大约有 4,900 项符合查询结果(耗时:0.0185秒) [XML]

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FixedThreadPool vs CachedThreadPool: the lesser of two evils

...rogram that spawns threads (~5-150) which perform a bunch of tasks. Originally, I used a FixedThreadPool because this similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (seve...
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No ConcurrentList in .Net 4.0?

I was thrilled to see the new System.Collections.Concurrent namespace in .Net 4.0, quite nice! I've seen ConcurrentDictionary , ConcurrentQueue , ConcurrentStack , ConcurrentBag and BlockingCollection . ...
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Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie

It looks like the launchd.conf does not load my environment variable anymore. Has anyone else noticed that? 9 Answers ...
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How to append rows to an R data frame

I have looked around StackOverflow, but I cannot find a solution specific to my problem, which involves appending rows to an R data frame. ...
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Pointer expressions: *ptr++, *++ptr and ++*ptr

Recently I have come across this problem which I am unable to understand by myself. 10 Answers ...
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Detach (move) subdirectory into separate Git repository

... of subdirectories. Now I have found that one of the subdirectories is unrelated to the other and should be detached to a separate repository. ...
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Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”

What is a good algorithm to determine the "difficulty" of a word for a hangman game, so that the game can select words to match a specified difficulty level? ...
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What is more efficient? Using pow to square or just multiply it with itself?

... Active Oldest Votes ...
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How can I extract embedded fonts from a PDF as valid font files?

I'm aware of the pdftk.exe utility that can indicate which fonts are used by a PDF, and wether they are embedded or not. ...
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What are the use cases for selecting CHAR over VARCHAR in SQL?

I realize that CHAR is recommended if all my values are fixed-width. But, so what? Why not just pick VARCHAR for all text fields just to be safe. ...