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How does the ARM architecture differ from x86? [closed]
...crocode).
RISC architectures, in
contrast, have a smaller number of more general purpose instructions,
that might be executed with significantly fewer transistors, making
the silicon cheaper and more power efficient. Like other RISC
architectures, ARM cores have a large number of genera...
Why is std::map implemented as a red-black tree?
...ion while with AVL this is a O(log n) operation, making the Red-Black tree more efficient in this aspect of the re-balancing stage and one of the possible reasons that it is more commonly used.
Red-Black trees are used in most collection libraries, including the offerings from Java and Microsoft .N...
Regular expression to match any character being repeated more than 10 times
...for a simple regular expression to match the same character being repeated more than 10 or so times. So for example, if I have a document littered with horizontal lines:
...
Why is the use of tuples in C++ not more common?
...use other parts of Boost like crazy. Although certainly hash maps are much more useful in general than tuples.
– Zifre
May 12 '09 at 22:13
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What does the term “porcelain” mean in Git?
...m "plumbing" (the actual pipes and drains), where the porcelain provides a more user-friendly interface to the plumbing.
Git uses this terminology in analogy, to separate the low-level commands that users don't usually need to use directly (the "plumbing") from the more user-friendly high level com...
How to create a multi-tenant database with shared table structures?
...
approach can also provide strong data
safety, but requires the use of more
sophisticated design patterns.
As for technical and business considerations, the article makes a brief analysis on where a certain approach might be more appropriate than another:
The number, nature, and needs of...
Programming with white text on black background?
...in the darkness a black background would give less contrast, but then it's more a question of why you don't have proper lighting in your room...
There are of course personal preferences than can affect your choise of color setting, and your eyesight (or lack thereof) might also make one setting bet...
Are booleans as method arguments unacceptable? [closed]
...ions, neither of which is clearly yes or no, then an enum can sometimes be more readable.
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Decimal number regular expression, where digit after decimal is optional
...Use the following:
/^\d*\.?\d*$/
^ - Beginning of the line;
\d* - 0 or more digits;
\.? - An optional dot (escaped, because in regex, . is a special character);
\d* - 0 or more digits (the decimal part);
$ - End of the line.
This allows for .5 decimal rather than requiring the leading zero, su...
Memcached vs. Redis? [closed]
...
Summary (TL;DR)
Updated June 3rd, 2017
Redis is more powerful, more popular, and better supported than memcached. Memcached can only do a small fraction of the things Redis can do. Redis is better even where their features overlap.
For anything new, use Redis.
Memcached vs...