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Most used parts of Boost [closed]

...filesystem thread lexical_cast program_options (just brilliant!) test (for all my unit testing needs). String algorithms String tokenizer format (type-safe printf style string formatting) smart ptrs Boost was a massive help when I wrote my first cross-platform app - without it I really would have ...
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Using app.configure in express

... to the doc. In your example, the two piece of codes have no difference at all. http://expressjs.com/api.html#app.configure Update 2015: @IlanFrumer points out that app.configure is removed in Express 4.x. If you followed some outdated tutorials and wondering why it didn't work, You should remove ...
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How to return only the Date from a SQL Server DateTime datatype

...art using your method too. Thankyou @aku – Jim Birchall Sep 24 '08 at 8:25 38 @pilavdzice Settin...
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fancybox - d.onCleanup is not a function

...ut of curiosity, why is this? It doesn't seem to work if the css files are all combined into one either... – SeanJA Apr 30 '11 at 4:59 3 ...
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How do I change column default value in PostgreSQL?

... name, only that table is altered. If ONLY is not specified, the table and all its descendant tables (if any) are altered" postgresql.org/docs/9.3/static/sql-altertable.html – Yodan Tauber Dec 20 '15 at 8:41 ...
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C multi-line macro: do/while(0) vs scope block [duplicate]

...use of function-style macros uniform with the use of ordinary functions in all contexts. Consider the following code sketch if (<condition>) foo(a); else bar(a); where 'foo' and 'bar' are ordinary functions. Now imagine that you'd like to replace function 'foo' with a macro of the abov...
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Reducing Django Memory Usage. Low hanging fruit?

...) Then point your browser at http://domain/_dozer/index to see a list of all your memory allocations. I'll also just add my voice of support for mod_wsgi. It makes a world of difference in terms of performance and memory usage over mod_python. Graham Dumpleton's support for mod_wsgi is outstand...
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Android SQLite: nullColumnHack parameter in insert/replace methods

... Let's suppose you have a table named foo where all columns either allow NULL values or have defaults. In some SQL implementations, this would be valid SQL: INSERT INTO foo; That's not valid in SQLite. You have to have at least one column specified: INSERT INTO foo (s...
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How important is the order of columns in indexes?

... 3, the optimizer wouldn't even use the index, because it's not helpful at all in narrowing down the result sets. Anytime you're in a query, narrowing down the number of results to deal with before the next step means better performance. Since the index is also stored this way, there's no backtrac...
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做了个购物清单App后,我才真正搞懂App Inventor 2的变量 - App应用开发 - ...

...局部变量"遮蔽"。 解法:全局变量统一加前缀 g_(如 g_count),或用描述性名称(如 totalItemCount)。 坑3:初始化顺序 在 Screen.Initialize 里先用了变量,再初始化它。变量还没创建就被读取,返回空值。 解法:所有...