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If strings are immutable in .NET, then why does Substring take O(n) time?
...(n) is O(1) if n does not grow large. Most people extract tiny substrings from tiny strings, so how the complexity grows asymptotically is completely irrelevant.
The long answer is:
An immutable data structure built such that operations on an instance permit re-use of the memory of the original w...
Map enum in JPA with fixed values?
...defined as simply 'M' or 'F' in the database but that shouldn't prevent me from using Gender.MALE and Gender.FEMALE in Java, instead of Gender.M or Gender.F.
– spaaarky21
Sep 11 '11 at 2:41
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Fling gesture detection on grid layout
... It is worth noting that you can actually obtain scaled, reasonable values from the system using ViewConfiguration class:
final ViewConfiguration vc = ViewConfiguration.get(getContext());
final int swipeMinDistance = vc.getScaledPagingTouchSlop();
final int swipeThresholdVelocity = vc.getScaledMini...
How to use cURL to send Cookies?
...ol, it's passed as is, otherwise it's treated as a filename to read cookie from.
– ryenus
Oct 21 '14 at 2:10
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Worth switching to zsh for casual use? [closed]
....
Installing it is pretty easy, grab the bash-completion-20060301.tar.gz from http://www.caliban.org/bash/index.shtml#completion and extract it with
tar -xzvf bash-completion-20060301.tar.gz
then copy the bash_completion/bash_completion file to /etc with
sudo cp bash_completion/bash_completi...
How to convert numbers between hexadecimal and decimal
...
To convert from decimal to hex do...
string hexValue = decValue.ToString("X");
To convert from hex to decimal do either...
int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
or
int decValue = Conve...
Pretty graphs and charts in Python [closed]
... a Matlab-style interactive API.
Chaco is a more modern plotting library from the folks at Enthought. It uses Enthought's Kiva vector drawing library and currently works only with Wx and Qt with OpenGL on the way (Matplotlib has backends for Tk, Qt, Wx, Cocoa, and many image types such as PDF, EPS...
Git in Powershell saying 'Could not find ssh-agent'
...for a detailed explanation have a read of this blog post. Below is a quote from the blog post. Ultimately the ssh-agent.exe needs to be in the path, or resolved some other way.
EDIT:
It appears most of the people don't bother reading the linked blog and the original extract did not quote the full so...
How to rename files and folder in Amazon S3?
...d it works:
aws s3 --recursive mv s3://<bucketname>/<folder_name_from> s3://<bucket>/<folder_name_to>
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What do the following phrases mean in C++: zero-, default- and value-initialization?
...fication). See Kirill V. Lyadvinsky's answer for the definitions straight from the standard.
See this previous answer about the behavior of operator new for details on the the different behavior of these type of initialization and when they kick in (and when they differ from c++98 to C++03):
Do ...