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Differences in boolean operators: & vs && and | vs ||
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What does && mean in void *p = &&abc;
...e scanner generators like re2c (see the -g parameter) use that to generate more compact scanners. Maybe there's even a parser generator employing the same technique.
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Best way to represent a fraction in Java?
...n result
* in answers that are unexpected. See BigFraction(double) for more
* information.
*
* NOTE: In many cases, BigFraction(Double.toString(numerator) + "/" + Double.toString(denominator))
* may give a result closer to what the user expects.
*/
public BigFraction(double num...
Rails “validates_uniqueness_of” Case Sensitivity
... the perennial "user double clicked the submit button" problem, but that's more of a fix using :disable_with
– Ghoti
Aug 20 '11 at 16:43
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In Eclipse, can I have multiple Console views at once, each showing a different Console?
..., the "Display Selected Console" button is no longer disabled when one has more than one console view. This last button is needed to choose in which Console View one wants to have the output displayed.
– deinocheirus
Jul 16 '13 at 15:58
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How to write a JSON file in C#?
... file
System.IO.File.WriteAllText(@"D:\path.txt", json);
Or the slightly more efficient version of the above code (doesn't use a string as a buffer):
//open file stream
using (StreamWriter file = File.CreateText(@"D:\path.txt"))
{
JsonSerializer serializer = new JsonSerializer();
//seri...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...n Exception is a "worse" error than a RuntimeError, because you have to do more work to recover from it.
So which you want depends on how your project does its error handling. For instance, in our daemons, the main loop has a blank rescue which will catch RuntimeErrors, report them, and then contin...
Difference between Git and GitHub
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checkout this comparison to know more about Git Hosting Services. git-tower.com/blog/git-hosting-services-compared
– Junaid
Aug 23 '17 at 14:29
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Vagrant stuck connection timeout retrying
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How does Google calculate my location on a desktop?
...on if found, eventually with triangulation if intensities are present. The more wifi networks around, the higher is the accuracy of the positioning.
adds additional networks you see that are currently not in the database to their database, so they can be reused later.
As you see, the system builds...