operation_canceled );
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case ERROR_OUTOFMEMORY: return make_error_condition( not_enough_memory );
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case ERROR_PATH_NOT_FOUND: return make_error_condition( no_such_file_or_directory );
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case ERROR_READ_FAULT: return make_error_condition( io_error );
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case ERROR_RETRY: return make_error_condition( resource_unavailable_try_again );
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case ERROR_SEEK: return make_error_condition( io_error );
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case ERROR_SHARING_VIOLATION: return make_error_condition( permission_denied );
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case ERROR_TOO_MANY_OPEN_FILES: return make_error_condition( too_many_files_open );
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case ERROR_WRITE_FAULT: return make_error_condition( io_error );
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case ERROR_WRITE_PROTECT: return make_error_condition( permission_denied );
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case WSAEACCES: return make_error_condition( permission_denied );
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case WSAEADDRINUSE: return make_error_condition( address_in_use );
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case WSAEADDRNOTAVAIL: return make_error_condition( address_not_available );
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case WSAEAFNOSUPPORT: return make_error_condition( address_family_not_supported );
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case WSAEALREADY: return make_error_condition( connection_already_in_progress );
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case WSAEBADF: return make_error_condition( bad_file_descriptor );
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case WSAECONNABORTED: return make_error_condition( connection_aborted );
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case WSAECONNREFUSED: return make_error_condition( connection_refused );
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case WSAECONNRESET: return make_error_condition( connection_reset );
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case WSAEDESTADDRREQ: return make_error_condition( destination_address_required );
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case WSAEFAULT: return make_error_condition( bad_address );
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case WSAEHOSTUNREACH: return make_error_condition( host_unreachable );
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case WSAEINPROGRESS: return make_error_condition( operation_in_progress );
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case WSAEINTR: return make_error_condition( interrupted );
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case WSAEINVAL: return make_error_condition( invalid_argument );
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case WSAEISCONN: return make_error_condition( already_connected );
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case WSAEMFILE: return make_error_condition( too_many_files_open );
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case WSAEMSGSIZE: return make_error_condition( message_size );
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case WSAENAMETOOLONG: return make_error_condition( filename_too_long );
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case WSAENETDOWN: return make_error_condition( network_down );
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case WSAENETRESET: return make_error_condition( network_reset );
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case WSAENETUNREACH: return make_error_condition( network_unreachable );
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case WSAENOBUFS: return make_error_condition( no_buffer_space );
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case WSAENOPROTOOPT: return make_error_condition( no_protocol_option );
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case WSAENOTCONN: return make_error_condition( not_connected );
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case WSAENOTSOCK: return make_error_condition( not_a_socket );
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case WSAEOPNOTSUPP: return make_error_condition( operation_not_supported );
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case WSAEPROTONOSUPPORT: return make_error_condition( protocol_not_supported );
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case WSAEPROTOTYPE: return make_error_condition( wrong_protocol_type );
|
||||
case WSAETIMEDOUT: return make_error_condition( timed_out );
|
||||
case WSAEWOULDBLOCK: return make_error_condition( operation_would_block );
|
||||
#endif
|
||||
default: return error_condition( ev, system_category );
|
||||
}
|
||||
}
|
||||
|
||||
# if !defined( BOOST_WINDOWS_API )
|
||||
|
||||
@@ -148,33 +148,40 @@ int test_main( int, char ** )
|
||||
std::cout << "Windows tests...\n";
|
||||
// these tests probe the Windows posix decoder
|
||||
// test the first entry in the decoder table:
|
||||
ec = error_code( ERROR_FILE_NOT_FOUND, system_category );
|
||||
BOOST_CHECK( ec.value() == ERROR_FILE_NOT_FOUND );
|
||||
BOOST_CHECK( ec == posix::no_such_file_or_directory );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::no_such_file_or_directory );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test the second entry in the decoder table:
|
||||
ec = error_code( ERROR_PATH_NOT_FOUND, system_category );
|
||||
BOOST_CHECK( ec.value() == ERROR_PATH_NOT_FOUND );
|
||||
BOOST_CHECK( ec == posix::no_such_file_or_directory );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::no_such_file_or_directory );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test the third entry in the decoder table:
|
||||
ec = error_code( ERROR_ACCESS_DENIED, system_category );
|
||||
BOOST_CHECK( ec.value() == ERROR_ACCESS_DENIED );
|
||||
BOOST_CHECK( ec == posix::permission_denied );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::permission_denied );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test the last regular entry in the decoder table:
|
||||
// test the second entry in the decoder table:
|
||||
ec = error_code( ERROR_ALREADY_EXISTS, system_category );
|
||||
BOOST_CHECK( ec.value() == ERROR_ALREADY_EXISTS );
|
||||
BOOST_CHECK( ec == posix::file_exists );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::file_exists );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test the third entry in the decoder table:
|
||||
ec = error_code( ERROR_BAD_UNIT, system_category );
|
||||
BOOST_CHECK( ec.value() == ERROR_BAD_UNIT );
|
||||
BOOST_CHECK( ec == posix::no_such_device );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::no_such_device );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test the last non-Winsock entry in the decoder table:
|
||||
ec = error_code( ERROR_WRITE_PROTECT, system_category );
|
||||
BOOST_CHECK( ec.value() == ERROR_WRITE_PROTECT );
|
||||
BOOST_CHECK( ec == posix::permission_denied );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::permission_denied );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test the last Winsock entry in the decoder table:
|
||||
ec = error_code( WSAEWOULDBLOCK, system_category );
|
||||
BOOST_CHECK( ec.value() == WSAEWOULDBLOCK );
|
||||
BOOST_CHECK( ec == posix::operation_would_block );
|
||||
BOOST_CHECK( ec.default_error_condition().value() == posix::operation_would_block );
|
||||
BOOST_CHECK( ec.default_error_condition().category() == posix_category );
|
||||
|
||||
// test not-in-table condition:
|
||||
ec = error_code( 1234567890, system_category );
|
||||
BOOST_CHECK( ec.value() == 1234567890 );
|
||||
|
||||
Reference in New Issue
Block a user