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When to use symbols instead of strings in Ruby?
...utput, you should go with strings, even if it appears more than once, even allocating two different objects in memory.
Here's the reasoning:
Printing the symbols will be slower than printing strings because they are cast to strings.
Having lots of different symbols will increase the overall mem...
Why can templates only be implemented in the header file?
...at would add overhead such as boxing, needing to pass function pointers to allocators and constructors, etc. The intention of C++ templates is to avoid having to write nearly identical class MyClass_int, class MyClass_float, etc, but to still be able to end up with compiled code that is mostly as if...
When is memoization automatic in GHC Haskell?
...ency of 5356 bytes regardless of optimization, by the way (with less total allocation when -O2 is used).
– Ed'ka
Oct 17 '10 at 10:41
1
...
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...t even managed languages provide a finally-block despite resources being deallocated automatically by the garbage collector anyway?
Actually, languages based on Garbage collectors need "finally" more. A garbage collector does not destroy your objects in a timely manner, so it can not be relied upo...
Use of Finalize/Dispose method in C#
... that the resources have been disposed of and its ok to release the memory allocated for them.
}
}
finally
{
// explicitly call the base class Dispose implementation
base.Dispose( isDisposing );
this.IsDisposed = true;
}
}
//TODO Uncomment this cod...
Start thread with member function
...
not really relevant to the OP question, but why do you allocate Wrapper on the heap (and not deallocate it)? do you have java/c# background?
– Alessandro Teruzzi
Oct 13 '16 at 13:34
...
The Definitive C++ Book Guide and List
...ioms then explains how many useful design patterns (including small object allocators, functors, factories, visitors, and multi-methods) can be implemented efficiently, modularly, and cleanly using generic programming. [Review]
C++ Template Metaprogramming (David Abrahams and Aleksey Gurtovoy)
C++...
Haskell: Lists, Arrays, Vectors, Sequences
...VU; main = print (VU.cons 'a' (VU.replicate 100 'b')) compiles to a single allocation of 404 bytes (101 chars) in Core: hpaste.org/65015
– FunctorSalad
Mar 9 '12 at 6:11
...
Is there ever a time where using a database 1:1 relationship makes sense?
...ty is the capital of a country, for example.
Some kinds of scarce resource allocation, e.g. one employee can be assigned only one company car at a time (e.g. one truck per trucker, one taxi per cab driver, etc.). A colleague gave me this example recently.
Marriage (at least in legal jurisdictions wh...
How do I connect to this localhost from another computer on the same network?
...pretend you have a router (192.168.1.1). This router has a DHCP server and allocates IP addresses to 100 machines on the network.
Now, let's say you have, same as above, on the same network, a machine at 192.168.1.5 which has your website. We will call that machine pompei.
$ echo $HOSTNAME
pompei
...