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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...AMD documents it and compilers don't expose it.)
(Yes, these instructions all run on the same execution unit).
This dependency doesn't just hold up the 4 popcnts from a single loop iteration. It can carry across loop iterations making it impossible for the processor to parallelize different loop...
What is the precise meaning of “ours” and “theirs” in git?
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I suspect you're confused here because it's fundamentally confusing. To make things worse, the whole ours/theirs stuff switches roles (becomes backwards) when you are doing a rebase.
Ultimately, during a git merge, the "ours" branch refers to the branch you're merging into:
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In a Bash script, how can I exit the entire script if a certain condition occurs?
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@CMCDragonkai, usually any non-zero code will work. If you don't need anything special, you can just use 1 consistently. If the script is meant to be run by another script, you may want to define your own set of status code with particular mea...
Get all column names of a DataTable into string array using (LINQ/Predicate)
...ase post it as a new question and include details of your code. But essentially: A DataGrid is not the same as a DataTable.
– Daniel Hilgarth
May 17 '13 at 8:08
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Best practices: throwing exceptions from properties
...roperties at http://msdn.microsoft.com/en-us/library/ms229006.aspx
Essentially, they recommend that property getters be lightweight accessors that are always safe to call. They recommend redesigning getters to be methods if exceptions are something you need to throw. For setters they indicate that ...
What is the real overhead of try/catch in C#?
... to make here:
Firstly, there is little or NO performance penalty in actually having try-catch blocks in your code. This should not be a consideration when trying to avoid having them in your application. The performance hit only comes into play when an exception is thrown.
When an exception is th...
When should you not use virtual destructors?
...o not declare a virtual destructor for a class? When should you specifically avoid writing one?
12 Answers
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How do you run a single test/spec file in RSpec?
...tests — for the one file I'm editing, for example. rake spec executes all the specs. My project is not a Rails project, so rake spec:doc doesn't work.
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Is there an ExecutorService that uses the current thread?
...after is a compatible way to configure the use of a thread pool or not. Ideally the rest of the code should not be impacted at all. I could use a thread pool with 1 thread but that isn't quite what I want. Any ideas?
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WCF vs ASP.NET Web API [closed]
...b API project (although some of the concepts have changed).
WCF was originally created to enable SOAP-based services. For simpler RESTful or RPCish services (think clients like jQuery) ASP.NET Web API should be good choice.
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