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Produce a random number in a range using C#
...ly does lots of math on the value you give, and does so in a way that each call of Next() on the same Random object will result in a value quite random to the previous call. To make the result more random across different Random objects , you start with a different number -- here, the DateTime.Now...
How do I set a column value to NULL in SQL Server Management Studio?
...n
Like This:
Update News Set Title = CAST(NULL As nvarchar(100)) Where ID = 50
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When should we use mutex and when should we use semaphore
...semaphores is to notify threads One point about notifying threads. You can call sem_post from a signal handler safely (pubs.opengroup.org/onlinepubs/009695399/functions/…) but it is not recomended to call pthread_mutex_lock and pthread_mutex_unlock from signal handlers (manpages.ubuntu.com/manpage...
How can I change a secret Gist to public?
... for your Gist will never change, just its visibility.
As commented by GiDo though, since 2016:
you can only make public a gist that was previously private.
When it is public it will stay public.
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When to use “new” and when not to, in C++? [duplicate]
...of 'p' will be where its containing object, Foo, is allocated. I prefer to call this 'in-place' allocation.
class Foo
{
Point p;
}; // p will be automatically destroyed when foo is.
Allocating (and freeing) objects with the use of new is far more expensive than if they are allocated in-place s...
How do I return rows with a specific value first?
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@MehrdadAfshari: No, MSSQL is too stupid to process equivalency tests in the ORDER BY clause.
– chaos
Sep 11 '13 at 15:13
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Problem getting the AssemblyVersion into a web page using Razor /MVC3
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You could try to use the GetCallingAssembly(). I'm not sure if that is high enough up the call stack or not, but since Razor actually creates an assembly for each view, it stands to reason that your app would be the calling assembly for the view assembl...
String, StringBuffer, and StringBuilder
... where they don't have to be constantly re-sized every time .append() gets called.
The re-sizing can get very degenerate. It basically re-sizes the backing Array to 2 times its current size every time it needs to be expanded. This can result in large amounts of RAM getting allocated and not used wh...
the item you requested is not available for purchase
I'm trying to integrate Android Market in-app purchases into my app, but unfortunately coming across an annoying error every time I try to purchase a real inapp product.
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How to define optional methods in Swift protocol?
...ust always check if an optional method is implemented by either optionally calling or checking if the conforming type implements it. This might introduce a lot of boilerplate if you're calling optional methods often.
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