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Annotation of gforth/engine/ansidecl.h, revision 1.1

1.1     ! anton       1: /* Copyright (C) 1991 Free Software Foundation, Inc.
        !             2: This file is part of the GNU C Library.
        !             3: 
        !             4: The GNU C Library is free software; you can redistribute it and/or modify
        !             5: it under the terms of the GNU General Public License as published by
        !             6: the Free Software Foundation; either version 1, or (at your option)
        !             7: any later version.
        !             8: 
        !             9: The GNU C Library is distributed in the hope that it will be useful,
        !            10: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            11: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            12: GNU General Public License for more details.
        !            13: 
        !            14: You should have received a copy of the GNU General Public License
        !            15: along with the GNU C Library; see the file COPYING.  If not, write to
        !            16: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            17: 
        !            18: /* ANSI and traditional C compatibility macros
        !            19: 
        !            20:    ANSI C is assumed if __STDC__ is #defined.
        !            21: 
        !            22:    Macro       ANSI C definition       Traditional C definition
        !            23:    -----       ---- - ----------       ----------- - ----------
        !            24:    PTR         `void *'                `char *'
        !            25:    LONG_DOUBLE `long double'           `double'
        !            26:    CONST       `const'                 `'
        !            27:    VOLATILE    `volatile'              `'
        !            28:    SIGNED      `signed'                `'
        !            29:    PTRCONST    `void *const'           `char *'
        !            30: 
        !            31:    DEFUN(name, arglist, args)
        !            32: 
        !            33:        Defines function NAME.
        !            34: 
        !            35:        ARGLIST lists the arguments, separated by commas and enclosed in
        !            36:        parentheses.  ARGLIST becomes the argument list in traditional C.
        !            37: 
        !            38:        ARGS list the arguments with their types.  It becomes a prototype in
        !            39:        ANSI C, and the type declarations in traditional C.  Arguments should
        !            40:        be separated with `AND'.  For functions with a variable number of
        !            41:        arguments, the last thing listed should be `DOTS'.
        !            42: 
        !            43:    DEFUN_VOID(name)
        !            44: 
        !            45:        Defines a function NAME, which takes no arguments.
        !            46: 
        !            47:    EXFUN(name, prototype)
        !            48: 
        !            49:        Is used in an external function declaration.
        !            50:        In ANSI C it is `NAMEPROTOTYPE' (so PROTOTYPE should be enclosed in
        !            51:        parentheses).  In traditional C it is `NAME()'.
        !            52:        For a function that takes no arguments, PROTOTYPE should be `(NOARGS)'.
        !            53: 
        !            54:     For example:
        !            55:        extern int EXFUN(printf, (CONST char *format DOTS));
        !            56:        int DEFUN(fprintf, (stream, format),
        !            57:                  FILE *stream AND CONST char *format DOTS) { ... }
        !            58:        void DEFUN_VOID(abort) { ... }
        !            59: */
        !            60: 
        !            61: #ifndef        _ANSIDECL_H
        !            62: 
        !            63: #define        _ANSIDECL_H     1
        !            64: 
        !            65: 
        !            66: /* Every source file includes this file,
        !            67:    so they will all get the switch for lint.  */
        !            68: /* LINTLIBRARY */
        !            69: 
        !            70: 
        !            71: #ifdef __STDC__
        !            72: 
        !            73: #define        PTR             void *
        !            74: #define        PTRCONST        void *CONST
        !            75: #define        LONG_DOUBLE     long double
        !            76: 
        !            77: #define        AND             ,
        !            78: #define        NOARGS          void
        !            79: #define        CONST           const
        !            80: #define        VOLATILE        volatile
        !            81: #define        SIGNED          signed
        !            82: #define        DOTS            , ...
        !            83: 
        !            84: #define        EXFUN(name, proto)              name proto
        !            85: #define        DEFUN(name, arglist, args)      name(args)
        !            86: #define        DEFUN_VOID(name)                name(NOARGS)
        !            87: 
        !            88: #else  /* Not ANSI C.  */
        !            89: 
        !            90: #define        PTR             char *
        !            91: #define        PTRCONST        PTR
        !            92: #define        LONG_DOUBLE     double
        !            93: 
        !            94: #define        AND             ;
        !            95: #define        NOARGS
        !            96: #define        CONST
        !            97: #define        VOLATILE
        !            98: #define        SIGNED
        !            99: #define        DOTS
        !           100: 
        !           101: #define        EXFUN(name, proto)              name()
        !           102: #define        DEFUN(name, arglist, args)      name arglist args;
        !           103: #define        DEFUN_VOID(name)                name()
        !           104: 
        !           105: #endif /* ANSI C.  */
        !           106: 
        !           107: 
        !           108: #endif /* ansidecl.h   */