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Abusing the algebra of algebraic data types - why does this work?
...ely, all unit types. They behave identically under algebraic manipulations and, more importantly, the amount of information present is still preserved.
You probably want a zero type as well. Haskell provides that as Void. There are no values whose type is zero, just as there is one value whose type ...
List of Delphi language features and version in which they were introduced/deprecated
Before I begin, I would like to point out that I have honestly and genuinely searched repeatedly and exhaustively via Google for such a thing, and been unable to find one.
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What is the purpose of a stack? Why do we need it?
...the stack?
I assume you mean the evaluation stack of the MSIL language, and not the actual per-thread stack at runtime.
Why is there a transfer from memory to stack or "loading?" On the other hand, why is there a transfer from stack to memory or "storing"? Why not just have them all placed i...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
...sass-cache.php?old_fn_base=$1
RewriteRule ^images/([\w\.\-]+)\.gif$ png-converter.php?load_from=$2
Other common uses are remapping obsolete .html paths to newer .php handlers, or just aliasing directory names only for individual (actual/real) files.
Ping-Pong (redirects and rewrites in unison) ...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...nds on a combination of server-supplied MIME type headers, file extension, and/or the data itself. Usually, only the first 256 bytes of data are significant.
So, read the first (up to) 256 bytes from the file and pass it to FindMimeFromData.
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Is “inline” without “static” or “extern” ever useful in C99?
...extern inline do?
The idea is that "inline" can be used in a header file, and then "extern inline" in a .c file. "extern inline" is just how you instruct the compiler which object file should contain the (externally visible) generated code.
[update, to elaborate]
I do not think there is any use ...
ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
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* Weather update server
* Binds PUB socket to tcp://*:5556
* Publishes random weather updates
* @author Ian Barber <ian (dot) barber (at) gmail (dot) com>
*/
// Prepare our context and publisher
$context = new ZMQContext ();
$publisher = $context->getSocket (ZMQ::SOCKET_PUB);
$publisher-...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...d _allData of my own type SystemData which consists of few List<T> and Dictionary<T> marked as volatile . The system data ( _allData ) is refreshed once in a while and I do it by creating another object called newData and fill it's data structures with new data. When it's done I j...
Difference between
What is the difference between List<? super T> and List<? extends T> ?
14 Answers
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Why does ContentResolver.requestSync not trigger a sync?
...rn as discussed at Google IO - slide 26. My content provider is working, and my sync works when I trigger it from the Dev Tools Sync Tester application, however when I call ContentResolver.requestSync(account, authority, bundle) from my ContentProvider, my sync is never triggered.
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