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Seeking clarification on apparent contradictions regarding weakly typed languages
...xample, $foo = @bar assigns the length of the array @bar to $foo, not its contents. (Also, there are a few other strange types, like typeglobs and I/O handles, that you don't often see m>ex m>posed.)
Also, a slight chink in this nice design is the m>ex m>istence of reference types, which are a special kind...
How to create a self-signed certificate with OpenSSL
...t the defaults.
Add -subj '/CN=localhost' to suppress questions about the contents of the certificate (replace localhost with your desired domain).
Self-signed certificates are not validated with any third party unless you import them to the browsers previously. If you need more security, you shou...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
... allow you to even think about pointers that don't point to either (a) the contents of an array or (b) the element immediately after the array or (c) NULL. See http://c-faq.com/aryptr/non0based.html.)
does comparing two pointers to different storage objects with < and > produce consistent resu...
std::wstring VS std::string
...ld whatever encoding you put in it. The only question is how You treat its content. My recommendation is UTF-8, so it will be able to hold all Unicode characters correctly. It's a common practice on Linux, but I think Windows programs should do it also.
No.
Wide character is a confusing name. In th...
SQL JOIN and different types of JOINs
...
An illustration from W3schools:
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Why would you use an ivar?
I usually see this question asked the other way, such as Must every ivar be a property? (and I like bbum's answer to this Q).
...
Java 256-bit AES Password-Based Encryption
... initialize the cipher with the derived key and stored IV, and decrypt the content.
– erickson
Oct 13 '09 at 17:57
6
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HTML5 Canvas Resize (Downscale) Image High Quality?
...aling you need to split it up in two (and rarely, more) steps depending on content of the image (in particular where high-frequencies such as thin lines occur).
Every time you down-sample an image you will loose details and information. You cannot m>ex m>pect the resulting image to be as clear as the ori...
Do asynchronous operations in ASP.NET MVC use a thread from ThreadPool on .NET 4
...ntire operation.
How do they work?
Suppose that we want to download the contents of a remote web page using the WebClient.DownloadStringAsync method. You call this method which will register an IOCP within the operating system and return immediately. During the processing of the entire request, n...
Difference between volatile and synchronized in Java
...ot need the additional overhead of full synchronization and it's attendant contention and cache flushing.
// Declaration
public class SharedLocation {
static public SomeObject someObject=new SomeObject(); // default object
}
// Publishing code
// Note: do not simply use SharedLocation.some...