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Array versus linked-list

Why would someone want to use a linked-list over an array? 34 Answers 34 ...
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR

In ARC enabled code, how to fix a warning about a potential retain cycle, when using a block-based API? 7 Answers ...
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How to align absolutely positioned element to center?

I am trying to stack two canvas together and make it a double layers canvas. 7 Answers ...
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Difference between array_push() and $array[] =

...hen you call a function in PHP (such as array_push()), there are overheads to the call, as PHP has to look up the function reference, find its position in memory and execute whatever code it defines. Using $arr[] = 'some value'; does not require a function call, and implements the addition straight...
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How do you do a deep copy of an object in .NET? [duplicate]

... I've seen a few different approaches to this, but I use a generic utility method as such: public static T DeepClone<T>(this T obj) { using (var ms = new MemoryStream()) { var formatter = new BinaryFormatter(); formatter.Serialize(ms, obj); ...
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Efficient way to return a std::vector in c++

How much data is copied, when returning a std::vector in a function and how big an optimization will it be to place the std::vector in free-store (on the heap) and return a pointer instead i.e. is: ...
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How to create default value for function argument in Clojure

...e multiple signatures if the signatures differ in arity. You can use that to supply default values. (defn string->integer ([s] (string->integer s 10)) ([s base] (Integer/parseInt s base))) Note that assuming false and nil are both considered non-values, (if (nil? base) 10 base) could ...
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Why the switch statement cannot be applied on strings?

... The reason why has to do with the type system. C/C++ doesn't really support strings as a type. It does support the idea of a constant char array but it doesn't really fully understand the notion of a string. In order to generate the code f...
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How to urlencode data for curl command?

I am trying to write a bash script for testing that takes a parameter and sends it through curl to web site. I need to url encode the value to make sure that special characters are processed properly. What is the best way to do this? ...
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Ignore whitespace in HTML [duplicate]

Is there anything in HTML/CSS that tells the browser to ignore whitespace completely? 12 Answers ...