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Namespace + functions versus static methods on a class
...l need to search for side effects in all its methods, including the static ones.
Extension I
Adding code to a class' interface.
In C#, you can add methods to a class even if you have no access to it. But in C++, this is impossible.
But, still in C++, you can still add a namespaced function, even...
Why does the default parameterless constructor go away when you create one with parameters
...when you create a constructor taking parameters, the default parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
...
How does having a dynamic variable affect performance?
... call site is part of the Dynamic Language Runtime. The DLR says "hmm, someone is attempting to do a dynamic invocation of a method foo on this here object. Do I know anything about that? No. Then I'd better find out."
The DLR then interrogates the object in d1 to see if it is anything special. Ma...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...ing a MOV shifts the subsequent instructions to different memory addresses
one of those moved instructions was an important conditional branch
that branch was being incorrectly predicted due to aliasing in the branch prediction table
moving the branch eliminated the alias and allowed the branch to b...
How is malloc() implemented internally? [duplicate]
Can anyone explain how malloc() works internally?
3 Answers
3
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What is an existential type?
...
When someone defines a universal type ∀X they're saying: You can plug in whatever type you want, I don't need to know anything about the type to do my job, I'll only refer to it opaquely as X.
When someone defines an existential ty...
ViewBag, ViewData and TempData
...apper around ViewData and exists only in ASP.NET MVC 3.
This being said, none of those two constructs should ever be used. You should use view models and strongly typed views. So the correct pattern is the following:
View model:
public class MyViewModel
{
public string Foo { get; set; }
}
A...
What are important languages to learn to understand different approaches and concepts? [closed]
...ype systems, but do you have experience with "skinnable* type systems? No one has... but they should. Qi is like Lisp in many ways, but its type system will blow your mind.
Actors+Fault-tolerance, Erlang - Erlang's process model gets a lot of the buzz, but its fault-tolerance and hot-code-swappin...
How to design a product table for many kinds of product where each product has many parameters
I do not have much experience in table design. My goal is to create one or more product tables that meet the requirements below:
...
Generating v5 UUID. What is name and namespace?
...l hash or MAC.
Suppose you have a (key,value) store, but it only supports one namespace. You can generate a large number of distinct logical namespaces using type 3 or type 5 UUIDs. First, create a root UUID for each namespace. This could be a type 1 (host+timestamp) or type 4 (random) UUID so long...