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What to add for the update portion in ConcurrentDictionary AddOrUpdate
...sing Dictionary to use ConcurrentDictionary. I have reviewed some examples but I am still having trouble implementing the AddOrUpdate function. This is the original code:
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How to avoid having class data shared among instances?
What I want is this behavior:
7 Answers
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How do I determine whether my calculation of pi is accurate?
...t gives the digits of pi sequentially. I tried the Taylor series method, but it proved to converge extremely slowly (when I compared my result with the online values after some time). Anyway, I am trying better algorithms.
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Are there any disadvantages to always using nvarchar(MAX)?
... than specifying a length explicitly, e.g. nvarchar(255)? (Apart from the obvious one that you aren't able to limit the field length at the database level)
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How to add “active” class to Html.ActionLink in ASP.NET MVC
I'm trying to add an"active" class to my bootstrap navbar in MVC, but the following doesn't show the active class when written like this:
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How to limit the maximum value of a numeric field in a Django model?
Django has various numeric fields available for use in models, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a ...
What does the question mark in Java generics' type parameter mean?
... taken from some of the examples that accompany the Stanford Parser. I've been developing in Java for about 4 years, but have never had a very strong understanding of what this style of code is supposed to indicate.
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JavaScript get window X/Y position for scroll
I'm hoping to find a way to get the current viewable window's position (relative to the total page width/height) so I can use it to force a scroll from one section to another. However, there seems to be a tremendous amount of options when it comes to guessing which object holds the true X/Y for your...
What is the difference among col-lg-*, col-md-* and col-sm-* in Bootstrap?
... is the difference among col-lg-* , col-md-* and col-sm-* in Twitter Bootstrap?
11 Answers
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Why does GCC generate such radically different assembly for nearly the same C code?
While writing an optimized ftol function I found some very odd behaviour in GCC 4.6.1 . Let me show you the code first (for clarity I marked the differences):
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