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In C# what is the difference between a destructor and a Finalize method in a class?
...nmanaged recources in the dispose
method like database connection, files etc. The class implementing
dispose method should implement IDisposable interface.A Dispose method
should call the GC.SuppressFinalize method for the object it is
disposing if the class has desturctor because it has alr...
What is external linkage and internal linkage?
...
When you write an implementation file (.cpp, .cxx, etc) your compiler generates a translation unit. This is the source file from your implementation plus all the headers you #included in it.
Internal linkage refers to everything only in scope of a translation unit.
Externa...
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
.... Of-course this does not apply to stored procs that only does the normal fetch or update but to ones that perform more processing like looping over datasets.
PROS
Performance for what it may be worth (avoids query parsing by DB driver / plan recreation etc)
Data manipulation is not embedded in ...
How does BLAS get such extreme performance?
...
Most arguments to the second question -- assembler, splitting into blocks etc. (but not the less than N^3 algorithms, they are really overdeveloped) -- play a role. But the low velocity of your algorithm is caused essentially by matrix size and the unfortunate arrangement of the three nested loops....
PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
...ded source code
external request (curl)
client/attacker's Host: request
etc
Usually its done via the local (SAPI) config file. Note that you have configured it correctly, e.g. in Apache ➫➫:
A couple of things need to be 'faked' to make the dynamic virtual host look like a normal one.
The m...
What does SynchronizationContext do?
...SynchronizationContext, ThreadPool.QueueUserWorkItem, control.BeginInvoke, etc. over to the new async / await keywords and the Task Parallel Library (TPL), i.e. the API surrounding the Task and Task<TResult> classes. These will, to a very high degree, take care of capturing the UI thread's syn...
How to make an array of arrays in Java
...onality (index-based lookup, sorting, uniqueness, FIFO-access, concurrency etc.).
While it's of course good and important to know about Arrays and their usage, in most cases using Collections makes APIs a lot more manageable (which is why new libraries like Google Guava hardly use Arrays at all).
...
How to calculate the difference between two dates using PHP?
...mponents.
* If the interval doesn't have a time component (years, months, etc)
* That component won't be displayed.
*
* @param DateInterval $interval The interval
*
* @return string Formatted interval string.
*/
function format_interval(DateInterval $interval) {
$result = "";
if ($int...
What is the difference between “px”, “dip”, “dp” and “sp”?
...he same on a multitude of devices. So even if the physical size of buttons etc changes a little bit, the overall look of an activity will be the same.
– intrepidis
Jun 15 '13 at 7:03
...
Is there documentation for the Rails column types?
...5 characters (depending on DBMS)
Use for short text fields (names, emails, etc)
Text:
Unlimited length (depending on DBMS)
Use for comments, blog posts, etc. General rule of thumb: if it's captured via textarea, use Text. For input using textfields, use string.
Integer:
Whole numbers
Float:
...