aha! The macro system doesn't work well for vararg functions, so Perl_croak(aTHX_ ...) is more efficient than croak(...).

#define PERL_NO_GET_CONTEXT should avoid some accidental inefficiencies (by failing to compile on some configs, I believe).

I had forgotten about perlguts (or rather, I was confusing it with perlhack).

In reply to Re: XS: THX questions by ikegami
in thread XS: THX questions by ikegami

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