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Declaring an enum within a class
...e below).
It solves the "namespace pollution" problem, but also it is much more typesafe (you can't assign and even compare two different enumerations, or your enumeration with any other built-in types etc).
struct Color
{
enum Type
{
Red, Green, Black
};
Type t_;
Color...
How do I put the image on the right side of the text in a UIButton?
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nginx - nginx: [emerg] bind() to [::]:80 failed (98: Address already in use)
...80 like this:
listen 80;
listen [::]:80 ipv6only=on default_server;
For more information, see:
http://forum.linode.com/viewtopic.php?t=8580
http://wiki.nginx.org/HttpCoreModule#listen
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i...
How does Stack Overflow generate its SEO-friendly URLs?
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Here's how we do it. Note that there are probably more edge conditions than you realize at first glance.
This is the second version, unrolled for 5x more performance (and yes, I benchmarked it). I figured I'd optimize it because this function can be called hundreds of times...
How to pip install a package with min and max version range?
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Check if a string is null or empty in XSLT
...ollowing Java?":
!(categoryName == null || categoryName.equals(""))
For more details e.g., distinctly identifying null vs. empty, see johnvey's answer below and/or the XSLT 'fiddle' I've adapted from that answer, which includes the option in Michael Kay's comment as well as the sixth possible int...
Difference between Array and List in scala
...undamental structure in Scala, that you should (probably) be using it much more than an Array (which is actually mutable - the immutable analog of Array is IndexedSeq).
If you are coming from a Java background, then the obvious parallel is when to use LinkedList over ArrayList. The former is genera...
What is the purpose of Verifiable() in Moq?
...ith Looking back, don't think I put it strongly enough. There is massively more benefit from splitting your work into AAA bundling than overconcentrating on commonalities between the Arrange and Assert phase. 90% of the time, there's something to be gained from the nuances of how you express the Ver...
How should I validate an e-mail address?
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Is there a way to squash a number of commits non-interactively?
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