<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>True, I guess I was a bit sloppy when I tried it in different OTP versions.</div><div>It even exists in R13B… :)</div><div><br></div><div>A slightly slower linear search on process dictionaries, but more flexible, and still faster than searching a gb_trees or dict structure, is:</div><div><br></div><div><div>select_keys(V) -></div><div> MS = ets:match_spec_compile([{{'$1',V}, [], ['$1']}]),</div><div> ets:match_spec_run(get(), MS).</div></div><div><br></div><div>About the same speed as doing a list comprehension using get() as generator, and faster than putting the same data in ets and using ets:select/2.</div><div><br></div><div>BR,</div><div>Ulf</div><br><div><div>On 6 Aug 2013, at 15:47, Lukas Larsson <<a href="mailto:lukas@erlang-solutions.com">lukas@erlang-solutions.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Aug 6, 2013 at 3:35 PM, Ulf Wiger <span dir="ltr"><<a href="mailto:ulf@feuerlabs.com" target="_blank">ulf@feuerlabs.com</a>></span> wrote:<br>
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Can anyone shed some light on why it was introduced in the first place?<br></blockquote><div><br></div><div>Not sure from where you got that it was added in R15B, from what I can gather it has always been there, at least since R4B[1]. It has not been overly used though it seems :)<br>
<br>[1]: <a href="http://www.erlang.org/documentation/doc-4.7.3/lib/kernel-2.1.1/doc/html/erlang.html">http://www.erlang.org/documentation/doc-4.7.3/lib/kernel-2.1.1/doc/html/erlang.html</a><br></div></div></div></div>
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<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; "><div><div>Ulf Wiger, Co-founder & Developer Advocate, Feuerlabs Inc.</div><div><a href="http://feuerlabs.com">http://feuerlabs.com</a></div></div><div><br></div></span><br class="Apple-interchange-newline">
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