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How do you round a floating point number in Perl?
...sagreeing with the complex answers about half-way marks and so on, for the more common (and possibly trivial) use-case:
my $rounded = int($float + 0.5);
UPDATE
If it's possible for your $float to be negative, the following variation will produce the correct result:
my $rounded = int($float + $fl...
What is the gain from declaring a method as static
...piler check that you don't use members that you do not intend to use.
And moreover, it will help people reading your code understand the nature of the contract.
That's why it's considered good to declare a method static when it's actually implementing a static contract.
In some cases, your method...
What does the comma operator , do?
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Scala type programming resources
...(i.e. there is an implicit conversion from A to a subtype of B)
an example
more comparison operators
Converting between types and values
In many of the examples, types defined via traits are often both abstract and sealed, and therefore can neither be instantiated directly nor via anonymous su...
Really weird eclipse keyboard behavior/bug?
... reoccur in a couple of years now. Either Eclipse fixed the problems or a more recent version of Mac OSX has fixed something. For the record I'm running Eclipse 4.5.2 on OSX 10.11.6.
UPDATE: 4/29/2011 Now it looks like this is not a Workspace or keyboard preferences issue at all. This just happe...
UITableView - change section header color
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Warning: push.default is unset; its implicit value is changing in Git 2.0
...it pull would pull from, and also checks that their names match. This is a more intuitive behavior, which is why the default is getting changed to this.
This setting only affects the behavior of your local client, and can be overridden by explicitly specifying which branches you want to push on th...
How to copy a selection to the OS X clipboard
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TortoiseSVN icons not showing up under Windows 7
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Check if Python Package is installed
...hat's generally what you want. You can use the import tools module to do a more sophisticated check, but most of the time the only reason you care if a module is installed is because you want to use it.
– Christopher
Jan 23 '15 at 18:30
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