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When should I use the HashSet type?
... it's a set. The only things you can do with a single set is to establish what its members are, and to check whether an item is a member.
Asking if you can retrieve a single element (e.g. set[45]) is misunderstanding the concept of the set. There's no such thing as the 45th element of a set. Ite...
What is move semantics?
...++0x now, with the exception of one. I still don't get move semantics ... What is it exactly?
12 Answers
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How can I find the location of origin/master in git, and how do I change it?
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Removing the remote origin was exactly what I needed because it was pointing to a local repository that didn't exist anymore, not the unfuddle repository.
– Brian Kelly
Nov 10 '08 at 16:47
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Why java.util.Optional is not Serializable, how to serialize the object with such fields
...ely lead to inconsisent behavior across callers. It's often better to have whatever code sets that field apply some policy at the time it's set.
Sometimes people want to put Optional into collections, like List<Optional<X>> or Map<Key,Optional<Value>>. This too is usually a ...
Unable to execute dex: GC overhead limit exceeded in Eclipse
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What are the limits on these numbers? How high should I consider putting them?
– easycheese
Mar 2 '14 at 3:58
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What is the difference between location list and quickfix list in vim
...documentation about the quickfix list and location list. But I am not sure what actually different. The image below shows the same things from the location list and quickfix list. When do I use one or another in vimgrep and lvimgrep.
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What is the use of “ref” for reference-type variables in C#?
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You can change what foo points to using y:
Foo foo = new Foo("1");
void Bar(ref Foo y)
{
y = new Foo("2");
}
Bar(ref foo);
// foo.Name == "2"
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
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what if the persistent connection is used?
– dusoft
Nov 24 '09 at 21:57
6
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Single vs Double quotes (' vs ")
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What has the risk of RSI and the number of keystrokes got to do with coding standards?
– Dib
Aug 11 '14 at 10:41
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What is the best way to check for Internet connectivity using .NET?
What is the fastest and most efficient way to check for Internet connectivity in .NET?
27 Answers
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