1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* ANSI and traditional C compatibility macros
4    This file is part of the GNU C Library.
8 /* ANSI and traditional C compatibility macros
10    ANSI C is assumed if __STDC__ is #defined.
12    Macro	ANSI C definition	Traditional C definition
13    -----	---- - ----------	----------- - ----------
23    DEFUN (name, arglist, args)
25 	Defines function NAME.
28 	parentheses.  ARGLIST becomes the argument list in traditional C.
31 	ANSI C, and the type declarations in traditional C.  Arguments should
35    DEFUN_VOID (name)
37 	Defines a function NAME, which takes no arguments.
39    obsolete --     EXFUN (name, (prototype))	-- obsolete.
43 	In ANSI C it is `NAME PROTOTYPE' (so PROTOTYPE should be enclosed in
44 	parentheses).  In traditional C it is `NAME()'.
50 	the name is misleading and the result is ugly.  So we just define a
62 	the function name out of the mess.   EXFUN should be considered
74 #define	_ANSIDECL_H	1
84    define __STDC__).  The RISC/OS MIPS compiler defines these things
85    in SVR4 mode, but does not define __STDC__.  */
87 #define	PTR		void *
88 #define	PTRCONST	void *CONST
89 #define	LONG_DOUBLE	long double
91 #define	AND		,
92 #define	NOARGS		void
93 #define	CONST		const
94 #define	VOLATILE	volatile
95 #define	SIGNED		signed
96 #define	DOTS		, ...
98 #define	EXFUN(name, proto)		name proto  argument
99 #define	DEFUN(name, arglist, args)	name(args)  argument
100 #define	DEFUN_VOID(name)		name(void)  argument
102 #define PROTO(type, name, arglist)	type name arglist  argument
103 #define PARAMS(paramlist)		paramlist
104 #define ANSI_PROTOTYPES			1
106 #else	/* Not ANSI C.  */
108 #define	PTR		char *
109 #define	PTRCONST	PTR
110 #define	LONG_DOUBLE	double
112 #define	AND		;
113 #define	NOARGS
114 #define	CONST
115 #ifndef const /* some systems define it in header files for non-ansi mode */
116 #define	const
118 #define	VOLATILE
119 #define	SIGNED
120 #define	DOTS
122 #define	EXFUN(name, proto)		name()  argument
123 #define	DEFUN(name, arglist, args)	name arglist args;  argument
124 #define	DEFUN_VOID(name)		name()  argument
125 #define PROTO(type, name, arglist) type name ()  argument
126 #define PARAMS(paramlist)		()
128 #endif	/* ANSI C.  */