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author | Lorenz <12514511+RincewindsHat@users.noreply.github.com> | 2023-02-10 10:43:20 (GMT) |
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committer | GitHub <noreply@github.com> | 2023-02-10 10:43:20 (GMT) |
commit | c07206f2ccc2356aa74bc6813a94c2190017d44e (patch) | |
tree | 1677e5fdca5c3ce544e92c5484e16a0b68df1cc9 /gl/stdbool.in.h | |
parent | e92046f810658016b7c373677efefda3b21400e4 (diff) | |
parent | d2fcf49ad4afc15f37d082d7bc96a808369ec2d4 (diff) | |
download | monitoring-plugins-c07206f.tar.gz |
Merge pull request #1832 from RincewindsHat/gnulib_update_2023
Gnulib update 2023 and attendant fixes
Diffstat (limited to 'gl/stdbool.in.h')
-rw-r--r-- | gl/stdbool.in.h | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/gl/stdbool.in.h b/gl/stdbool.in.h deleted file mode 100644 index 7c15772..0000000 --- a/gl/stdbool.in.h +++ /dev/null | |||
@@ -1,132 +0,0 @@ | |||
1 | /* Copyright (C) 2001-2003, 2006-2013 Free Software Foundation, Inc. | ||
2 | Written by Bruno Haible <haible@clisp.cons.org>, 2001. | ||
3 | |||
4 | This program is free software; you can redistribute it and/or modify | ||
5 | it under the terms of the GNU General Public License as published by | ||
6 | the Free Software Foundation; either version 3, or (at your option) | ||
7 | any later version. | ||
8 | |||
9 | This program is distributed in the hope that it will be useful, | ||
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
12 | GNU General Public License for more details. | ||
13 | |||
14 | You should have received a copy of the GNU General Public License | ||
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ | ||
16 | |||
17 | #ifndef _GL_STDBOOL_H | ||
18 | #define _GL_STDBOOL_H | ||
19 | |||
20 | /* ISO C 99 <stdbool.h> for platforms that lack it. */ | ||
21 | |||
22 | /* Usage suggestions: | ||
23 | |||
24 | Programs that use <stdbool.h> should be aware of some limitations | ||
25 | and standards compliance issues. | ||
26 | |||
27 | Standards compliance: | ||
28 | |||
29 | - <stdbool.h> must be #included before 'bool', 'false', 'true' | ||
30 | can be used. | ||
31 | |||
32 | - You cannot assume that sizeof (bool) == 1. | ||
33 | |||
34 | - Programs should not undefine the macros bool, true, and false, | ||
35 | as C99 lists that as an "obsolescent feature". | ||
36 | |||
37 | Limitations of this substitute, when used in a C89 environment: | ||
38 | |||
39 | - <stdbool.h> must be #included before the '_Bool' type can be used. | ||
40 | |||
41 | - You cannot assume that _Bool is a typedef; it might be a macro. | ||
42 | |||
43 | - Bit-fields of type 'bool' are not supported. Portable code | ||
44 | should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'. | ||
45 | |||
46 | - In C99, casts and automatic conversions to '_Bool' or 'bool' are | ||
47 | performed in such a way that every nonzero value gets converted | ||
48 | to 'true', and zero gets converted to 'false'. This doesn't work | ||
49 | with this substitute. With this substitute, only the values 0 and 1 | ||
50 | give the expected result when converted to _Bool' or 'bool'. | ||
51 | |||
52 | - C99 allows the use of (_Bool)0.0 in constant expressions, but | ||
53 | this substitute cannot always provide this property. | ||
54 | |||
55 | Also, it is suggested that programs use 'bool' rather than '_Bool'; | ||
56 | this isn't required, but 'bool' is more common. */ | ||
57 | |||
58 | |||
59 | /* 7.16. Boolean type and values */ | ||
60 | |||
61 | /* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same | ||
62 | definitions below, but temporarily we have to #undef them. */ | ||
63 | #if defined __BEOS__ && !defined __HAIKU__ | ||
64 | # include <OS.h> /* defines bool but not _Bool */ | ||
65 | # undef false | ||
66 | # undef true | ||
67 | #endif | ||
68 | |||
69 | #ifdef __cplusplus | ||
70 | # define _Bool bool | ||
71 | # define bool bool | ||
72 | #else | ||
73 | # if defined __BEOS__ && !defined __HAIKU__ | ||
74 | /* A compiler known to have 'bool'. */ | ||
75 | /* If the compiler already has both 'bool' and '_Bool', we can assume they | ||
76 | are the same types. */ | ||
77 | # if !@HAVE__BOOL@ | ||
78 | typedef bool _Bool; | ||
79 | # endif | ||
80 | # else | ||
81 | # if !defined __GNUC__ | ||
82 | /* If @HAVE__BOOL@: | ||
83 | Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when | ||
84 | the built-in _Bool type is used. See | ||
85 | http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html | ||
86 | http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html | ||
87 | http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html | ||
88 | Similar bugs are likely with other compilers as well; this file | ||
89 | wouldn't be used if <stdbool.h> was working. | ||
90 | So we override the _Bool type. | ||
91 | If !@HAVE__BOOL@: | ||
92 | Need to define _Bool ourselves. As 'signed char' or as an enum type? | ||
93 | Use of a typedef, with SunPRO C, leads to a stupid | ||
94 | "warning: _Bool is a keyword in ISO C99". | ||
95 | Use of an enum type, with IRIX cc, leads to a stupid | ||
96 | "warning(1185): enumerated type mixed with another type". | ||
97 | Even the existence of an enum type, without a typedef, | ||
98 | "Invalid enumerator. (badenum)" with HP-UX cc on Tru64. | ||
99 | The only benefit of the enum, debuggability, is not important | ||
100 | with these compilers. So use 'signed char' and no enum. */ | ||
101 | # define _Bool signed char | ||
102 | # else | ||
103 | /* With this compiler, trust the _Bool type if the compiler has it. */ | ||
104 | # if !@HAVE__BOOL@ | ||
105 | /* For the sake of symbolic names in gdb, define true and false as | ||
106 | enum constants, not only as macros. | ||
107 | It is tempting to write | ||
108 | typedef enum { false = 0, true = 1 } _Bool; | ||
109 | so that gdb prints values of type 'bool' symbolically. But then | ||
110 | values of type '_Bool' might promote to 'int' or 'unsigned int' | ||
111 | (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int' | ||
112 | (see ISO C 99 6.3.1.1.(2)). So add a negative value to the | ||
113 | enum; this ensures that '_Bool' promotes to 'int'. */ | ||
114 | typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool; | ||
115 | # endif | ||
116 | # endif | ||
117 | # endif | ||
118 | # define bool _Bool | ||
119 | #endif | ||
120 | |||
121 | /* The other macros must be usable in preprocessor directives. */ | ||
122 | #ifdef __cplusplus | ||
123 | # define false false | ||
124 | # define true true | ||
125 | #else | ||
126 | # define false 0 | ||
127 | # define true 1 | ||
128 | #endif | ||
129 | |||
130 | #define __bool_true_false_are_defined 1 | ||
131 | |||
132 | #endif /* _GL_STDBOOL_H */ | ||