大约有 45,000 项符合查询结果(耗时:0.0530秒) [XML]

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How is the fork/joi<em>nem> framework better tha<em>nem> a thread pool?

...i<em>nem> the begi<em>nem><em>nem>i<em>nem>g, se<em>nem>di<em>nem>g them to a cached thread pool (from Executors ) <em>a<em>nem>dem> waiti<em>nem>g for each task to complete? I fail to see how usi<em>nem>g the fork/joi<em>nem> abstractio<em>nem> simplifies the problem or makes the solutio<em>nem> more efficie<em>nem>t from what we've had for years <em>nem>ow. ...
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Fast way of cou<em>nem>ti<em>nem>g <em>nem>o<em>nem>-zero bits i<em>nem> p<em>osem>itive i<em>nem>teger

...1") is the fastest I could fi<em>nem>d i<em>nem> pure Pytho<em>nem>. I tried adapti<em>nem>g Óscar's <em>a<em>nem>dem> Adam's solutio<em>nem>s to process the i<em>nem>teger i<em>nem> 64-bit <em>a<em>nem>dem> 32-bit chu<em>nem>ks, respectively. Both were at least te<em>nem> times slower tha<em>nem> bi<em>nem>(<em>nem>).cou<em>nem>t("1") (the 32-bit versio<em>nem> took about half agai<em>nem> as much time). O<em>nem> the other h<em>a<em>nem>dem>, gm...
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Base64 le<em>nem>gth calculatio<em>nem>?

... * 6 = 24 bits = 3 bytes. So you <em>nem>eed 4*(<em>nem>/3) chars to represe<em>nem>t <em>nem> bytes, <em>a<em>nem>dem> this <em>nem>eeds to be rou<em>nem>ded up to a multiple of 4. The <em>nem>umber of u<em>nem>used paddi<em>nem>g chars resulti<em>nem>g from the rou<em>nem>di<em>nem>g up to a multiple of 4 will obviously be 0, 1, 2 or 3. ...
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What are the differe<em>nem>ces betwee<em>nem> Clojure, Scheme/Racket <em>a<em>nem>dem> Commo<em>nem> Lisp?

...ew, if p<em>osem>sible, coveri<em>nem>g topics such as sy<em>nem>tax, characteristics, features <em>a<em>nem>dem> resources. 4 A<em>nem>swers ...
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Extracti<em>nem>g the last <em>nem> characters from a stri<em>nem>g i<em>nem> R

...se R, but it's straight-forward to make a fu<em>nem>ctio<em>nem> to do this usi<em>nem>g substr <em>a<em>nem>dem> <em>nem>char: x &lt;- "some text i<em>nem> a stri<em>nem>g" substrRight &lt;- fu<em>nem>ctio<em>nem>(x, <em>nem>){ substr(x, <em>nem>char(x)-<em>nem>+1, <em>nem>char(x)) } substrRight(x, 6) [1] "stri<em>nem>g" substrRight(x, 8) [1] "a stri<em>nem>g" This is vectorised, as @mdsum<em>nem>er poi<em>nem>t...
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I<em>nem> Vim is there a way to delete without putti<em>nem>g text i<em>nem> the register?

... At first I thought this comm<em>a<em>nem>dem> was <em>nem>ot worki<em>nem>g properly. The<em>nem> I realized I was usi<em>nem>g a "dead keys" versio<em>nem> of the america<em>nem> keyboard. With this keyboard layout I have to type "&lt;space&gt;_d. The space is <em>nem>eeded to actually type the ". ...
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Pagi<em>nem>g with Oracle

... as familiar with Oracle as I would like to be. I have some 250k records, <em>a<em>nem>dem> I wa<em>nem>t to display them 100 per page. Curre<em>nem>tly I have o<em>nem>e stored procedure which retrieves all quarter of a millio<em>nem> records to a dataset usi<em>nem>g a data adapter, <em>a<em>nem>dem> dataset, <em>a<em>nem>dem> the dataadapter.Fill(dataset) method o<em>nem> the ...
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Algorithm to ge<em>nem>erate all p<em>osem>sible permutatio<em>nem>s of a list?

... left to right, all the permutatio<em>nem>s of the remai<em>nem>i<em>nem>g items are ge<em>nem>erated (<em>a<em>nem>dem> each o<em>nem>e is added with the curre<em>nem>t eleme<em>nem>ts). This ca<em>nem> be do<em>nem>e recursively (or iteratively if you like pai<em>nem>) u<em>nem>til the last item is reached at which poi<em>nem>t there is o<em>nem>ly o<em>nem>e p<em>osem>sible order. So with the list [1,2,3,4] all ...
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How ca<em>nem> I select r<em>a<em>nem>dem>om files from a directory i<em>nem> bash?

I have a directory with about 2000 files. How ca<em>nem> I select a r<em>a<em>nem>dem>om sample of <em>Nem> files through usi<em>nem>g either a bash script or a list of piped comm<em>a<em>nem>dem>s? ...
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How do I move a si<em>nem>gle folder from o<em>nem>e Subversio<em>nem> rep<em>osem>itory to a<em>nem>other rep<em>osem>itory?

...t rep<em>osem>itory, filter it to o<em>nem>ly i<em>nem>clude i<em>nem>formatio<em>nem> about the docs folder, <em>a<em>nem>dem> load it i<em>nem>to the other rep<em>osem>itory. Would be somethi<em>nem>g like this: sv<em>nem>admi<em>nem> dump /sv<em>nem>/old_rep<em>osem> &gt; ./rep<em>osem>itory.dump sv<em>nem>dumpfilter i<em>nem>clude path/to/docs --drop-empty-revs --re<em>nem>umber-revs --preserve-revprops &lt; ./rep<em>osem>i...