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Difference between WebStorm and PHPStorm
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476
I couldn't find any major points on JetBrains' website and even Google didn't help that muc...
When does invoking a member function on a null instance result in undefined behavior?
...pointer results in undefined behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A nul...
How do I remove the passphrase for the SSH key without having to create a new key?
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2034
Short answer:
$ ssh-keygen -p
This will then prompt you to enter the keyfile location, the ol...
Rebasing a Git merge commit
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Joshua Goldberg
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answered Jan 24 '11 at 16:01
siridesiride
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How to open existing project in Eclipse
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answered Jul 23 '12 at 21:24
biegleuxbiegleux
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Detect Chrome extension first run / update
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4 Answers
4
Active
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Should I use a data.frame or a matrix?
...mine the choice.
Also:
Matrices are more memory efficient:
m = matrix(1:4, 2, 2)
d = as.data.frame(m)
object.size(m)
# 216 bytes
object.size(d)
# 792 bytes
Matrices are a necessity if you plan to do any linear algebra-type of operations.
Data frames are more convenient if you frequently refer ...
How do I log ALL exceptions globally for a C# MVC4 WebAPI app?
...HttpStatusCode.Unauthorized:
Response.Redirect("/Http/Error401");
break;
// TODO: don't forget that here you have many other status codes to test
// and handle in addition to 401.
}
else
{
// It was not an ...
What are the differences between poll and select?
... the comments
in the system header imply today) but it takes more work. 4.4BSD's
kernel and the Solaris library function both have this limit. But I
see that BSD/OS 2.1 has now been coded to avoid this limit, so it's
doable, just a small matter of programming. :-) Someone should file a
...
Difference between JVM and HotSpot?
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149
The definition of what exactly is a Java Virtual Machine is stated in the Java Virtual Machine ...