7336815f6f
* acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Add EBADMSG for darwin. * configure: Regenerate. * include/std/system_error: Guard. * testsuite/19_diagnostics/headers/system_error/ types_std_c++0x.cc: Same. * testsuite/19_diagnostics/error_category/cons/copy_neg.cc: Adjust line numbers. From-SVN: r128154
269 lines
7.5 KiB
C++
269 lines
7.5 KiB
C++
// <system_error> -*- C++ -*-
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// Copyright (C) 2007 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING. If not, write to
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// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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// Boston, MA 02110-1301, USA.
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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/** @file include/system_error
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* This is a Standard C++ Library header.
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*/
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#ifndef _GLIBCXX_SYSTEM_ERROR
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#define _GLIBCXX_SYSTEM_ERROR 1
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#pragma GCC system_header
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#ifndef __GXX_EXPERIMENTAL_CXX0X__
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# include <c++0x_warning.h>
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#endif
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#include <bits/c++config.h>
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#include <cerrno>
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#include <iosfwd>
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#include <stdexcept>
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_GLIBCXX_BEGIN_NAMESPACE(std)
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class system_error;
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class error_code;
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class error_category;
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extern const error_category& system_category;
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enum posix_errno
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{
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address_family_not_supported = EAFNOSUPPORT,
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address_in_use = EADDRINUSE,
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address_not_available = EADDRNOTAVAIL,
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already_connected = EISCONN,
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argument_list_too_long = E2BIG,
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argument_out_of_domain = EDOM,
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bad_address = EFAULT,
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bad_file_descriptor = EBADF,
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#ifdef _GLIBCXX_HAVE_EBADMSG
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bad_message = EBADMSG,
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#endif
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broken_pipe = EPIPE,
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connection_aborted = ECONNABORTED,
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connection_already_in_progress = EALREADY,
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connection_refused = ECONNREFUSED,
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connection_reset = ECONNRESET,
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cross_device_link = EXDEV,
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destination_address_required = EDESTADDRREQ,
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device_or_resource_busy = EBUSY,
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directory_not_empty = ENOTEMPTY,
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executable_format_error = ENOEXEC,
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file_exists = EEXIST,
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file_too_large = EFBIG,
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filename_too_long = ENAMETOOLONG,
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function_not_supported = ENOSYS,
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host_unreachable = EHOSTUNREACH,
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identifier_removed = EIDRM,
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illegal_byte_sequence = EILSEQ,
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inappropriate_io_control_operation = ENOTTY,
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interrupted = EINTR,
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invalid_argument = EINVAL,
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invalid_seek = ESPIPE,
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io_error = EIO,
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is_a_directory = EISDIR,
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message_size = EMSGSIZE,
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network_down = ENETDOWN,
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network_reset = ENETRESET,
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network_unreachable = ENETUNREACH,
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no_buffer_space = ENOBUFS,
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no_child_process = ECHILD,
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#ifdef _GLIBCXX_HAVE_ENOLINK
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no_link = ENOLINK,
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#endif
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no_lock_available = ENOLCK,
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#ifdef _GLIBCXX_HAVE_ENODATA
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no_message_available = ENODATA,
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#endif
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no_message = ENOMSG,
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no_protocol_option = ENOPROTOOPT,
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no_space_on_device = ENOSPC,
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#ifdef _GLIBCXX_HAVE_ENOSR
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no_stream_resources = ENOSR,
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#endif
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no_such_device_or_address = ENXIO,
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no_such_device = ENODEV,
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no_such_file_or_directory = ENOENT,
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no_such_process = ESRCH,
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not_a_directory = ENOTDIR,
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not_a_socket = ENOTSOCK,
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#ifdef _GLIBCXX_HAVE_ENOSTR
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not_a_stream = ENOSTR,
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#endif
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not_connected = ENOTCONN,
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not_enough_memory = ENOMEM,
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not_supported = ENOTSUP,
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operation_canceled = ECANCELED,
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operation_in_progress = EINPROGRESS,
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operation_not_permitted = EPERM,
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operation_not_supported = EOPNOTSUPP,
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operation_would_block = EWOULDBLOCK,
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#ifdef _GLIBCXX_HAVE_EOWNERDEAD
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owner_dead = EOWNERDEAD,
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#endif
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permission_denied = EACCES,
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#ifdef _GLIBCXX_HAVE_EPROTO
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protocol_error = EPROTO,
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#endif
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protocol_not_supported = EPROTONOSUPPORT,
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read_only_file_system = EROFS,
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resource_deadlock_would_occur = EDEADLK,
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resource_unavailable_try_again = EAGAIN,
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result_out_of_range = ERANGE,
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#ifdef _GLIBCXX_HAVE_ENOTRECOVERABLE
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state_not_recoverable = ENOTRECOVERABLE,
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#endif
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#ifdef _GLIBCXX_HAVE_ETIME
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stream_timeout = ETIME,
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#endif
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text_file_busy = ETXTBSY,
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timed_out = ETIMEDOUT,
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too_many_files_open_in_system = ENFILE,
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too_many_files_open = EMFILE,
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too_many_links = EMLINK,
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too_many_synbolic_link_levels = ELOOP,
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value_too_large = EOVERFLOW,
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wrong_protocol_type = EPROTOTYPE,
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no_posix_equivalent = 1L << 16
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};
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struct error_category
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{
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error_category() { }
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bool
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operator==(const error_category& __other) const
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{ return this == &__other; }
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bool
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operator!=(const error_category& __other) const
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{ return this != &__other; }
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virtual posix_errno
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posix(int __v) const = 0;
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virtual const string&
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name() const = 0;
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private:
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error_category(const error_category&);
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error_category&
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operator=(const error_category&);
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};
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struct error_code
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{
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error_code() throw()
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: _M_value(0), _M_cat(&system_category) { }
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error_code(int __v, const error_category& __cat) throw()
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: _M_value(__v), _M_cat(&__cat) { }
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error_code(posix_errno __v)
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: _M_value(__v), _M_cat(&system_category) { }
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void
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assign(int __v, const error_category& __cat) throw()
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{
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_M_value = __v;
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_M_cat = &__cat;
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}
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void
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clear() throw()
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{
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_M_value = 0;
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_M_cat = &system_category;
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}
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int
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value() const throw() { return _M_value; }
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const error_category&
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category() const { return *_M_cat; }
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posix_errno
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posix() const throw() { return this->category().posix(_M_value); }
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// Safe bool idiom.
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// explicit operator bool() const throw()
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// { return _M_value != 0; }
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typedef void (*__bool_type)();
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static void __not_bool_type() { }
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operator __bool_type() const throw()
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{ return _M_value != 0 ? &__not_bool_type : false; }
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bool operator==(const error_code& __other) const
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{ return value() == __other.value() && category() == __other.category(); }
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bool operator!=(const error_code& __other) const
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{ return !(this == &__other); }
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private:
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int _M_value;
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const error_category* _M_cat;
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};
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class system_error : public std::runtime_error
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{
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private:
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error_code _M_code;
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public:
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system_error(const string& __what, error_code __ec = error_code())
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: runtime_error(__what), _M_code(__ec) { }
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system_error(const string& __what, int __v, const error_category& __ecat)
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: runtime_error(__what), _M_code(error_code(__v, __ecat)) { }
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virtual ~system_error() throw();
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const error_code&
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code() const throw() { return _M_code; }
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};
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_GLIBCXX_END_NAMESPACE
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#endif
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