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author | Thomas Guyot-Sionnest <dermoth@users.sourceforge.net> | 2008-02-12 11:07:18 +0000 |
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committer | Thomas Guyot-Sionnest <dermoth@users.sourceforge.net> | 2008-02-12 11:07:18 +0000 |
commit | bd7029a99b0c2974265c6665638ef14a052f42ab (patch) | |
tree | f5661ba73366d81ef6e91f889ea7fec5ebe07b6b /gl/stdbool_.h | |
parent | f99612320d6eda67644c07be04bb21aa4d7789db (diff) | |
download | monitoring-plugins-bd7029a99b0c2974265c6665638ef14a052f42ab.tar.gz |
Sync to latest Gnulib
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1925 f882894a-f735-0410-b71e-b25c423dba1c
Diffstat (limited to 'gl/stdbool_.h')
-rw-r--r-- | gl/stdbool_.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/gl/stdbool_.h b/gl/stdbool_.h deleted file mode 100644 index efa80ba9..00000000 --- a/gl/stdbool_.h +++ /dev/null | |||
@@ -1,115 +0,0 @@ | |||
1 | /* Copyright (C) 2001, 2002, 2003, 2006 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 2, 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, write to the Free Software Foundation, | ||
16 | Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | ||
17 | |||
18 | #ifndef _STDBOOL_H | ||
19 | #define _STDBOOL_H | ||
20 | |||
21 | /* ISO C 99 <stdbool.h> for platforms that lack it. */ | ||
22 | |||
23 | /* Usage suggestions: | ||
24 | |||
25 | Programs that use <stdbool.h> should be aware of some limitations | ||
26 | and standards compliance issues. | ||
27 | |||
28 | Standards compliance: | ||
29 | |||
30 | - <stdbool.h> must be #included before 'bool', 'false', 'true' | ||
31 | can be used. | ||
32 | |||
33 | - You cannot assume that sizeof (bool) == 1. | ||
34 | |||
35 | - Programs should not undefine the macros bool, true, and false, | ||
36 | as C99 lists that as an "obsolescent feature". | ||
37 | |||
38 | Limitations of this substitute, when used in a C89 environment: | ||
39 | |||
40 | - <stdbool.h> must be #included before the '_Bool' type can be used. | ||
41 | |||
42 | - You cannot assume that _Bool is a typedef; it might be a macro. | ||
43 | |||
44 | - In C99, casts and automatic conversions to '_Bool' or 'bool' are | ||
45 | performed in such a way that every nonzero value gets converted | ||
46 | to 'true', and zero gets converted to 'false'. This doesn't work | ||
47 | with this substitute. With this substitute, only the values 0 and 1 | ||
48 | give the expected result when converted to _Bool' or 'bool'. | ||
49 | |||
50 | Also, it is suggested that programs use 'bool' rather than '_Bool'; | ||
51 | this isn't required, but 'bool' is more common. */ | ||
52 | |||
53 | |||
54 | /* 7.16. Boolean type and values */ | ||
55 | |||
56 | /* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same | ||
57 | definitions below, but temporarily we have to #undef them. */ | ||
58 | #ifdef __BEOS__ | ||
59 | # include <OS.h> /* defines bool but not _Bool */ | ||
60 | # undef false | ||
61 | # undef true | ||
62 | #endif | ||
63 | |||
64 | /* For the sake of symbolic names in gdb, we define true and false as | ||
65 | enum constants, not only as macros. | ||
66 | It is tempting to write | ||
67 | typedef enum { false = 0, true = 1 } _Bool; | ||
68 | so that gdb prints values of type 'bool' symbolically. But if we do | ||
69 | this, values of type '_Bool' may promote to 'int' or 'unsigned int' | ||
70 | (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int' | ||
71 | (see ISO C 99 6.3.1.1.(2)). So we add a negative value to the | ||
72 | enum; this ensures that '_Bool' promotes to 'int'. */ | ||
73 | #if defined __cplusplus || defined __BEOS__ | ||
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 | The only benefit of the enum type, debuggability, is not important | ||
98 | with these compilers. So use 'signed char' and no typedef. */ | ||
99 | # define _Bool signed char | ||
100 | enum { false = 0, true = 1 }; | ||
101 | # else | ||
102 | /* With this compiler, trust the _Bool type if the compiler has it. */ | ||
103 | # if !@HAVE__BOOL@ | ||
104 | typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool; | ||
105 | # endif | ||
106 | # endif | ||
107 | #endif | ||
108 | #define bool _Bool | ||
109 | |||
110 | /* The other macros must be usable in preprocessor directives. */ | ||
111 | #define false 0 | ||
112 | #define true 1 | ||
113 | #define __bool_true_false_are_defined 1 | ||
114 | |||
115 | #endif /* _STDBOOL_H */ | ||