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How many bytes does one Unicode character take?
.... Those are the various unicode encodings, such as utf-8, utf-16le, utf-32 etc. They are distinguished largely by the size of of their codeunits. UTF-32 is the simplest encoding, it has a codeunit that is 32bits, which means an individual codepoint fits comfortably into a codeunit. The other encodin...
How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
...urce.
In general macports (or fink) help when there are complex libraries etc that need to be installed.
Python only code and if simple C dependencies can be set up via setuptools etc, but it begins to get complex if you mix the two.
...
Unable to find valid certification path to requested target - error even after cert imported
...tificate cert = chain[k];
String alias = host + "-" + (k + 1);
ks.setCertificateEntry(alias, cert);
OutputStream out = new FileOutputStream("jssecacerts");
ks.store(out, passphrase);
out.close();
System.out.println();
System.out.println(cert);
System.out.println();
...
What's a good rate limiting algorithm?
...ard_message();
allowance -= 1.0;
There are no datastructures, timers etc. in this solution and it works cleanly :) To see this, 'allowance' grows at speed 5/8 units per seconds at most, i.e. at most five units per eight seconds. Every message that is forwarded deducts one unit, so you can't se...
Good MapReduce examples [closed]
...esults and see that there
were only two words of length 5 in our corpus, etc...
The most common example of mapreduce is for counting the number of
times words occur in a corpus. Suppose you had a copy of the internet
(I've been fortunate enough to have worked in such a situation), and
y...
Memcached vs. Redis? [closed]
...ciently, expire all the members together, delete all the members together, etc. Great for any use case where you have several key/value pairs that need to grouped.
One example use of a hash is for storing user profiles between applications. A redis hash stored with the user ID as the key will allow ...
How do you make a web application in Clojure? [closed]
... database records, download files, post to a REST server, generate images, etc...
– lfalin
Mar 12 '14 at 9:41
...
Why are quaternions used for rotations?
...s (despite the bizarre story that's occasionally told about Hamilton/Gibbs/etc). Physics requires that our descriptions have good analytic behavior (this has a precisely defined meaning, but in some rather technical ways that go far beyond what's taught in normal intro classes, so I won't go into an...
How to read a single char from the console in Java (as the user types it)?
...ersions, 64/32 bit, Linux via SSH, Telnet, serial port or desktop console, etc.). So far I only use it in my private test tools. But the source code is relatively small, compared to other solutions (like JLine2 which uses Jansi). So there is not much that can go wrong. I wrote it, because JLine2 doe...
Path of assets in CSS files in Symfony 2
I have a CSS file with some paths in it (for images, fonts, etc.. url(..) ).
6 Answers
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