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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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How to delete every other line in Vim?

... You can use a macro for this. Do the following. Start in command mode. Go to the beginning of the file by pressing gg. Press qq. Click arrow down and press dd after. Press q. Press 10000@q PS: To go to command mode just press Escape a couple of times. ...
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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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R memory management / cannot allocate vector of size n Mb

...e Matrix package for e.g.) for sparse matrices. Keep all other processes and objects in R to a minimum when you need to make objects of this size. Use gc() to clear now unused memory, or, better only create the object you need in one session. If the above cannot help, get a 64-bit machine with a...
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What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?

...echnically, the first raises a RuntimeError with the message set to "foo", and the second raises an Exception with the message set to "foo". Practically, there is a significant difference between when you would want to use the former and when you want to use the latter. Simply put, you probably w...
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Does bit-shift depend on endianness?

... equivalent of converting to big endian, the shifting operation comes next and then the new value is stored back in memory, which is where the little endian byte order comes into effect again. Update, thanks to @jww: On PowerPC the vector shifts and rotates are endian sensitive. You can have a val...
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difference between socket programming and Http programming

What is the difference between socket programming and Http programming? can anyone help please? 5 Answers ...
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How to convert java.util.Date to java.sql.Date?

I am trying to use a java.util.Date as input and then creating a query with it - so I need a java.sql.Date . 18 Answer...
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Does every Core Data Relationship have to have an Inverse?

Let's say I have two Entity classes: SocialApp and SocialAppType 8 Answers 8 ...