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What do the terms “CPU bound” and “I/O bound” mean?
...U (doing calculations). A program that computes new digits of π will typically be CPU-bound, it's just crunching numbers.
A program is I/O bound if it would go faster if the I/O subsystem was faster. Which exact I/O system is meant can vary; I typically associate it with disk, but of course networ...
ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...明、严格的测试以及微软官方的 技术支持。另外在用ATL开发COM组件的时候，更可以方便地利用正则库的巨大威力。
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ATL 正则表达式
.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo
...ewed the default.aspx page with the Firefox browser. When I check the net calls it has made, I see it making constant calls to:
...
Confused about Service vs Factory
...
All angular services are singletons:
Docs (see Services as singletons): https://docs.angularjs.org/guide/services
Lastly, it is important to realize that all Angular services are application singletons. This means that t...
Do sealed classes really offer performance Benefits?
...
The JITter will sometimes use non-virtual calls to methods in sealed classes since there is no way they can be extended further.
There are complex rules regarding calling type, virtual/nonvirtual, and I don't know them all so I can't really outline them for you, but ...
How do you properly determine the current script directory in Python?
...ing to get.
It's unusual to be executing a script with exec/execfile; normally you should be using the module infrastructure to load scripts. If you must use these methods, I suggest setting __file__ in the globals you pass to the script so it can read that filename.
There's no other way to get th...
Direct casting vs 'as' operator?
... tend to almost never use 2 since if something is not the right type, I usually expect an exception to occur. I have only seen a need for this return-null type of functionality with badly designed libraries which use error codes (e.g. return null = error, instead of using exceptions).
3 is not a ca...
Why is SQL Server 2008 Management Studio Intellisense not working?
...en to insanity trying to figure out why Intellisense just fails to work at all. The server I'm using is local and is 2008, the database is set to 2008 compatibility, Intellisense is on in every menu I can find, and yet no member list will pop up even with a CTRL-J.
...
ACE vs Boost vs POCO [closed]
... situation. The good things about POCO IMO:
Better thread library, especially a Active Method implementation. I also like the fact that you can set the thread priority.
More comprehensive network library than boost::asio. However boost::asio is also a very good library.
Includes functionality that...
Debugging in Clojure? [closed]
...
There's also dotrace, which allows you to look at the inputs and outputs of selected functions.
(use 'clojure.contrib.trace)
(defn fib[n] (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2)))))
(dotrace [fib] (fib 3))
produces the output:
TRACE t4425: (f...