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Why is volatile needed in C?
...}
Looks easy, but it can fail because the compiler is free to change the order in which data and commands are written. This would cause our little gadget to issue commands with the previous data-value. Also take a look at the wait while busy loop. That one will be optimized out. The compiler will ...
Compare equality between two objects in NUnit
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thanks. however, I had to switch the order of the actual and expected params since converntion is that expected is a param before actual.
– Valamas
Sep 7 '11 at 5:49
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Should __init__() call the parent class's __init__()?
... subclass needs "something", but whether the base class needs something in order to be a valid base class instance and work correctly. As implementer of the derived class, base class internals are things that you cannot/should not know, and even if you do because you wrote both or internals are docu...
MySQL error: key specification without a key length
...uations not the best one. Your key is consisting of two columns and column order is important.
– MrD
Nov 22 '15 at 12:19
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What is the difference between a pseudo-class and a pseudo-element in CSS?
...ld be accessed via DOM manipulation (you could use window.location.hash in order to find the object with JavaScript), but this "cannot be expressed using the other simple selectors".
So basically a pseudo-class will refine the set of selected elements as any other simple selector in a sequence of ...
MVVM in WPF - How to alert ViewModel of changes in Model… or should I?
... A good way to think about it - Say you want to make 2 versions of your
ordering system. The first is in WPF, and the second is a web
interface.
The shared logic that deals with the orders themselves (sending
emails, entering into DB, etc) is the Model. Your application is
exposing t...
Proper MIME type for OTF fonts
...pes for approval.
For those wishing to embed the typeface in the proper order in your CSS please visit this article. But again, I've had luck with the following order:
@font-face {
font-family: 'my-web-font';
src: url('webfont.eot');
src: url('webfont.eot?#iefix') format('embedded-op...
Detect Browser Language in PHP
...[^,\d]+([\d.]+))?~', strtolower($http_accept_language), $matches, PREG_SET_ORDER);
foreach($matches as $match) {
list($a, $b) = explode('-', $match[1]) + array('', '');
$value = isset($match[2]) ? (float) $match[2] : 1.0;
if(isset($available_languages[$match[1]])) {
...
Removing duplicate rows in vi?
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awk '!x[$0]++' yourfile.txt if you want to preserve the order (i.e., sorting is not acceptable). In order to invoke it from vim, :! can be used.
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The ALTER TABLE statement conflicted with the FOREIGN KEY constraint
...e problem was, so I'll give a layman's example. If you have a table named 'Orders' and a table named 'Customers', and you've deleted some old customers, but not their orders, you will get this error if you decide to make a foreign key from Orders.CustomerId to Customers.Id. Some orders don't have a...