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No ConcurrentList in .Net 4.0?

...Add and provide random read-only access by index (but no Insert, RemoveAt, etc., and also no random write access). This was the goal of my ConcurrentList<T> implementation. But when I tested its performance in multithreaded scenarios, I found that simply synchronizing adds to a List<T> ...
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Where can I learn how to write C code to speed up slow R functions? [closed]

...simpler code, less boilerplate, no PROTECT/UNPROTECT, no memory management etc pp. Doug Bates just yesterday stated that he finds C++ and Rcpp to be much more like writing R than writing C++. YMMV and all that. share ...
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How to include package data with setuptools/distribute?

... ('bitmaps', ['bm/b1.gif', 'bm/b2.gif']), ('/opt/local/myproject/etc', ['myproject/config/settings.py', 'myproject/config/other_settings.special']), ('/opt/local/myproject/etc', [os.path.join('myproject/config', 'cool.huh')]), # ('/opt/local/myproject/etc', [os.path.join('m...
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oracle10g 网址收藏 - ORACLE - 清泛IT论坛,有思想、有深度

载OTN上这些软件,你需要一个OTN免费帐号,不过如果通过迅雷进行下载,就不用登陆OTN了: Oracle Database 10g Release 2 (10.2.0.1.0) Enterprise/Standard Edition for Microsoft Windows (32-bit) http://download.oracle.com/otn/nt/oracle10g/10201/10201_database_win32.z...
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How can I add reflection to a C++ application?

...trospect a C++ class for its name, contents (i.e. members and their types) etc. I'm talking native C++ here, not managed C++, which has reflection. I realise C++ supplies some limited information using RTTI. Which additional libraries (or other techniques) could supply this information? ...
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How to make MySQL handle UTF-8 properly

... It didn't work in my case but I created file my.cf in /etc with given content anyway. I used create table my_name(field_name varchar(25) character set utf8); – Marek Bar Jul 9 '12 at 11:43 ...
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Add a new column to existing table in a migration

...s All of the commands for making things (controllers, models, migrations etc) have been moved under the make: command. php artisan migrate is still the same though. share | improve this answer ...
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Rails raw SQL example

...s.rubyonrails.org/active_record_querying.html and in associations, scopes, etc. You could probably construct the same SQL with ActiveRecord relational queries and can do cool things with ARel as Ernie mentions in http://erniemiller.org/2010/03/28/advanced-activerecord-3-queries-with-arel/. And, of c...
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Why does Python code use len() function instead of a length method?

... len, str, etc. can be used with higher-order functions like map, reduce, and filter without the need to define a function or lambda just to call a method. Not everything revolves around OOP, even in Python. – Evic...
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libcurl使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...了source 2.编译。解压后进入curl目录,直接执行 make all 就行。 3.等待编译结束后,可以查看目录结构。 curl/include/curl : 头文件目录 (一般只要包含curl.h即可) curl/lib/.lib/ : lib文件目录(有libcurl.a和li...