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Return a `struct` from a function in C

Today I was teaching a couple of friends how to use C struct s. One of them asked if you could return a struct from a function, to which I replied: "No! You'd return pointers to dynamically malloc ed struct s instead." ...
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Virtual functions and performance - C++

In my class design, I use abstract classes and virtual functions extensively. I had a feeling that virtual functions affects the performance. Is this true? But I think this performance difference is not noticeable and looks like I am doing premature optimization. Right? ...
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How to create border in UIButton?

I use custom button in my app named "addButton" and I want to border it with white color how can i get the white color border around my custom button? ...
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How to stop a goroutine

I have a goroutine that calls a method, and passes returned value on a channel: 6 Answers ...
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GoTo Next Iteration in For Loop in java

Is there a token in java that skips the rest of the for loop? Something like VB's Continue in java. 6 Answers ...
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Should you declare methods using overloads or optional parameters in C# 4.0?

I was watching Anders' talk about C# 4.0 and sneak preview of C# 5.0 , and it got me thinking about when optional parameters are available in C# what is going to be the recommended way to declare methods that do not need all parameters specified? ...
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Print content of JavaScript object? [duplicate]

... we just use alert(object); it will show as [object Object] . How to print all the content parameters of an object in JavaScript? ...
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Why is String.chars() a stream of ints in Java 8?

In Java 8, there is a new method String.chars() which returns a stream of int s ( IntStream ) that represent the character codes. I guess many people would expect a stream of char s here instead. What was the motivation to design the API this way? ...
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Is sizeof(bool) defined in the C++ language standard?

I can't find an answer in the standard documentation. Does the C++ language standard require sizeof(bool) to always be 1 (for 1 byte), or is this size implementation-defined? ...
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How do I upgrade PHP in Mac OS X?

... You may want to check out Marc Liyanage's PHP package. It comes in a nice Mac OS X installer package that you can double-click. He keeps it pretty up to date. http://php-osx.liip.ch/ Also, although upgrading to Snow Leopard won't help you do PHP updates in the future, it will probably g...