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C++简练易用的线程池(threadpool)及上下文隔离的无锁线程池(isolated_threa...

...易用的线程池(threadpool)及上下文隔离的无锁线程池(isolated_threadpool)完整实现本文主要介绍两种C++线程池模型完整代码,经过实战考验的,效率已极致优化的代码,可直接用于实际项目开发。1、C++简练易用的线程池(threadpool) 完整...
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How JavaScript closures are garbage collected

...e expected behavior. From Mozilla's Memory management page: "As of 2012, all modern browsers ship a mark-and-sweep garbage-collector." "Limitation: objects need to be made explicitly unreachable". In your examples where it fails some is still reachable in the closure. I tried two ways to make it...
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What is the fastest way to compute sin and cos together?

.... If you need strong optimization, perhaps you should use it. Here is a small example: http://home.broadpark.no/~alein/fsincos.html Here is another example (for MSVC): http://www.codeguru.com/forum/showthread.php?t=328669 Here is yet another example (with gcc): http://www.allegro.cc/forums/thread...
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Why unsigned integer is not available in PostgreSQL?

I came across this post ( What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL? ) and realized that PostgreSQL does not support unsigned integer. ...
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Passing base64 encoded strings in URL

... en.wikipedia.org/wiki/Base64#URL_applications — it says clearly that escaping ‘makes the string unnecessarily longer’ and mentions the alternate charset variant. – Michał Górny Sep 3 '09 at 23:02 ...
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Regex Named Groups in Java

...> TEST matcher.name(1) ==> login Replace matcher.replaceAll("aaaaa_$1_sssss_$2____") ==> aaaaa_TEST_sssss_123____ matcher.replaceAll("aaaaa_${login}_sssss_${id}____") ==> aaaaa_TEST_sssss_123____ (extract from the implementation) public final class Pattern implements java.io...
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How to read embedded resource text file

...rn it as a string? My current script uses a Windows form and textbox that allows the user to find and replace text in a text file that is not embedded. ...
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How do I calculate tables size in Oracle

Being used to (and potentially spoiled by) MSSQL, I'm wondering how I can get at tables size in Oracle 10g. I have googled it so I'm now aware that I may not have as easy an option as sp_spaceused. Still the potential answers I got are most of the time outdated or don't work. Probably because I'm no...
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When is -XAllowAmbiguousTypes appropriate?

... should be able to follow functional dependencies in order to disambiguate all the other types used in the context, namely sup and fi. And indeed, the f -> internal functional dependency in SyntacticN uses our f to disambiguate our fi, and thereafter the f -> sig sym functional dependency in A...
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sqlalchemy unique across multiple columns

... declares those in the table definition, or if using declarative as in the __table_args__: # version1: table definition mytable = Table('mytable', meta, # ... Column('customer_id', Integer, ForeignKey('customers.customer_id')), Column('location_code', Unicode(10)), UniqueConstraint...