/* ANSI and traditional C compatability macros
|
/* ANSI and traditional C compatability macros
|
Copyright 1991 Free Software Foundation, Inc.
|
Copyright 1991 Free Software Foundation, Inc.
|
This file is part of the GNU C Library.
|
This file is part of the GNU C Library.
|
|
|
This program is free software; you can redistribute it and/or modify
|
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
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 2 of the License, or
|
the Free Software Foundation; either version 2 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
/* ANSI and traditional C compatibility macros
|
/* ANSI and traditional C compatibility macros
|
|
|
Some ANSI environments are "broken" in the sense that __STDC__ cannot be
|
Some ANSI environments are "broken" in the sense that __STDC__ cannot be
|
relied upon to have it's intended meaning. Therefore we must use our own
|
relied upon to have it's intended meaning. Therefore we must use our own
|
concoction: _HAVE_STDC. Always use _HAVE_STDC instead of __STDC__ in newlib
|
concoction: _HAVE_STDC. Always use _HAVE_STDC instead of __STDC__ in newlib
|
sources!
|
sources!
|
|
|
ANSI C is assumed if _HAVE_STDC is #defined.
|
ANSI C is assumed if _HAVE_STDC is #defined.
|
|
|
Macro ANSI C definition Traditional C definition
|
Macro ANSI C definition Traditional C definition
|
----- ---- - ---------- ----------- - ----------
|
----- ---- - ---------- ----------- - ----------
|
PTR `void *' `char *'
|
PTR `void *' `char *'
|
LONG_DOUBLE `long double' `double'
|
LONG_DOUBLE `long double' `double'
|
CONST `const' `'
|
CONST `const' `'
|
VOLATILE `volatile' `'
|
VOLATILE `volatile' `'
|
SIGNED `signed' `'
|
SIGNED `signed' `'
|
PTRCONST `void *const' `char *'
|
PTRCONST `void *const' `char *'
|
|
|
DEFUN(name, arglist, args)
|
DEFUN(name, arglist, args)
|
|
|
Defines function NAME.
|
Defines function NAME.
|
|
|
ARGLIST lists the arguments, separated by commas and enclosed in
|
ARGLIST lists the arguments, separated by commas and enclosed in
|
parentheses. ARGLIST becomes the argument list in traditional C.
|
parentheses. ARGLIST becomes the argument list in traditional C.
|
|
|
ARGS list the arguments with their types. It becomes a prototype in
|
ARGS list the arguments with their types. It becomes a prototype in
|
ANSI C, and the type declarations in traditional C. Arguments should
|
ANSI C, and the type declarations in traditional C. Arguments should
|
be separated with `AND'. For functions with a variable number of
|
be separated with `AND'. For functions with a variable number of
|
arguments, the last thing listed should be `DOTS'.
|
arguments, the last thing listed should be `DOTS'.
|
|
|
DEFUN_VOID(name)
|
DEFUN_VOID(name)
|
|
|
Defines a function NAME, which takes no arguments.
|
Defines a function NAME, which takes no arguments.
|
|
|
EXFUN(name, prototype)
|
EXFUN(name, prototype)
|
|
|
Is used in an external function declaration.
|
Is used in an external function declaration.
|
In ANSI C it is `NAMEPROTOTYPE' (so PROTOTYPE should be enclosed in
|
In ANSI C it is `NAMEPROTOTYPE' (so PROTOTYPE should be enclosed in
|
parentheses). In traditional C it is `NAME()'.
|
parentheses). In traditional C it is `NAME()'.
|
For a function that takes no arguments, PROTOTYPE should be `(NOARGS)'.
|
For a function that takes no arguments, PROTOTYPE should be `(NOARGS)'.
|
|
|
For example:
|
For example:
|
extern int EXFUN(printf, (CONST char *format DOTS));
|
extern int EXFUN(printf, (CONST char *format DOTS));
|
int DEFUN(fprintf, (stream, format),
|
int DEFUN(fprintf, (stream, format),
|
FILE *stream AND CONST char *format DOTS) { ... }
|
FILE *stream AND CONST char *format DOTS) { ... }
|
void DEFUN_VOID(abort) { ... }
|
void DEFUN_VOID(abort) { ... }
|
*/
|
*/
|
|
|
#ifndef _ANSIDECL_H
|
#ifndef _ANSIDECL_H
|
|
|
#define _ANSIDECL_H 1
|
#define _ANSIDECL_H 1
|
|
|
|
|
/* Every source file includes this file,
|
/* Every source file includes this file,
|
so they will all get the switch for lint. */
|
so they will all get the switch for lint. */
|
/* LINTLIBRARY */
|
/* LINTLIBRARY */
|
|
|
|
|
#ifdef _HAVE_STDC
|
#ifdef _HAVE_STDC
|
|
|
#define PTR void *
|
#define PTR void *
|
#define PTRCONST void *CONST
|
#define PTRCONST void *CONST
|
#define LONG_DOUBLE long double
|
#define LONG_DOUBLE long double
|
|
|
#define AND ,
|
#define AND ,
|
#define NOARGS void
|
#define NOARGS void
|
#define CONST const
|
#define CONST const
|
#define VOLATILE volatile
|
#define VOLATILE volatile
|
#define SIGNED signed
|
#define SIGNED signed
|
#define DOTS , ...
|
#define DOTS , ...
|
|
|
#define EXFUN(name, proto) name proto
|
#define EXFUN(name, proto) name proto
|
#define DEFUN(name, arglist, args) name(args)
|
#define DEFUN(name, arglist, args) name(args)
|
#define DEFUN_VOID(name) name(NOARGS)
|
#define DEFUN_VOID(name) name(NOARGS)
|
|
|
#else /* Not ANSI C. */
|
#else /* Not ANSI C. */
|
|
|
#define PTR char *
|
#define PTR char *
|
#define PTRCONST PTR
|
#define PTRCONST PTR
|
#define LONG_DOUBLE double
|
#define LONG_DOUBLE double
|
|
|
#define AND ;
|
#define AND ;
|
#define NOARGS
|
#define NOARGS
|
#define CONST
|
#define CONST
|
#define VOLATILE
|
#define VOLATILE
|
#define SIGNED
|
#define SIGNED
|
#define DOTS
|
#define DOTS
|
|
|
#define const
|
#define const
|
|
|
#define EXFUN(name, proto) name()
|
#define EXFUN(name, proto) name()
|
#define DEFUN(name, arglist, args) name arglist args;
|
#define DEFUN(name, arglist, args) name arglist args;
|
#define DEFUN_VOID(name) name()
|
#define DEFUN_VOID(name) name()
|
|
|
#endif /* ANSI C. */
|
#endif /* ANSI C. */
|
|
|
|
|
#endif /* ansidecl.h */
|
#endif /* ansidecl.h */
|
|
|
