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When to use enumerateObjectsUsingBlock vs. for

...o use and comes more naturally in the context. While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting: enumerateObjectsUsingBlock: will be as fast or faster than fast enumeration (for(... in ......
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Difference between string and char[] types in C++

I know a little C and now I'm taking a look at C++. I'm used to char arrays for dealing with C strings, but while I look at C++ code I see there are examples using both string type and char arrays: ...
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Using getResources() in non-activity class

I am trying to use getResources method in a non-activity class. How do I get the reference to the "resources" object so that I can access the xml file stored under resources folder? ...
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What is this 'Waiting for Background operation' in Visual Studio 2012?

...assionaly, but fairly often, for no apparent reason, VS 2012 will lock up with a dialogue that says, "Waiting for a background operation to finish". E.g. this may happen during a plain old code edit, not on explicitly invoking any IDE command. ...
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Can I get Memcached running on a Windows (x64) 64bit environment?

...e know IF , WHEN or HOW I can get Memcached running on a Windows 64bit environment? 13 Answers ...
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Behaviour of final static method

I have been playing around with modifiers with static method and came across a weird behaviour. 7 Answers ...
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Traversing text in Insert mode

... You seem to misuse vim, but that's likely due to not being very familiar with it. The right way is to press Esc, go where you want to do a small correction, fix it, go back and keep editing. It is effective because Vim has much more movements than usual character forward/backward/up/down. After ...
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Why doesn't Java Map extend Collection?

...t mappings are not collections and collections are not mappings. Thus, it makes little sense for Map to extend the Collection interface (or vice versa). If a Map is a Collection, what are the elements? The only reasonable answer is "Key-value pairs", but this provides a very lim...
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How do you set, clear, and toggle a single bit?

How do you set, clear, and toggle a bit? 30 Answers 30 ...
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In Python how should I test if a variable is None, True or False

...follow | edited Oct 14 '15 at 20:13 answered Jan 7 '10 at 13:46 ...