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comparison include/llvm/Support/Errc.h @ 77:54457678186b

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
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34:e874dbf0ad9d 77:54457678186b
1 //===- llvm/Support/Errc.h - Defines the llvm::errc enum --------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // While std::error_code works OK on all platforms we use, there are some
11 // some problems with std::errc that can be avoided by using our own
12 // enumeration:
13 //
14 // * std::errc is a namespace in some implementations. That meas that ADL
15 // doesn't work and it is sometimes necessary to write std::make_error_code
16 // or in templates:
17 // using std::make_error_code;
18 // make_error_code(...);
19 //
20 // with this enum it is safe to always just use make_error_code.
21 //
22 // * Some implementations define fewer names than others. This header has
23 // the intersection of all the ones we support.
24 //
25 // * std::errc is just marked with is_error_condition_enum. This means that
26 // common patters like AnErrorCode == errc::no_such_file_or_directory take
27 // 4 virtual calls instead of two comparisons.
28 //===----------------------------------------------------------------------===//
29
30 #ifndef LLVM_SUPPORT_ERRC_H
31 #define LLVM_SUPPORT_ERRC_H
32
33 #include <system_error>
34
35 namespace llvm {
36 enum class errc {
37 argument_list_too_long = int(std::errc::argument_list_too_long),
38 argument_out_of_domain = int(std::errc::argument_out_of_domain),
39 bad_address = int(std::errc::bad_address),
40 bad_file_descriptor = int(std::errc::bad_file_descriptor),
41 broken_pipe = int(std::errc::broken_pipe),
42 device_or_resource_busy = int(std::errc::device_or_resource_busy),
43 directory_not_empty = int(std::errc::directory_not_empty),
44 executable_format_error = int(std::errc::executable_format_error),
45 file_exists = int(std::errc::file_exists),
46 file_too_large = int(std::errc::file_too_large),
47 filename_too_long = int(std::errc::filename_too_long),
48 function_not_supported = int(std::errc::function_not_supported),
49 illegal_byte_sequence = int(std::errc::illegal_byte_sequence),
50 inappropriate_io_control_operation =
51 int(std::errc::inappropriate_io_control_operation),
52 interrupted = int(std::errc::interrupted),
53 invalid_argument = int(std::errc::invalid_argument),
54 invalid_seek = int(std::errc::invalid_seek),
55 io_error = int(std::errc::io_error),
56 is_a_directory = int(std::errc::is_a_directory),
57 no_child_process = int(std::errc::no_child_process),
58 no_lock_available = int(std::errc::no_lock_available),
59 no_space_on_device = int(std::errc::no_space_on_device),
60 no_such_device_or_address = int(std::errc::no_such_device_or_address),
61 no_such_device = int(std::errc::no_such_device),
62 no_such_file_or_directory = int(std::errc::no_such_file_or_directory),
63 no_such_process = int(std::errc::no_such_process),
64 not_a_directory = int(std::errc::not_a_directory),
65 not_enough_memory = int(std::errc::not_enough_memory),
66 operation_not_permitted = int(std::errc::operation_not_permitted),
67 permission_denied = int(std::errc::permission_denied),
68 read_only_file_system = int(std::errc::read_only_file_system),
69 resource_deadlock_would_occur = int(std::errc::resource_deadlock_would_occur),
70 resource_unavailable_try_again =
71 int(std::errc::resource_unavailable_try_again),
72 result_out_of_range = int(std::errc::result_out_of_range),
73 too_many_files_open_in_system = int(std::errc::too_many_files_open_in_system),
74 too_many_files_open = int(std::errc::too_many_files_open),
75 too_many_links = int(std::errc::too_many_links)
76 };
77
78 inline std::error_code make_error_code(errc E) {
79 return std::error_code(static_cast<int>(E), std::generic_category());
80 }
81 }
82
83 namespace std {
84 template <> struct is_error_code_enum<llvm::errc> : std::true_type {};
85 }
86 #endif