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Is Java really slow?
...ow (updated for 2013):
Libraries are often written for "correctness" and readability, not performance. In my opinion, this is the main reason Java still has a bad reputation, especially server-side. This makes the String problems exponentially worse. Some simple mistakes are common: objects are of...
Python's equivalent of && (logical-and) in an if-statement
...recedence (which you can learn about here: ibiblio.org/g2swap/byteofpython/read/operator-precedence.html)
– ChristopheD
Apr 2 '15 at 21:51
...
Why does NULL = NULL evaluate to false in SQL server
...rting code snippets for the same reason. Sorry about that. Buy the book to read about datailed reasoning.
Page numbers between parenthesis in what follow.
NOT NULL Constraint (11)
The most important column constraint is the NOT NULL, which forbids
the use of NULLs in a column. Use this c...
How to fully clean bin and obj folders within Visual Studio?
...
As others have responded already Clean will remove all artifacts that are generated by the build. But it will leave behind everything else.
If you have some customizations in your MSBuild project this could spell trouble and leave behind stuff you wo...
Github: Import upstream branch into fork
...(newbranch):
git checkout -b newbranch upstream/newbranch
When you're ready to push the new branch to origin:
git push -u origin newbranch
The -u switch sets up tracking to the specified remote (in this example, origin)
...
What does “@@ -1 +1 @@” mean in Git's diff output?
...3
16
Note that line 11 is the 9th line of the new file because we have already removed 2 lines on the previous hunk: 2 and 3.
Hunk header
Depending on your git version and configuration, you can also get a code line next to the @@ line, e.g. the func1() { in:
@@ -4,7 +4,6 @@ func1() {
This c...
Found conflicts between different versions of the same dependent assembly that could not be resolved
...'s a killer article on this stuff by SO's own @Nick Craver that you should read
While the other responses say this, they don't make it explicit, so I will....
On VS2013.2, to actually trigger the emission of the cited information, you need to not read the message, which says:
C:\Program Files (x86...
How do I change the root directory of an apache server? [closed]
...e what is in the quotes to your new directory. This gives Apache access to read from that directory when a user makes a request that call on it.
Now restart your apache service (httpd -k restart) and you should be good to go.
Edit: Apache2 site config files are now typically kept in /etc/apache2/s...
Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?
...on CPP files because, by definition, the contents of the CPP file are only read once.
You seem to have interpreted the include guards as having the same function as import statements in other languages (such as Java); that's not the case, however. The #include itself is roughly equivalent to the im...
What is the point of a private pure virtual function?
... the specification of the implementation's customizable behavior". You can read more about it in his article "Virtuality".
There is however one more interesting thing in the code you presented, that deserves some more attention, in my opinion. The public interface consists of a set of overloaded no...