Date: Sun, 23 Mar 2014 18:30:01 GMT From: Jilles Tjoelker <jilles@stack.nl> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/187728: [patch] bc(1) should print error message to stderr Message-ID: <201403231830.s2NIU1d9076333@freefall.freebsd.org>
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The following reply was made to PR bin/187728; it has been noted by GNATS. From: Jilles Tjoelker <jilles@stack.nl> To: bug-followup@FreeBSD.org, ksmakoto@dd.iij4u.or.jp Cc: Subject: Re: bin/187728: [patch] bc(1) should print error message to stderr Date: Sun, 23 Mar 2014 19:20:25 +0100 In PR bin/187728, you wrote: > bc(1) should prints error message to stderr. POSIX seems to require this in interactive mode; in non-interactive mode, invalid input causes undefined behaviour. Note that the patch changes more than just the destination of the error message. The code in the repository prints the error message if and when dc reaches the point of the error, rather than immediately when the error is detected in the patched version. Since the patched version is simpler, it seems that the original code may be deliberately written that way. -- Jilles Tjoelker
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