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Calculate the median of a billion numbers
If you have one billion numbers and one hundred computers, what is the best way to locate the median of these numbers?
25 A...
Using arrays or std::vectors in C++, what's the performance gap?
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Now the std::vector vs. native C++ arrays (taken from the internet):
// Comparison of assembly code generated for basic indexing, dereferencing,
// and increment operations on vectors and arrays/pointers.
// Assembly code was generated by gcc 4.1.0 invoked with g++ -O3 -S on a
// x86_64-suse...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...ch will use the actual boolean type (and resolve to true and false) if the compiler supports it. (specifically, C++)
However, it would be better to check whether C++ is in use (via the __cplusplus macro) and actually use true and false.
In a C compiler, this is equivalent to 0 and 1.
(note that re...
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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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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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...
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...