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Calling C++ class methods via a function pointer
...ference for (think virtual functions). You also need to know the object in order to provide the this implicit parameter, of course.
Having said that you need them, now I'll say that you really need to avoid them. Seriously, member pointers are a pain. It is much more sane to look at object-oriented...
What's the best way to join on the same table twice?
...when it comes to joining the same table multiple times or using subqueries etc.
I would just clean things up a bit:
SELECT t.PhoneNumber1, t.PhoneNumber2,
t1.SomeOtherFieldForPhone1, t2.someOtherFieldForPhone2
FROM Table1 t
JOIN Table2 t1 ON t1.PhoneNumber = t.PhoneNumber1
JOIN Table2 t2 ON t2...
What is the definition of “interface” in object oriented programming
...s (e.g., cable programming) and has outputs (display on the screen, sound, etc.). However, when you look at a TV that is not plugged in, you are projecting your expected semantics into an interface. For all you know, the TV could just explode when you plug it in. However, based on its "interface" yo...
How to reference style attributes from a drawable?
I want to have 2 selectable themes for my application. In order to do that, I defined some attributes, like this:
5 Answers...
How to enable cURL in PHP / XAMPP
...
On Debian with Apache 2:
apt-get install php5-curl
/etc/init.d/apache2 restart
(php4-curl if it's php4)
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Select where count of one field is greater than one
... COUNT(Field1)
FROM Table1
GROUP BY Field1
HAVING COUNT(Field1) > 1
ORDER BY Field1 desc
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How do I prevent an Android device from going to sleep programmatically?
... need to be sure you have the WAKE_LOCK permission set in your manifest in order to use this method.
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What is TypeScript and why would I use it in place of JavaScript? [closed]
...implementations by many different vendors (e.g. Google, Microsoft, Oracle, etc.). The goal of JavaScript is to be the lingua franca of the web.
TypeScript is a superset of the JavaScript language that has a single open-source compiler and is developed mainly by a single vendor: Microsoft. The goal o...
event.preventDefault() function not working in IE
... can use
event.returnValue = false;
to achieve the same result.
And in order not to get an error, you can test for the existence of preventDefault:
if(event.preventDefault) event.preventDefault();
You can combine the two with:
event.preventDefault ? event.preventDefault() : (event.returnValu...
How do I check that multiple keys are in a dict in a single pass?
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For Python 2 switch the order: d.viewkeys() >= set(q). I came here trying to find out why the order matters!
– Veedrac
Apr 28 '14 at 6:09
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