Nicholas Clark wrote: > > I'm proposing an API like this: > > UV > Perl_grok_hex(pTHX_ char *start, STRLEN *len, I32 *flags, NV *result) Funny you should ask that ;-) I was just looking at a function like this. (And I was trying to figure out what 'retlen' was in Perl_scan_hex.) You have my vote.