[erlang-questions] ets:match_delete
Anthony Ramine
nox@REDACTED
Tue Jun 7 19:26:15 CEST 2011
Le 7 juin 2011 à 19:15, Roberto Ostinelli a écrit :
> 2011/6/7 Anthony Ramine <nox@REDACTED>
>
> [{{'_','$1','_','_'},[{'>','$1',2}],[]}] should work. You put a list instead of a tuple for the match argument.
> By the way I didn't read the doc to figure it out, I just did ets:fun2ms(fun ({_,X,_,_}) when X > 2 -> X end),
> which is pretty good for figuring out how to write matchspecs.
>
> hi anthony,
>
> no this does not work.
>
> furthermore, i took the list format from the 2nd example provided in the docs:
> http://www.erlang.org/doc/apps/erts/match_spec.html#id71596
>
> thank you anyway :)
>
> r.
My bad then, ets:match_delete must behave differently than lookup then, because this works:
ets:test_ms({a, 3, b, c}, [{{'_', '$1', '_', '_'},[{'>', '$1', 2}],['it works!']}])
--
Anthony Ramine
Dev:Extend
http://dev-extend.eu
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