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From:	Glen Coakley <gcoakley AT mqsoftware DOT com>
To:	cygwin AT cygwin DOT com
Subject:	RE: Buffered IO curiosity effects non-CYGWIN programs.
Date:	Tue, 24 Jul 2001 09:14:58 -0500
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.5.2653.19)

Are you certain this is not a feature of the terminal system in Cygwin?
It would be my bet that it does buffering by default and cmd.exe (though it
is undoubtably designed and written so well, ahem!) does not.

________________________________
Glen Coakley, Sr. Software Engineer
MQSoftware Inc., (763) 543-4845
"Tinkero ergo sum." -- Chuck Murcko


> -----Original Message-----
> From: Ed Bradford [mailto:egb AT us DOT ibm DOT com]
> Sent: Tuesday, July 24, 2001 9:07 AM
> To: cygwin AT cygwin DOT com
> Subject: Buffered IO curiosity effects non-CYGWIN programs.
> 
> 
> There were no replys to my question about buffered IO.
> 
> Write a 14 line program reading lines from stdin and printing them to
> stdout. Compile with Microsoft CL.exe. Run the program from 
> bash and it
> runs as if buffering were turned on. It doesn't recognize the 
> console as an
> interactive output requiring immediate flushing. Run the very 
> same program
> from cmd.exe and it works correctly.
> 
> This is a bug in something because it effects programs that are not
> compiled with CYGWIN. Has anyone seen this problem and is 
> there any type of
> resolution?
> 
> Thank you.
> Ed Bradford
> 
> #include <windows.h>
> #include <stdio.h>
> main()
> {
>     char buf[128];
> 
>     while(fgets(buf,sizeof(buf),stdin)) {
>         buf[127] = 0;
>         printf("%s\n",buf);
>         if(buf[0] == 'q')
>             break;
>     }
>     return 0;
> }
> 
> 
> Your Windows 2000 Arborist and Linux Performance Comparisonist
> T/L 589-4410; Outside: 1-919-993-4410
> egb AT us DOT ibm DOT com
> 
> 
> 
> 
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