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__lt__ instead of __cmp__
Python 2.x has two ways to overload comparison operators, __cmp__ or the "rich comparison operators" such as __lt__ . The rich comparison overloads are said to be preferred, but why is this so?
...
Is there any advantage of using map over unordered_map in case of trivial keys?
... and if you can't afford them, then you can't use it.
Just from personal experience, I found an enormous improvement in performance (measured, of course) when using unordered_map instead of map in a main entity look-up table.
On the other hand, I found it was much slower at repeatedly inserting an...
How can I use different certificates on specific connections?
...ce(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(keyStore);
SSLContext ctx = SSLContext.getInstance("TLS");
ctx.init(null, tmf.getTrustManagers(), null);
sslFactory = ctx.getSocketFactory();
If you need help creating the key store, please comment.
Here's an example of loading the key sto...
What is the difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim?
...
j will be mapped to gg. Q will also be mapped to gg, because j will be expanded for the recursive mapping. W will be mapped to j (and not to gg) because j will not be expanded for the non-recursive mapping.
Now remember that Vim is a modal editor. It has a normal mode, visual mode and other mode...
Start / Stop a Windows Service from a non-Administrator user account
...f DS objects.
CR: ADS_RIGHT_DS_CONTROL_ACCESS - Access allowed only after extended rights checks supported by the object are performed. This flag can be used alone to perform all extended rights checks on the object or it can be combined with an identifier of a specific extended right to perform onl...
Biggest GWT Pitfalls? [closed]
...sing GWT. Has anyone encountered any major pitfalls in using GWT (and GWT-EXT) that were unable to be overcome? How about from a performance perspective?
...
Does ruby have real multithreading?
...can only run one thread at a
time.
However, any number of C Threads (POSIX Threads etc.) can run
in parallel to the Ruby Thread, so external C Libraries, or MRI
C Extensions that create threads of their own can still run in
parallel.
The second implementation is YARV (short for "Yet
Another Ru...
Is there a way to instantiate objects from a string holding their class name?
...
protected:
static map_type * getMap() {
// never delete'ed. (exist until program termination)
// because we can't guarantee correct destruction order
if(!map) { map = new map_type; }
return map;
}
private:
static map_type * map;
};
template<typena...
How do I set a variable to the output of a command in Bash?
...races are irrelevant; it's only the quotes that are important re: whether expansion results are string-split and glob-expanded before being passed to the echo command.
– Charles Duffy
Apr 21 '15 at 15:37
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What is the preferred/idiomatic way to insert into a map?
...ype;
/* ... */
pair<iterator, bool> insert(const value_type& x);
So how are the three calls different ?
std::make_pair relies on template argument deduction and could (and in this case will) produce something of a different type than the actual value_type of the map, which will req...