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What is std::move(), and when should it be used?
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template <class T>
swap(T& a, T& b) {
T tmp(a); // we now have two copies of a
a = b; // we now have two copies of b (+ discarded a copy of a)
b = tmp; // we now have two copies of tmp (+ discarded a copy of b)
}
using move allows you to swap the resources inste...
How to escape single quotes within single quoted strings
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If you really want to use single quotes in the outermost layer, remember that you can glue both kinds of quotation. Example:
alias rxvt='urxvt -fg '"'"'#111111'"'"' -bg '"'"'#111111'"'"
# ^^^^^ ^^...
iOS Detect 3G or WiFi
...hability files as they had errors for iOS5 in it - but I am so happy right now. Unfortunately I can only give you 1 up vote:-)
– jwknz
Oct 29 '11 at 20:19
10
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Replacing all non-alphanumeric characters with empty strings
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@William -- it's unfortunate that PHP is now getting credit for PCRE
– Thomas Dignan
Feb 11 '13 at 3:10
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jQuery selector regular expressions
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The answer below from nickf should be the accepted one. If you are reading this answer, be sure to read that one!
– Quentin Skousen
Sep 17 '14 at 19:58
5
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String's Maximum length in Java - calling length() method
...n is implemented for Strings), Chapter 10: Arrays of The Java Language Specification, Java SE 7 Edition says the following:
The variables contained in an array
have no names; instead they are
referenced by array access expressions
that use nonnegative integer index
values. These variable...
How to count total lines changed by a specific author in a Git repository?
...s there a command I can invoke which will count the lines changed by a specific author in a Git repository? I know that there must be ways to count the number of commits as Github does this for their Impact graph.
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How to generate random number with the specific length in python
... this snipet give you a result of 037??? it's a randint from (100 to 1000) if n ==3
– moldovean
Jan 7 '14 at 10:17
3
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How can I display an image from a file in Jupyter Notebook?
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Note, until now posted solutions only work for png and jpg!
If you want it even easier without importing further libraries or you want to display an animated or not animated GIF File in your Ipython Notebook. Transform the line where yo...
Autoincrement VersionCode with gradle extra properties
I'm building an Android app with gradle. Until now I used the Manifest file to increase the versionCode, but I would like to read the versionCode from an external file and depending if it is the release flavor or the debug flavor increase the versionCode. I tried the extra properties, but you can't ...