in reply to Re: Re: Passing a very large string by reference to a c library
in thread Passing a very large string by reference to a c library
I've got it to work with:
unsigned long find_index (key, data) unsigned long key SV * data INIT: STRLEN datalen; char * s; if ((!SvROK(data)) || (SvTYPE(SvRV(data)) != SVt_PV)) { XSRETURN_UNDEF; } s = SvPV(SvRV(data), datalen); CODE: RETVAL = find_index (key, s, datalen); OUTPUT: RETVAL
I'm still not sure if SvPV copies its internal data somewhere or just returns a pointer to it.
Comments please
dino
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Re: Re: Re: Re: Passing a very large string by reference to a c library
by dino (Sexton) on Jul 12, 2001 at 20:03 UTC |
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Seekers of Perl Wisdom