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Understanding checked vs unchecked exceptions in Java

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How to remove all subviews of a view in Swift?

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How to save picture to iPhone photo library?

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How can I programmatically create a new cron job?

... It's always worked well for me. You should consider a slightly more sophisticated script that can do three things. Append a crontab line; assuring that it didn't exist. Adding when it already exists is bad. Remove the crontab line. Perhaps only warning if it didn't exist. A combinati...
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C++ Singleton design pattern

...s always alive (less overhead than Schwarz counter). Global variables have more issues with initialization order (across compilation units) as you not force an order. The advantage of this model is 1) lazy initialization. 2) Ability to enforce an order (Schwarz helps but is uglier). Yep get_instanc...
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“’” showing on page instead of “ ' ”

...orm submitted values which are incorrectly encoded/decoded. Here are some more links to learn more about the problem: The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!), from our own Joel. Unicode - How to get the character...
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How can I use NSError in my iPhone App?

...because we set a value for NSLocalizedDescriptionKey. The best place for more information is Apple's documentation. It really is good. There is also a nice, simple tutorial on Cocoa Is My Girlfriend. share | ...
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In Visual Studio C++, what are the memory allocation representations?

... This link has more information: http://en.wikipedia.org/wiki/Magic_number_(programming) * 0xABABABAB : Used by Microsoft's HeapAlloc() to mark "no man's land" guard bytes after allocated heap memory * 0xABADCAFE : A startup to this valu...
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If REST applications are supposed to be stateless, how do you manage sessions?

...heir session state and the servers can service many orders of magnitude or more clients in a stateless fashion. Even for a service that you think will only need in the 10's of thousands of concurrent users, you still should make your service stateless. Tens of thousands is still tens of thousands an...
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LLVM vs clang on OS X

...r compile times. GCC and the GCC/LLVM combos have the advantage that a lot more code has been tested and works on the GCC flavor of C; there are some compiler specific extensions that only GCC has, and some places where the standard allows the implementation to vary but code depends on one particula...