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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
87 lines
3.8 KiB
C++
87 lines
3.8 KiB
C++
//===- llvm/Support/Errc.h - Defines the llvm::errc enum --------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// While std::error_code works OK on all platforms we use, there are some
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// some problems with std::errc that can be avoided by using our own
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// enumeration:
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//
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// * std::errc is a namespace in some implementations. That meas that ADL
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// doesn't work and it is sometimes necessary to write std::make_error_code
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// or in templates:
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// using std::make_error_code;
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// make_error_code(...);
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//
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// with this enum it is safe to always just use make_error_code.
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//
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// * Some implementations define fewer names than others. This header has
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// the intersection of all the ones we support.
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//
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// * std::errc is just marked with is_error_condition_enum. This means that
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// common patters like AnErrorCode == errc::no_such_file_or_directory take
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// 4 virtual calls instead of two comparisons.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_ERRC_H
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#define LLVM_SUPPORT_ERRC_H
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#include <system_error>
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namespace llvm {
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enum class errc {
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argument_list_too_long = int(std::errc::argument_list_too_long),
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argument_out_of_domain = int(std::errc::argument_out_of_domain),
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bad_address = int(std::errc::bad_address),
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bad_file_descriptor = int(std::errc::bad_file_descriptor),
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broken_pipe = int(std::errc::broken_pipe),
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device_or_resource_busy = int(std::errc::device_or_resource_busy),
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directory_not_empty = int(std::errc::directory_not_empty),
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executable_format_error = int(std::errc::executable_format_error),
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file_exists = int(std::errc::file_exists),
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file_too_large = int(std::errc::file_too_large),
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filename_too_long = int(std::errc::filename_too_long),
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function_not_supported = int(std::errc::function_not_supported),
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illegal_byte_sequence = int(std::errc::illegal_byte_sequence),
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inappropriate_io_control_operation =
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int(std::errc::inappropriate_io_control_operation),
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interrupted = int(std::errc::interrupted),
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invalid_argument = int(std::errc::invalid_argument),
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invalid_seek = int(std::errc::invalid_seek),
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io_error = int(std::errc::io_error),
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is_a_directory = int(std::errc::is_a_directory),
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no_child_process = int(std::errc::no_child_process),
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no_lock_available = int(std::errc::no_lock_available),
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no_space_on_device = int(std::errc::no_space_on_device),
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no_such_device_or_address = int(std::errc::no_such_device_or_address),
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no_such_device = int(std::errc::no_such_device),
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no_such_file_or_directory = int(std::errc::no_such_file_or_directory),
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no_such_process = int(std::errc::no_such_process),
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not_a_directory = int(std::errc::not_a_directory),
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not_enough_memory = int(std::errc::not_enough_memory),
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not_supported = int(std::errc::not_supported),
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operation_not_permitted = int(std::errc::operation_not_permitted),
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permission_denied = int(std::errc::permission_denied),
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read_only_file_system = int(std::errc::read_only_file_system),
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resource_deadlock_would_occur = int(std::errc::resource_deadlock_would_occur),
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resource_unavailable_try_again =
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int(std::errc::resource_unavailable_try_again),
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result_out_of_range = int(std::errc::result_out_of_range),
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too_many_files_open_in_system = int(std::errc::too_many_files_open_in_system),
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too_many_files_open = int(std::errc::too_many_files_open),
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too_many_links = int(std::errc::too_many_links)
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};
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inline std::error_code make_error_code(errc E) {
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return std::error_code(static_cast<int>(E), std::generic_category());
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}
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}
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namespace std {
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template <> struct is_error_code_enum<llvm::errc> : std::true_type {};
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}
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#endif
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