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std::function vs template

...ew additions. The most popular is that they are horribly slow. I tested it and they truly suck in comparison with templates. ...
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What is the MySQL VARCHAR max size?

...ySQL table has a maximum row size limit of 65,535 bytes, not counting BLOB and TEXT types. BLOB and TEXT columns only contribute 9 to 12 bytes toward the row size limit because their contents are stored separately from the rest of the row. Read more about Limits on Table Column Count and Row Size. ...
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Why is f(i = -1, i = -1) undefined behavior?

I was reading about order of evaluation violations , and they give an example that puzzles me. 11 Answers ...
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Should I instantiate instance variables on declaration or in the constructor?

...he compiler. The first variant is more readable. You can't have exception handling with the first variant. There is additionally the initialization block, which is as well put in the constructor(s) by the compiler: { a = new A(); } Check Sun's explanation and advice From this tutorial: ...
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What exactly does a jar file contain?

As an intern, I use company code in my projects and they usually send me a jar file to work with. I add it to the build path in Eclipse and usually all is fine and dandy. ...
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Is there any kind of hash code function in JavaScript?

...d, alternatively, maintain an array which indexes the objects in question, and use its index string as a reference to the object. Something like this: var ObjectReference = []; ObjectReference.push(obj); set['ObjectReference.' + ObjectReference.indexOf(obj)] = true; Obviously it's a little verbo...
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

Is there a rule-of-thumb for how to best divide data into training and validation sets? Is an even 50/50 split advisable? Or are there clear advantages of having more training data relative to validation data (or vice versa)? Or is this choice pretty much application dependent? ...
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How can I make a TextArea 100% width without overflowing when padding is present in CSS?

I have the following CSS and HTML snippet being rendered. 15 Answers 15 ...
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What is Inversion of Control?

... The Inversion of Control (IoC) and Dependency Injection (DI) patterns are all about removing dependencies from your code. For example, say your application has a text editor component and you want to provide spell checking. Your standard code would look so...
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Difference between Rebuild and Clean + Build in Visual Studio

What is the difference between just a Rebuild and doing a Clean + Build in Visual Studio 2008? Is Clean + Build different then doing Clean + Rebuild ? ...