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Meaning of acronym SSO in the context of std::string
...e is limited (typically a few MiB), whereas the free store is only limited by your system's memory.
SSO is the Short / Small String Optimization. A std::string typically stores the string as a pointer to the free store ("the heap"), which gives similar performance characteristics as if you were to ...
FixedThreadPool vs CachedThreadPool: the lesser of two evils
...utors.newCachedThreadPool and Executors.newFixedThreadPool are both backed by the same thread pool implementation (at least in the open JDK) just with different parameters. The differences just being their thread minimum, maximum, thread kill time, and queue type.
public static ExecutorService new...
How can I have a newline in a string in sh?
...ands to
string, with backslash-escaped characters replaced as specified by the
ANSI C standard. Backslash escape sequences, if present, are decoded
as follows:
\a alert (bell)
\b backspace
\e
\E an escape character
\f for...
When should I use h:outputLink instead of h:commandLink?
...ick to h:outputLink or h:link for links. SEO should not be underestimated. By the way, for nice REST-like URL's like here on SO, have a look at PrettyFaces.
– BalusC
Nov 30 '10 at 20:02
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How to convert an int array to String with toString method in Java [duplicate]
...ments, enclosed in square brackets ("[]"). Adjacent elements are separated by the characters ", " (a comma followed by a space). Elements are converted to strings as by String.valueOf(int). Returns "null" if a is null.
shar...
What does $NON-NLS-1$ mean?
...alues/strings.xml to read strings.xml file in the code you use R.string.. By adding the tag //$NON-NLS-$ you are noting that the string will not be seen by users.
The warning in Eclipse Helios may be turned on at Window -> preferences -> java -> Compiler -> code style -> "Non-exte...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
...e.png);">
How it works:
The image is shrunk until no longer visible by the width & height.
Then, you need to 'reset' the image size with padding. This
one gives a 16x16 image. Of course you can use padding-left /
padding-top to make rectangular images.
Finally, the new image is put there...
Does pandas iterrows have performance issues?
...e, it may be faster to use other methods.
3) apply usually can be handled by an iterator in Cython space. This is handled internally by pandas, though it depends on what is going on inside the apply expression. For example, df.apply(lambda x: np.sum(x)) will be executed pretty swiftly, though of co...
Pointers in C: when to use the ampersand and the asterisk?
...nt of a pointer variable to get the value of the object that is pointed to by the pointer. But things work differently when you're working with arrays, strings or when you're calling functions with a pointer copy of a variable. It's difficult to see a pattern of logic inside all of this.
...
Why doesn't Java Map extend Collection?
I was surprised by the fact that Map<?,?> is not a Collection<?> .
9 Answers
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