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glibc/ansidecl.h
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/* Copyright (C) 1991 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library 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 1, or (at your option) | |
any later version. | |
The GNU C Library 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 the GNU C Library; see the file COPYING. If not, write to | |
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
/* ANSI and traditional C compatibility macros | |
ANSI C is assumed if __STDC__ is #defined. | |
Macro ANSI C definition Traditional C definition | |
----- ---- - ---------- ----------- - ---------- | |
PTR `void *' `char *' | |
LONG_DOUBLE `long double' `double' | |
CONST `const' `' | |
VOLATILE `volatile' `' | |
SIGNED `signed' `' | |
PTRCONST `void *const' `char *' | |
DEFUN(name, arglist, args) | |
Defines function NAME. | |
ARGLIST lists the arguments, separated by commas and enclosed in | |
parentheses. ARGLIST becomes the argument list in traditional C. | |
ARGS list the arguments with their types. It becomes a prototype in | |
ANSI C, and the type declarations in traditional C. Arguments should | |
be separated with `AND'. For functions with a variable number of | |
arguments, the last thing listed should be `DOTS'. | |
DEFUN_VOID(name) | |
Defines a function NAME, which takes no arguments. | |
EXFUN(name, prototype) | |
Is used in an external function declaration. | |
In ANSI C it is `NAMEPROTOTYPE' (so PROTOTYPE should be enclosed in | |
parentheses). In traditional C it is `NAME()'. | |
For a function that takes no arguments, PROTOTYPE should be `(NOARGS)'. | |
For example: | |
extern int EXFUN(printf, (CONST char *format DOTS)); | |
int DEFUN(fprintf, (stream, format), | |
FILE *stream AND CONST char *format DOTS) { ... } | |
void DEFUN_VOID(abort) { ... } | |
*/ | |
#ifndef _ANSIDECL_H | |
#define _ANSIDECL_H 1 | |
/* Every source file includes this file, | |
so they will all get the switch for lint. */ | |
/* LINTLIBRARY */ | |
#ifdef __STDC__ | |
#define PTR void * | |
#define PTRCONST void *CONST | |
#define LONG_DOUBLE long double | |
#define AND , | |
#define NOARGS void | |
#define CONST const | |
#define VOLATILE volatile | |
#define SIGNED signed | |
#define DOTS , ... | |
#define EXFUN(name, proto) name proto | |
#define DEFUN(name, arglist, args) name(args) | |
#define DEFUN_VOID(name) name(NOARGS) | |
#else /* Not ANSI C. */ | |
#define PTR char * | |
#define PTRCONST PTR | |
#define LONG_DOUBLE double | |
#define AND ; | |
#define NOARGS | |
#define CONST | |
#define VOLATILE | |
#define SIGNED | |
#define DOTS | |
#define EXFUN(name, proto) name() | |
#define DEFUN(name, arglist, args) name arglist args; | |
#define DEFUN_VOID(name) name() | |
#endif /* ANSI C. */ | |
#endif /* ansidecl.h */ |