libXO-ification - Why - and is it a symptom of deeper issues?
NGie Cooper
yaneurabeya at gmail.com
Sun Nov 15 18:26:18 UTC 2015
> On Nov 15, 2015, at 10:14, Allan Jude <allanjude at freebsd.org> wrote:
…
> You can setup an atexit() call to call xo_finish automatically when the
> program exits. The original changes to uptime had a few other issues,
> which I fixed.
Programmers are lazy. Telling someone “you need to setup an atexit handler that calls xo_finish” will be met with teeth gnashing and complaints (I’ve had to deal with a bunch of people who complain that FreeBSD is not Linux at $work; I don’t have any interest in fighting developers over stuff like this).
> Yes, but, a typo in any change is likely to cause a problem. This is not
> a problem unique to libxo.
Yes, but there’s a big difference between a typo in !libxo with the meta language, and a typo in libxo. Typo in !libxo: typos visible, unless it was something silly like mis-spelling \n (which doesn’t seem to happen much); typo in libxo: xo_emit call is invalid (no output)/segfaults.
Fortunately libxo seems to support __printflike :).
Thanks,
-NGie
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