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Is there a use-case for singletons with database access in PHP?
...lient/boss/project manager asks just by a few modifications.
You get the idea. Now lets move on to the objections to singletons and
the unholy crusade against something that is useful:
- Foremost objection is that it makes testing harder.
And really, it does to some extent, even if it can be eas...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
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@supercat If you interact with legacy API the idea is to use marshalling (which can be annotated via attributes). The CLR doesn’t have fixed-size arrays anyway so having non-type template arguments would be of no help here.
– Konrad Rudolph
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Why don't they teach these things in school? [closed]
...trees, and recursion are still as useful as they were 40 years ago. Their idea is generally to give you enough foundations that you can then pick up tools like git and understand what it means when you're told that the underlying datastructure is an acyclic directed graph of SHA-1 hashes, and that ...
Scala 2.8 breakOut
...of a mapping chain using one monad into a different monad type. I have no idea whether that's what how Adriaan Moors (the author) was thinking about it, though!
– Ed Staub
Nov 25 '13 at 20:01
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Separate Back Stack for each tab in Android using Fragments
... Got it to work. Thanks a lot. Uploading the whole project was a good idea! :-)
– Vinay W
Jul 18 '13 at 13:12
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What is state-of-the-art for text rendering in OpenGL as of version 4.1? [closed]
...uad corners from a buffer texture being less of a problem.
This makes the idea of pulling constant data (such as quad sizes) from a buffer texture more attractive. A hypothetical implementation could thus reduce PCIe and memory transfers, as well as GPU memory, to a minimum with an approach like th...
Why should I use a pointer rather than the object itself?
...hings; however other answers have covered that satisfactorily. The general idea though is that in C++ you have much more control on the lifetime of the objects, and on where they will live.
Take home point -- the Object * object = new Object() construct is actually what is closest to typical Java (o...
Running Bash commands in Python
... runs completely separate from Python, and when it finishes, Python has no idea what it did (apart from the vague indicators that it can infer from the exit status and output from the child process). A child generally cannot change the parent's environment; it cannot set a variable, change the work...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
...always true -> (4) it's optimized away into an infinite loop.
gave me idea to compare the assembly code of the OP's code to the assembly code of the following code, with no undefined behaviour.
#include <iostream>
int main()
{
// changed the termination condition
for (int i = 0;...
What is the purpose of the reader monad?
...ther example: I've been prototyping OLAP designs in Haskell recently. One idea here is that of a "hypercube," which is a mapping from intersections of a set of dimensions to values. Here we go again:
newtype Hypercube intersection value = Hypercube { get :: intersection -> value }
One common...