X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=lib%2Fstdbool.in.h;fp=lib%2Fstdbool.in.h;h=7c1577277fae183420939b7a2c1a6a2a4b2ed8aa;hb=d57728a6ca2413a7c564d8b7bb13d9e5a5a180f3;hp=ed1f9aa488b1329a039aad50df316dc24d3a5653;hpb=dc84183747ce1703eb99685b5dbde1f65a143c06;p=debian%2Fgzip diff --git a/lib/stdbool.in.h b/lib/stdbool.in.h index ed1f9aa..7c15772 100644 --- a/lib/stdbool.in.h +++ b/lib/stdbool.in.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001-2003, 2006-2012 Free Software Foundation, Inc. +/* Copyright (C) 2001-2003, 2006-2013 Free Software Foundation, Inc. Written by Bruno Haible , 2001. This program is free software; you can redistribute it and/or modify @@ -66,24 +66,19 @@ # 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__) +#ifdef __cplusplus +# define _Bool bool +# define bool bool +#else +# if 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@ +# if !@HAVE__BOOL@ typedef bool _Bool; -# endif -#else -# if !defined __GNUC__ +# 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 @@ -103,19 +98,35 @@ typedef bool _Bool; "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 +# define _Bool signed char +# else /* With this compiler, trust the _Bool type if the compiler has it. */ -# if !@HAVE__BOOL@ +# if !@HAVE__BOOL@ + /* For the sake of symbolic names in gdb, 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 then + values of type '_Bool' might 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 add a negative value to the + enum; this ensures that '_Bool' promotes to 'int'. */ typedef enum { _Bool_must_promote_to_int = -1, false = 0, true = 1 } _Bool; +# endif # endif # endif +# define bool _Bool #endif -#define bool _Bool /* The other macros must be usable in preprocessor directives. */ -#define false 0 -#define true 1 +#ifdef __cplusplus +# define false false +# define true true +#else +# define false 0 +# define true 1 +#endif + #define __bool_true_false_are_defined 1 #endif /* _GL_STDBOOL_H */