1274955Ssvnmir//===- llvm/Support/Errc.h - Defines the llvm::errc enum --------*- C++ -*-===// 2274955Ssvnmir// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6274955Ssvnmir// 7274955Ssvnmir//===----------------------------------------------------------------------===// 8274955Ssvnmir// 9274955Ssvnmir// While std::error_code works OK on all platforms we use, there are some 10274955Ssvnmir// some problems with std::errc that can be avoided by using our own 11274955Ssvnmir// enumeration: 12274955Ssvnmir// 13274955Ssvnmir// * std::errc is a namespace in some implementations. That meas that ADL 14274955Ssvnmir// doesn't work and it is sometimes necessary to write std::make_error_code 15274955Ssvnmir// or in templates: 16274955Ssvnmir// using std::make_error_code; 17274955Ssvnmir// make_error_code(...); 18274955Ssvnmir// 19274955Ssvnmir// with this enum it is safe to always just use make_error_code. 20274955Ssvnmir// 21274955Ssvnmir// * Some implementations define fewer names than others. This header has 22274955Ssvnmir// the intersection of all the ones we support. 23274955Ssvnmir// 24274955Ssvnmir// * std::errc is just marked with is_error_condition_enum. This means that 25274955Ssvnmir// common patters like AnErrorCode == errc::no_such_file_or_directory take 26274955Ssvnmir// 4 virtual calls instead of two comparisons. 27274955Ssvnmir//===----------------------------------------------------------------------===// 28274955Ssvnmir 29274955Ssvnmir#ifndef LLVM_SUPPORT_ERRC_H 30274955Ssvnmir#define LLVM_SUPPORT_ERRC_H 31274955Ssvnmir 32274955Ssvnmir#include <system_error> 33274955Ssvnmir 34274955Ssvnmirnamespace llvm { 35274955Ssvnmirenum class errc { 36274955Ssvnmir argument_list_too_long = int(std::errc::argument_list_too_long), 37274955Ssvnmir argument_out_of_domain = int(std::errc::argument_out_of_domain), 38274955Ssvnmir bad_address = int(std::errc::bad_address), 39274955Ssvnmir bad_file_descriptor = int(std::errc::bad_file_descriptor), 40274955Ssvnmir broken_pipe = int(std::errc::broken_pipe), 41274955Ssvnmir device_or_resource_busy = int(std::errc::device_or_resource_busy), 42274955Ssvnmir directory_not_empty = int(std::errc::directory_not_empty), 43274955Ssvnmir executable_format_error = int(std::errc::executable_format_error), 44274955Ssvnmir file_exists = int(std::errc::file_exists), 45274955Ssvnmir file_too_large = int(std::errc::file_too_large), 46274955Ssvnmir filename_too_long = int(std::errc::filename_too_long), 47274955Ssvnmir function_not_supported = int(std::errc::function_not_supported), 48274955Ssvnmir illegal_byte_sequence = int(std::errc::illegal_byte_sequence), 49274955Ssvnmir inappropriate_io_control_operation = 50274955Ssvnmir int(std::errc::inappropriate_io_control_operation), 51274955Ssvnmir interrupted = int(std::errc::interrupted), 52274955Ssvnmir invalid_argument = int(std::errc::invalid_argument), 53274955Ssvnmir invalid_seek = int(std::errc::invalid_seek), 54274955Ssvnmir io_error = int(std::errc::io_error), 55274955Ssvnmir is_a_directory = int(std::errc::is_a_directory), 56274955Ssvnmir no_child_process = int(std::errc::no_child_process), 57274955Ssvnmir no_lock_available = int(std::errc::no_lock_available), 58274955Ssvnmir no_space_on_device = int(std::errc::no_space_on_device), 59274955Ssvnmir no_such_device_or_address = int(std::errc::no_such_device_or_address), 60274955Ssvnmir no_such_device = int(std::errc::no_such_device), 61274955Ssvnmir no_such_file_or_directory = int(std::errc::no_such_file_or_directory), 62274955Ssvnmir no_such_process = int(std::errc::no_such_process), 63274955Ssvnmir not_a_directory = int(std::errc::not_a_directory), 64274955Ssvnmir not_enough_memory = int(std::errc::not_enough_memory), 65341825Sdim not_supported = int(std::errc::not_supported), 66274955Ssvnmir operation_not_permitted = int(std::errc::operation_not_permitted), 67274955Ssvnmir permission_denied = int(std::errc::permission_denied), 68274955Ssvnmir read_only_file_system = int(std::errc::read_only_file_system), 69274955Ssvnmir resource_deadlock_would_occur = int(std::errc::resource_deadlock_would_occur), 70274955Ssvnmir resource_unavailable_try_again = 71274955Ssvnmir int(std::errc::resource_unavailable_try_again), 72274955Ssvnmir result_out_of_range = int(std::errc::result_out_of_range), 73274955Ssvnmir too_many_files_open_in_system = int(std::errc::too_many_files_open_in_system), 74274955Ssvnmir too_many_files_open = int(std::errc::too_many_files_open), 75274955Ssvnmir too_many_links = int(std::errc::too_many_links) 76274955Ssvnmir}; 77274955Ssvnmir 78274955Ssvnmirinline std::error_code make_error_code(errc E) { 79274955Ssvnmir return std::error_code(static_cast<int>(E), std::generic_category()); 80274955Ssvnmir} 81274955Ssvnmir} 82274955Ssvnmir 83274955Ssvnmirnamespace std { 84274955Ssvnmirtemplate <> struct is_error_code_enum<llvm::errc> : std::true_type {}; 85274955Ssvnmir} 86274955Ssvnmir#endif 87