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Create RegExps on the fly using string variables

... With string literals this is easy enough. Not really! The example only replaces the first occurrence of string_to_replace. More commonly you want to replace all occurrences, in which case, you have to convert the string into a global (/.../g) RegExp. You can do this from a...
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What is a bank conflict? (Doing Cuda/OpenCL programming)

...ank 2, ..., 64-69 in bank 1 and so on). For a better visualization it basically looks like this: Bank | 1 | 2 | 3 |... Address | 0 1 2 3 | 4 5 6 7 | 8 9 10 11 |... Address | 64 65 66 67 | 68 69 70 71 | 72 73 74 75 |... ... So if each thread in a halfwarp...
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Can I make fast forwarding be off by default in git?

I can't really ever think of a time when I would use git merge rather than git rebase and not want to have a commit show up. Is there any way to configure git to have fast forwarding off by default? The fact that there's an --ff option would seem to imply that there's a way, but I can't se...
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to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh

...bviews whenever you can. You can be more productive, and take advantage of all the OO mechanisms that should things easier to maintain. Use Core Graphics when you can't get the performance you need out of UIKit, or you know trying to hack together drawing effects in UIKit would be more complicated....
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Difference between using Throwable and Exception in a try catch

...catching Throwable it includes things that subclass Error. You should generally not do that, except perhaps at the very highest "catch all" level of a thread where you want to log or otherwise handle absolutely everything that can go wrong. It would be more typical in a framework type application (f...
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?

... (Note: root, base, apex domains are all the same thing. Using interchangeably for google-foo.) Traditionally, to point your apex domain you'd use an A record pointing to your server's IP. This solution doesn't scale and isn't viable for a cloud platform like H...
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Is leaked memory freed up when the program exits?

...s a reference to, and thus can no longer free. The OS still keeps track of all the memory allocated to a process, and will free it when that process terminates. In the vast majority of cases the OS will free the memory - as is the case with normal "flavors" of Windows, Linux, Solaris, etc. However ...
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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?

...t can be written as "r1..r2". A similar notation "r1...r2" is called symmetric difference of r1 and r2 and is defined as "r1 r2 --not $(git merge-base --all r1 r2)". It is the set of commits that are reachable from either one of r1 or r2 but not from both. Which basical...
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Find a string by searching all tables in SQL Server Management Studio 2008

Is there any way to search for a string in all tables of a database in SQL Server Management Studio 2008? 8 Answers ...
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Should I use a data.frame or a matrix?

... Something not mentioned by @Michal is that not only is a matrix smaller than the equivalent data frame, using matrices can make your code far more efficient than using data frames, often considerably so. That is one reason why internally, a lot of R functions will coerce to matrices data th...