118 lines
4.2 KiB
C
118 lines
4.2 KiB
C
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
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#if !defined _GL_STDBOOL_H
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#if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95))
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#include <stdbool.h>
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#else
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/* Copyright (C) 2001-2003, 2006-2017, 2019 Free Software Foundation, Inc.
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Written by Bruno Haible <haible@clisp.cons.org>, 2001.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#ifndef _TEXTSTYLE_STDBOOL_H
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#define _TEXTSTYLE_STDBOOL_H
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/* ISO C 99 <stdbool.h> for platforms that lack it. */
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/* Usage suggestions:
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Programs that use <stdbool.h> should be aware of some limitations
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and standards compliance issues.
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Standards compliance:
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- <stdbool.h> must be #included before 'bool', 'false', 'true'
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can be used.
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- You cannot assume that sizeof (bool) == 1.
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- Programs should not undefine the macros bool, true, and false,
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as C99 lists that as an "obsolescent feature".
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Limitations of this substitute, when used in a C89 environment:
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- <stdbool.h> must be #included before the '_Bool' type can be used.
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- You cannot assume that _Bool is a typedef; it might be a macro.
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- Bit-fields of type 'bool' are not supported. Portable code
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should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'.
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- In C99, casts and automatic conversions to '_Bool' or 'bool' are
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performed in such a way that every nonzero value gets converted
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to 'true', and zero gets converted to 'false'. This doesn't work
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with this substitute. With this substitute, only the values 0 and 1
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give the expected result when converted to _Bool' or 'bool'.
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- C99 allows the use of (_Bool)0.0 in constant expressions, but
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this substitute cannot always provide this property.
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Also, it is suggested that programs use 'bool' rather than '_Bool';
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this isn't required, but 'bool' is more common. */
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/* 7.16. Boolean type and values */
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#ifdef __cplusplus
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/* Assume the compiler has 'bool' and '_Bool'. */
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#else
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/* <stdbool.h> is known to exist and work with the following compilers:
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- GNU C 3.0 or newer, on any platform,
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- Intel C,
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- MSVC 12 (Visual Studio 2013) or newer,
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- Sun C, on Solaris, if _STDC_C99 is defined,
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- AIX xlc, if _ANSI_C_SOURCE is defined,
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- HP C, on HP-UX 11.31 or newer.
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It is know not to work with:
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- Sun C, on Solaris, if __C99FEATURES__ is defined but _STDC_C99 is not,
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- MIPSpro C 7.30, on IRIX. */
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# if (__GNUC__ >= 3) \
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|| defined __INTEL_COMPILER \
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|| (_MSC_VER >= 1800) \
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|| (defined __SUNPRO_C && defined _STDC_C99) \
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|| (defined _AIX && !defined __GNUC__ && defined _ANSI_C_SOURCE) \
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|| defined __HP_cc
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/* Assume the compiler has <stdbool.h>. */
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# include <stdbool.h>
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# else
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/* Need to define _Bool ourselves. As 'signed char' or as an enum type?
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Use of a typedef, with SunPRO C, leads to a stupid
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"warning: _Bool is a keyword in ISO C99".
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Use of an enum type, with IRIX cc, leads to a stupid
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"warning(1185): enumerated type mixed with another type".
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Even the existence of an enum type, without a typedef,
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"Invalid enumerator. (badenum)" with HP-UX cc on Tru64.
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The only benefit of the enum, debuggability, is not important
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with these compilers. So use 'signed char' and no enum. */
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# define _Bool signed char
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# define bool _Bool
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# endif
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#endif
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/* The other macros must be usable in preprocessor directives. */
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#ifdef __cplusplus
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# define false false
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# define true true
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#else
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# undef false
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# define false 0
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# undef true
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# define true 1
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#endif
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#define __bool_true_false_are_defined 1
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#endif /* _TEXTSTYLE_STDBOOL_H */
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#endif
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#endif
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