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Postings from September 2013
Hi Tony, We do use G_KEEPERR because we want to report error details. I did send a response to Jim - but the example I tried to create on Windows crashes on the call to CLEAR_ERRSV() and I don't know why. Regards, John. -----Original Message----- From: Tony Cook via RT [mailto:perlbug-followup@perl.org] Sent: 10 September 2013 02:46 To: john.unsworth@cp.net Subject: [perl #119617] PerlEmbed 5.14: sv_setsv(ERRSV, &PL_sv_undef); crashes on Linux On Thu Sep 05 04:18:28 2013, john.unsworth@cp.net wrote: <snip> > So it seems that the implementation of ERRSV has changed in that at 5.14 it > is not initially defined, hence I assume that sv_setsv(ERRSV, &PL_sv_undef); > was trying to set an undefined variable and thus causing the error. > The correct fix seems to be to change this to CLEAR_ERRSV(). Shouldn't > this be mentioned in the embed documentation? There is no mention at > all of how to reset the error variable. Why do you need to clear ERRSV? It should be cleared by eval_sv() or call_sv() on success (unless you use G_KEEPERR). While I think documenting CLEAR_ERRSV() is useful, I'm not sure where you'd need to use it outside the core. The example code Jim asked for would be useful. TonyThread Next