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How to get the primary IP address of the local machine on Linux and OS X? [closed]
...f sed from a FreeBSD release of a few years ago. Not sure precisely which one, as OSX has adoped FreeBSD source code a few times over the years. I believe the use of -E was intended to be comparable to grep's -E option. No idea why GNU folks opted for -r instead.
– ghoti
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When to use .First and when to use .FirstOrDefault with LINQ?
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I would use First() when I know or expect the sequence to have at least one element. In other words, when it is an exceptional occurrence that the sequence is empty.
Use FirstOrDefault() when you know that you will need to check whether there was an element or not. In other words, when it is leg...
How to find the 'sizeof' (a pointer pointing to an array)?
...p until that value, but that's not using sizeof().
Another trick is the one mentioned by Zan, which is to stash the size somewhere. For example, if you're dynamically allocating the array, allocate a block one int bigger than the one you need, stash the size in the first int, and return ptr+1 as...
What's the point of OOP?
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@melaos: the summary is in the middle. OOP is one tool in the toolkit, not the only one, and there is no substitute for training, experience, and judgement.
– Mike Dunlavey
Dec 31 '08 at 14:37
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Under what circumstances are linked lists useful?
...al-world usage sample below - that would not be there if @Neil hadn't mentioned FORTRAN. ;-)
For example, ConcurrentDictionary<TKey, TValue> in .NET 4.0 RC use linked lists to chain items that hash to the same bucket.
The underlying data structure for ConcurrentStack<T> is also a link...
Spring classpath prefix difference
...lders in all your jars on the classpath will be picked up and joined into one big application context.
In contrast, classpath:conf/appContext.xml will load only one such file... the first one found on your classpath.
share...
What should go into an .h file?
...d to provide the implementation information that only needs to be known in one file. In general, function bodies, and internal variables that should/will never be accessed by other modules, are what belong in .cpp files. In a word, "implementations".
The simplest question to ask yourself to determi...
What is the “owning side” in an ORM mapping?
...he owning side mean? What is an explanation with some mapping examples ( one to many, one to one, many to one )?
2 Answer...
What are the differences between LinearLayout, RelativeLayout, and AbsoluteLayout?
...rence between LinearLayout, RelativeLayout, and AbsoluteLayout.
Could someone please tell me the exact differences between them?
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How to add a Timeout to Console.ReadLine()?
...urprised to learn that after 5 years, all of the answers still suffer from one or more of the following problems:
A function other than ReadLine is used, causing loss of functionality. (Delete/backspace/up-key for previous input).
Function behaves badly when invoked multiple times (spawning multip...