common/stdio/stdhdr.h

	stdhdr.h revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/***********************************************************************
*                                                                      *
*               This software is part of the ast package               *
*           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
*                      and is licensed under the                       *
*                  Common Public License, Version 1.0                  *
*                      by AT&T Knowledge Ventures                      *
*                                                                      *
*                A copy of the License is available at                 *
*            http://www.opensource.org/licenses/cpl1.0.txt             *
*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
*                                                                      *
*              Information and Software Systems Research               *
*                            AT&T Research                             *
*                           Florham Park NJ                            *
*                                                                      *
*                 Glenn Fowler <gsf@research.att.com>                  *
*                  David Korn <dgk@research.att.com>                   *
*                   Phong Vo <kpv@research.att.com>                    *
*                                                                      *
***********************************************************************/
#pragma prototyped

#ifndef _STDHDR_H
#define _STDHDR_H   1

#ifndef _NO_LARGEFILE64_SOURCE
#define _NO_LARGEFILE64_SOURCE  1
#endif
#undef  _LARGEFILE64_SOURCE

#define _ast_fseeko ______fseeko
#define _ast_ftello ______ftello
#include "sfhdr.h"
#undef  _ast_fseeko
#undef  _ast_ftello

#include "stdio.h"

#define SF_MB       010000
#define SF_WC       020000

#if _UWIN

#define STDIO_TRANSFER  1

typedef int (*Fun_f)();

typedef struct Funvec_s
{
    const char* name;
    Fun_f       vec[2];
} Funvec_t;

extern int  _stdfun(Sfio_t*, Funvec_t*);

#define STDIO_INT(p,n,t,f,a) \
    { \
        typedef t (*_s_f)f; \
        int     _i; \
        static Funvec_t _v = { n }; \
        if ((_i = _stdfun(p, &_v)) < 0) \
            return -1; \
        else if (_i > 0) \
            return ((_s_f)_v.vec[_i])a; \
    }

#define STDIO_PTR(p,n,t,f,a) \
    { \
        typedef t (*_s_f)f; \
        int     _i; \
        static Funvec_t _v = { n }; \
        if ((_i = _stdfun(p, &_v)) < 0) \
            return 0; \
        else if (_i > 0) \
            return ((_s_f)_v.vec[_i])a; \
    }

#define STDIO_VOID(p,n,t,f,a) \
    { \
        typedef t (*_s_f)f; \
        int     _i; \
        static Funvec_t _v = { n }; \
        if ((_i = _stdfun(p, &_v)) < 0) \
            return; \
        else if (_i > 0) \
        { \
            ((_s_f)_v.vec[_i])a; \
            return; \
        } \
    }

#else

#define STDIO_INT(p,n,t,f,a)
#define STDIO_PTR(p,n,t,f,a)
#define STDIO_VOID(p,n,t,f,a)

#endif

#define FWIDE(f,r) \
    do \
    { \
        if (fwide(f, 0) < 0) \
            return r; \
        f->bits |= SF_WC; \
    } while (0)

#ifdef __EXPORT__
#define extern  __EXPORT__
#endif

extern int      sfdcwide(Sfio_t*);

#endif