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Message-Id: <200008161941.AA01020@ha.bekkoame.ne.jp>
Date: Thu, 17 Aug 2000 04:41:29 +0900
To: mingw32 AT egroups DOT com, gcc AT gcc DOT gnu DOT org, cygwin AT sourceware DOT cygnus DOT com
Subject: setvbuf bug (MINGW32)
From: "S.Yoshida" <vzy03312 AT ha DOT bekkoame DOT ne DOT jp>
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good news.


#if 0 /* from mingw using crtdll.dll */

/*
 * The three possible buffering mode (nMode) values for setvbuf.
 * NOTE: _IOFBF works, but _IOLBF seems to work like unbuffered...
 * maybe I'm testing it wrong?
 */

#define	_IOFBF	0	/* fully buffered */
#define	_IOLBF	1	/* line buffered */
#define	_IONBF	2	/* unbuffered */

#else /* from lccwin32 using crtdll.dll */

#define _IOFBF		0x0000
#define _IOLBF		0x0040
#define _IONBF		0x0004
#endif

 /*
  * I found these problems in following case
  */

void autoflush( FILE *fp )
{
    setvbuf( fp, NULL, _IONBF, 0 );
}

void gui_emulate_stderr( void )
{
    CreatePipe .....

    autoflush( w_pipout );
    autoflush( w_piperr );
}


Regards,
S.Yoshida vzy03312 AT ha DOT bekkoame DOT ne DOT jp

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