| Index: bison/src/bison/2.4.1/bison-2.4.1-src/lib/stdbool.in.h
|
| ===================================================================
|
| --- bison/src/bison/2.4.1/bison-2.4.1-src/lib/stdbool.in.h (revision 0)
|
| +++ bison/src/bison/2.4.1/bison-2.4.1-src/lib/stdbool.in.h (revision 0)
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| @@ -0,0 +1,121 @@
|
| +/* -*- buffer-read-only: t -*- vi: set ro: */
|
| +/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
|
| +/* Copyright (C) 2001-2003, 2006-2008 Free Software Foundation, Inc.
|
| + Written by Bruno Haible <haible@clisp.cons.org>, 2001.
|
| +
|
| + This program is free software; you can redistribute it and/or modify
|
| + it under the terms of the GNU General Public License as published by
|
| + the Free Software Foundation; either version 3, or (at your option)
|
| + any later version.
|
| +
|
| + This program is distributed in the hope that it will be useful,
|
| + but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| + GNU General Public License for more details.
|
| +
|
| + You should have received a copy of the GNU General Public License
|
| + along with this program; if not, write to the Free Software Foundation,
|
| + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
|
| +
|
| +#ifndef _GL_STDBOOL_H
|
| +#define _GL_STDBOOL_H
|
| +
|
| +/* ISO C 99 <stdbool.h> for platforms that lack it. */
|
| +
|
| +/* Usage suggestions:
|
| +
|
| + Programs that use <stdbool.h> should be aware of some limitations
|
| + and standards compliance issues.
|
| +
|
| + Standards compliance:
|
| +
|
| + - <stdbool.h> must be #included before 'bool', 'false', 'true'
|
| + can be used.
|
| +
|
| + - You cannot assume that sizeof (bool) == 1.
|
| +
|
| + - Programs should not undefine the macros bool, true, and false,
|
| + as C99 lists that as an "obsolescent feature".
|
| +
|
| + Limitations of this substitute, when used in a C89 environment:
|
| +
|
| + - <stdbool.h> must be #included before the '_Bool' type can be used.
|
| +
|
| + - You cannot assume that _Bool is a typedef; it might be a macro.
|
| +
|
| + - Bit-fields of type 'bool' are not supported. Portable code
|
| + should use 'unsigned int foo : 1;' rather than 'bool foo : 1;'.
|
| +
|
| + - 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
|
| + to 'true', and zero gets converted to 'false'. This doesn't work
|
| + with this substitute. With this substitute, only the values 0 and 1
|
| + give the expected result when converted to _Bool' or 'bool'.
|
| +
|
| + Also, it is suggested that programs use 'bool' rather than '_Bool';
|
| + this isn't required, but 'bool' is more common. */
|
| +
|
| +
|
| +/* 7.16. Boolean type and values */
|
| +
|
| +/* BeOS <sys/socket.h> already #defines false 0, true 1. We use the same
|
| + definitions below, but temporarily we have to #undef them. */
|
| +#if defined __BEOS__ && !defined __HAIKU__
|
| +# include <OS.h> /* defines bool but not _Bool */
|
| +# undef false
|
| +# undef true
|
| +#endif
|
| +
|
| +/* For the sake of symbolic names in gdb, we define true and false as
|
| + enum constants, not only as macros.
|
| + It is tempting to write
|
| + typedef enum { false = 0, true = 1 } _Bool;
|
| + so that gdb prints values of type 'bool' symbolically. But if we do
|
| + this, values of type '_Bool' may promote to 'int' or 'unsigned int'
|
| + (see ISO C 99 6.7.2.2.(4)); however, '_Bool' must promote to 'int'
|
| + (see ISO C 99 6.3.1.1.(2)). So we add a negative value to the
|
| + enum; this ensures that '_Bool' promotes to 'int'. */
|
| +#if defined __cplusplus || (defined __BEOS__ && !defined __HAIKU__)
|
| + /* A compiler known to have 'bool'. */
|
| + /* If the compiler already has both 'bool' and '_Bool', we can assume they
|
| + are the same types. */
|
| +# if !@HAVE__BOOL@
|
| +typedef bool _Bool;
|
| +# endif
|
| +#else
|
| +# if !defined __GNUC__
|
| + /* If @HAVE__BOOL@:
|
| + Some HP-UX cc and AIX IBM C compiler versions have compiler bugs when
|
| + the built-in _Bool type is used. See
|
| + http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
|
| + http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
|
| + http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
|
| + Similar bugs are likely with other compilers as well; this file
|
| + wouldn't be used if <stdbool.h> was working.
|
| + So we override the _Bool type.
|
| + If !@HAVE__BOOL@:
|
| + Need to define _Bool ourselves. As 'signed char' or as an enum type?
|
| + Use of a typedef, with SunPRO C, leads to a stupid
|
| + "warning: _Bool is a keyword in ISO C99".
|
| + Use of an enum type, with IRIX cc, leads to a stupid
|
| + "warning(1185): enumerated type mixed with another type".
|
| + Even the existence of an enum type, without a typedef,
|
| + "Invalid enumerator. (badenum)" with HP-UX cc on Tru64.
|
| + The only benefit of the enum, debuggability, is not important
|
| + with these compilers. So use 'signed char' and no enum. */
|
| +# define _Bool signed char
|
| +# else
|
| + /* With this compiler, trust the _Bool type if the compiler has it. */
|
| +# if !@HAVE__BOOL@
|
| +typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool;
|
| +# endif
|
| +# endif
|
| +#endif
|
| +#define bool _Bool
|
| +
|
| +/* The other macros must be usable in preprocessor directives. */
|
| +#define false 0
|
| +#define true 1
|
| +#define __bool_true_false_are_defined 1
|
| +
|
| +#endif /* _GL_STDBOOL_H */
|
|
|
| Property changes on: bison\src\bison\2.4.1\bison-2.4.1-src\lib\stdbool.in.h
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| ___________________________________________________________________
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