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What is the purpose of `text=auto` in `.gitattributes` file?
...eplaced CR + LF bytes with LF bytes in the object database. That was not a fun one to debug.
If you must use * text=auto, put it as the first line in .gitattributes, so that the later lines can override it. This seems to be becoming an increasingly popular practise.
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Hidden features of mod_rewrite
...ertain aspects of it work. As a result I've compiled a few notes on common functionality, and perhaps a few annoying nuances.
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Java Generics (Wildcards)
...me pretty good explanations of generics in the articles Wildcards and More Fun with Wildcards.
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Looking for a good world map generation algorithm [closed]
... One cheap trick you can always use is to define in a mathematical function what defines a "good" map, and then to create ten random minor changes and then use the best of them. Keep doing that and it'll drift toward the kind of map you want.
– dascandy
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How can I save an image to the camera roll?
...et up an IBAction for the button to save the image. What library method or function can I use to save an image to the user's camera roll?
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What is the difference between “int” and “uint” / “long” and “ulong”?
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This is quite fun to work out by hand. A 32-bit signed variable uses 1 bit for the sign (positive or negative) so can store values between -2^31 and +2^31 - 1
– Jaco Pretorius
Sep 16 '10 at 8:29
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Setting variable to NULL after free
...obal variables. Even for local variables, it may be a good approach if the function continues after the memory is released.
To complete the style, you should also initialize pointers to NULL before they get assigned a true pointer value.
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Pass correct “this” context to setTimeout callback?
...e this problem was to save a reference to the context where the setTimeout function call is made, because setTimeout executes the function with this pointing to the global object:
var that = this;
if (this.options.destroyOnHide) {
setTimeout(function(){ that.tip.destroy() }, 1000);
}
In the...
Why is lazy evaluation useful?
... they're not going to be used. For example, I may pass three values into a function, but depending on the sequence of conditional expressions, only a subset may actually be used. In a language like C, all three values would be computed anyway; but in Haskell, only the necessary values are computed.
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How to specialize std::hash::operator() for user-defined type in unordered containers?
...ap<Key, Value>
one has to provide operator==(Key, Key) and a hash functor:
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