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Postings from June 2011
There are a whole bunch of numeric comparison ops, that have very similar,
but quite complex bodies, to cope with IV verses UV verses NV etc.
I was wondering whether it would be beneficial to just replace them all
with thin wrappers around a new function, do_ncmp(), which does
essentially what pp_ncmp() does now.
So for example, pp_eq, would end up looking something like:
PP(pp_eq)
{
dVAR; dSP;
int res;
tryAMAGICbin_MG(eq_amg, AMGf_set|AMGf_numeric);
res = do_cmp(TOPs, POPs);
SETs(boolSV(res == 0));
}
Whether the slight inefficiency of using a more general function would be
matched by the code (and thus cache) reuse, I have no idea. I also don't
yet know whether the specific ops handle edge cases more thoroughly than
the more general pp_cmp.
--
Lady Nancy Astor: If you were my husband, I would flavour your coffee
with poison.
Churchill: Madam - if I were your husband, I would drink it.
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