Re^2: sv_derived_from gives a confsing result

Thanks, Rob. Your code, plus this:

warn("not an object %s\n",(char *)SvPV_nolen(ST(0)));
[download]

Revealed that ST(0) was '1', leading to the discovery that despite coding that looked like C++, Perl was not treating it as such. Seems to be related to the fact that there was no new() method.

Sigh!

Comment on Re^2: sv_derived_from gives a confsing result Download Code

Replies are listed 'Best First'.
Re^3: sv_derived_from gives a confsing result by ikegami (Patriarch) on Mar 29, 2011 at 08:52 UTC
`Audio::TagLib::ID3v2::Frame::size(1)` would be just as wrong in C++. The C++ equivalent of the correct code would be «`frame->size()`».	[reply] [d/l] [select]
Re^3: sv_derived_from gives a confsing result by syphilis (Archbishop) on Mar 29, 2011 at 10:43 UTC
Seems to be related to the fact that there was no new() method Sounds feasible. The method doesn't need to be called "new" (with C, at least), but if `sv_isobject(sv)` is to return true, then the reference (sv) does need to have been blessed into some package ... which is what "new" normally does, of course. Cheers, Rob	[reply] [d/l]