X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=3.5 required=5.0 tests=AWL,BAYES_00,BOTNET,RCVD_IN_DNSWL_NONE X-Spam-Check-By: sourceware.org Message-id: <4EE2B978.8080702@cygwin.com> Date: Fri, 09 Dec 2011 20:44:24 -0500 From: "Larry Hall (Cygwin)" Reply-to: cygwin AT cygwin DOT com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: stdout output missing, but redirecting works References: <4EE27335 DOT 9070106 AT cygwin DOT com> In-reply-to: Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7bit Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On 12/9/2011 7:12 PM, Brian Craft wrote: > On Fri, Dec 9, 2011 at 12:44 PM, Larry Hall (Cygwin) wrote: >> On 12/9/2011 2:47 PM, Brian Craft wrote: >>> >>> I compiled a program yesterday which output some lines to stdout. It >>> appeared to be working. Running it today, I get nothing on stdout. >>> However, if I redirect stdout to a file, the correct output appears in >>> the file. E.g. >>> >>> # no output >>> ./foo >>> # "hello world" in bar >>> ./foo> bar >>> >>> >>> In between yesterday and today, I've rebooted and run rebaseall, so >>> perhaps one of those is responsible for the change. >>> >>> Any suggestions? >> >> >> Sounds like buffering to me. Is this program compiled with Cygwin's gcc >> or something else? What kind of terminal are you running it in? Same one >> as yesterday? > > Cygwin's g++. The default cygwin terminal. > > Another bit of data: if I explicitly redirect the output to /dev/tty0, > I also get no output. E.g. > > # outputs "hello" > echo hello> /dev/tty0 > # no output > ./foo> /dev/tty0 Then my next WAG is BLODA - . If that's not it, I recommend a full report - . -- Larry _____________________________________________________________________ A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting annoying in email? -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple