...he code (which would not be possible if the call were performed through a vtable). Yes, it is true that template support is not perfect, and C++11 is still lacking a support for concepts; however, I don't see how std::function would save you in that respect. std::function is not an alternative to t...

...9 [cssversion] => 2 [frames] => 1 [iframes] => 1 [tables] => 1 [cookies] => 1 [backgroundsounds] => [vbscript] => [javascript] => 1 [javaapplets] => 1 [activexcontrols] => [cdf] => [aol] => [beta] => 1 [wi...

...f why null is undesirable is that meaningless states should not be representable. Suppose I'm modeling a door. It can be in one of three states: open, shut but unlocked, and shut and locked. Now I could model it along the lines of class Door private bool isShut private bool isLocked an...

...provides to get the information you need. I know it's all there in the SQL tables, but it's best not to think of grabbing data using raw SQL queries, or you'll go mad. Final disclaimer. I've been using Magento for about two or three weeks, so caveat emptor. This is an exercise to get this straight ...

... shared secret, and then use a salt that doesn't change to prevent rainbow table attacks. The username field seems like a good place to put the nonce too, since it is part of the auth. So now you have a clean call like this: nonce = generate_secure_password(length: 16); one_time_key = nonce + '-' +...

...l this does not make sense since a disabled firewall ignores the exception tables and allow everything. Make sure your antivirus software is disabled or it's firewall layer is also disabled to perform a clean test. – Matteus Barbosa Apr 21 '19 at 14:36 ...

...you take up almost 20 Byte. However, the trick is that with so-called immutable value types like integers, you usually don't need all the metadata in the object header: you can just leave all that stuff out, and simply synthesize it (which is VM-nerd-speak for "fake it"), when anyone cares to look....

...rs of many types together in a traditional rectangular dataset. While data.table and plyr might add a certain type of syntax that some might find more comfortable, they are extending and acting on data.frames respectively. – thelatemail Aug 20 '14 at 6:08 ...

...a also has a rich interface for doing so. Vector on its own does not. Notable mentions: hmatrix, a custom array type with extensive bindings to linear algebra packages. Should be bound to use the vector or repa types. ix-shapeable, getting more flexible indexing from regular arrays chalkboard, ...

...all: Thanks! I did a bit of reading and it turns out PHP uses 'nested' hashtables for collisions. That is, instead of a logn structure for collisions it simply uses another hashtable. And I do understand that practically speaking PHP hashtables give O(1) performance, or at least O(1) on average - t...