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How can I reconcile detached HEAD with master/origin?
I'm new at the branching complexities of Git. I always work on a single branch and commit changes and then periodically push to my remote origin.
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Are Java static calls more or less expensive than non-static calls?
Is there any performance benefit one way or another? Is it compiler/VM specific? I am using Hotspot.
12 Answers
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Conditional Variable vs Semaphore
...g repeatedly while checking a condition) while waiting for a resource to become available. For instance, if you have a thread (or multiple threads) that can't continue onward until a queue is empty, the busy waiting approach would be to just doing something like:
//pseudocode
while(!queue.empty())...
Mutable vs immutable objects
...he logical "reasonability" of your code. This is a hard term to define, encompassing everything from readability to flow. Generically, you should be able to look at a piece of code and easily understand what it does. But more important than that, you should be able to convince yourself that it do...
static const vs #define
... somewhere, regardless if it's static const or #define. In fact, I've seen compilers where using #define caused massive (read-only) memory consumption, and static const used no un-needed memory.
– Gilad Naor
Jul 27 '10 at 8:10
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Technically, why are processes in Erlang more efficient than OS threads?
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@nilskp: (RE: you comment on point 3…) Even though the language itself has an immutable type system, the underlying implementation — message passing, scheduler, etc. — is a different story altogether. Correct and efficient SMP support di...
Can a C# class inherit attributes from its interface?
...ived class, you need to re-declare the attributes.
If you only care about ComponentModel (not direct reflection), there is a way ([AttributeProvider]) of suggesting attributes from an existing type (to avoid duplication), but it is only valid for property and indexer usage.
As an example:
using S...
MySQL Great Circle Distance (Haversine formula)
...arrow the query for better performance as explained in this doc: tr.scribd.com/doc/2569355/Geo-Distance-Search-with-MySQL
– maliayas
Nov 15 '12 at 1:25
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Parse usable Street Address, City, State, Zip from a string [closed]
... too -- there's only 50 of them. Also, you could soundex the words to help compensate for spelling errors.
before that is the city, and it's probably on the same line as the state. You could use a zip-code database to check the city and state based on the zip, or at least use it as a BS detector.
Th...
What is the list of possible values for navigator.platform as of today? [closed]
...ed, just like user agent strings. Never rely on the navigator object to be completely accurate.
The definition
As far as I know there isn't a single public list of all possible `navigator.platform` values, even though the property has been around for quite a bit. To make things worse, the property's...