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Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic

...answer :(, Can you please edit the post, so that i can remove the downvote and give the upvote? – Shubham Sharma Jul 24 at 17:32 ...
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Why does my application spend 24% of its life doing a null check?

I've got a performance critical binary decision tree, and I'd like to focus this question on a single line of code. The code for the binary tree iterator is below with the results from running performance analysis against it. ...
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Is it possible to have SSL certificate for IP address, not domain name?

I want my site to use URLs like http://192.0.2.2/... and https://192.0.2.2/... for static content to avoid unnecessary cookies in request AND avoid additional DNS request. ...
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Should I put #! (shebang) in Python scripts, and what form should it take?

...line in any script determines the script's ability to be executed like a standalone executable without typing python beforehand in the terminal or when double clicking it in a file manager (when configured properly). It isn't necessary but generally put there so when someone sees the file opened in ...
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Unicode Processing in C++

... mundane tasks like string length, capitalization status, etc. Never use standard library builtins like is_alpha unless that is the definition you want. I can't say it enough: never iterate over the indices of a string if you care about correctness, always use your unicode library for this. ...
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MVC 4 @Scripts “does not exist”

I have just created an ASP.NET MVC 4 project and used Visual Studio 2012 RC to create a Controller and Razor Views for Index and Create Actions. ...
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sys.argv[1] meaning in script

I'm currently teaching myself Python and was just wondering (In reference to my example below) in simplified terms what the sys.argv[1] represents. Is it simply asking for an input? ...
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Vertex shader vs Fragment Shader [duplicate]

...ng is not quite clear to me. What exactly is the difference between vertex and fragment shaders? And for what situations is one better suited than the other? ...
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Using git, how do I ignore a file in one branch but have it committed in another branch?

...certain, patched versions of git. See a new answer pointing to workarounds and another answer and subsequent comments for a hint which versions may work. I wrote a blog post on how to effectively use the excludesfile for different branches, like one for public github and one for heroku deployment....
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Eclipse - no Java (JRE) / (JDK) … no virtual machine

... copying it from another computer: there is no special installation steps, and you can have as many different JVM versions (1.4, 5.0, 6.0...) as you want, "installed" (copied) almost anywhere on your disk. I would recommend to always run Eclipse with the lastest JRE possible (to benefit from the lat...