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Installing Python 3 on RHEL
...-c 'wget -qO- http://people.redhat.com/bkabrda/scl_python33.repo >> /etc/yum.repos.d/scl.repo'
sudo yum install python33
scl enable python27
(This last command will have to be run each time you want to use python27 rather than the system default.)
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Comparison of Lucene Analyzers
...ds on language. For English these words are "a", "the", "I", "be", "have", etc. Stop-words filters remove them from the token stream to lower noise in search results, so finally our phrase "I'm very happy" with StandardAnalyzer will be transformed to list ["veri", "happi"].
And KeywordAnalyzer ag...
Using PHP with Socket.io
...y suck. Each were very slow, when something is broken, support is horrible etc. On the other hand, in Finland it's not rare to get decent quality web hosting (but with php/mysql/static files only) with adsl subscription, without paying any extra. So no, being able to buy crappy VPS for $5 is definit...
TreeMap sort by value
...e. Since the Comparator violates the Set contract Set.remove, Set.contains etc doesn't work! Check this example at ideone.
– dacwe
Jan 8 '13 at 15:47
3
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How to skip over an element in .map()?
... With all these negative, "empty"-style values (null, undefined, NaN etc) it would be good if we could utilise one inside a map() as an indicator that this object maps to nothing and should be skipped. I often come across arrays I want to map 98% of (eg: String.split() leaving a single, empty...
Difference between database and schema
...initions for other database objects such as tables,views,stored procedures etc.
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What does java.lang.Thread.interrupt() do?
...ead is interrupted before it blocks on Object.wait(..) or Thread.sleep(..) etc., this is equivalent to it being interrupted immediately upon blocking on that method, as the following example shows.
public class InterruptTest {
public static void main(String[] args) {
Thread.currentThre...
Why is there no std::stou?
...st does is sheer performance; I believe iostreams lose out against strtoul etc. by a considerable margin.
– Kerrek SB
Jan 3 '12 at 18:31
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Default html form focus without JavaScript
...ater during browsing, which may come in handy for users of screen readers, etc...
Wikipedias article on this subject is quite useful - http://en.wikipedia.org/wiki/Access_key
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...in L2 (i.e when you access matice2[0, 0], matice2[1, 0], matice2[2, 0] ... etc, nothing gets evicted) than there is no problem with cache misses with matice2 either.
Now to go deeper in how caches works, if byte address of your variable is X, than the cache line for it would be (X >> 6) &...