大约有 46,000 项符合查询结果(耗时:0.0457秒) [XML]
What is the equivalent of the C# 'var' keyword in Java?
...), don't forget that non-virtual methods are affected by the Type they are cast as.
I can't imagine a real world scenario where this is indicative of good design, but this may not work as you expect:
class Foo {
public void Non() {}
public virtual void Virt() {}
}
class Bar : Foo {
pu...
What is a “slug” in Django?
...If I may provide some historical context :
The term "slug" has to do with casting metal—lead, in this case—out of which the press fonts were made. Every paper then had its fonts factory regularly re-melted and recast in fresh molds, since after many prints they became worn out. Apprentices like...
Any reason to clean up unused imports in Java, other than reducing clutter?
...hey don't get any warning about it until somewhere down the line there's a casting problem or invocation problem.
This is, by the way, not an unrealistic scenario. Every time you had Eclipse ask you which specific version of X you wanted to import, and you picked one from among many packages, is a ...
How do I catch a numpy warning like it's an exception (not just for testing)?
...catch_warnings() placement depending on how big of an umbrella you want to cast with catching errors this way.
share
|
improve this answer
|
follow
|
...
Boost Statechart vs. Meta State Machine
... Minor nit-pick: In release mode, the use of C++ RTTI (dynamic_cast, typeid) is strictly optional with Boost.Statechart.
– user49572
Nov 30 '10 at 7:43
add a comme...
C++ valarray vs. vector
...ample. (By the way, if mean is really int, not double, you may need static_cast<double>(mean).)
– musiphil
Mar 27 '13 at 23:12
...
Returning IEnumerable vs. IQueryable
...
This teaches me when casting to IEnumerable, the underlying IQueryable loses it's IQueryable extension method.
– Yiping
Jul 25 '18 at 2:23
...
Iterator Loop vs index loop [duplicate]
...(it's modulo arithmetic, and x-1 may be bigger than x). You instead should cast the size to an integer before using it.
It may make some sense to use unsigned sizes and indexes (paying a LOT of attention to every expression you write) only if you're working on a 16 bit C++ implementation (16 bit was...
Is there a performance impact when calling ToList()?
...nce), and the methods that start with As do not and will just require some cast or simple operation.
Additional details on List<T>
Here is a little more detail on how List<T> works in case you're interested :)
A List<T> also uses a construct called a dynamic array which needs to...
In C#, why is String a reference type that behaves like a value type?
...
Not only strings are immutable reference types.
Multi-cast delegates too.
That is why it is safe to write
protected void OnMyEventHandler()
{
delegate handler = this.MyEventHandler;
if (null != handler)
{
handler(this, new EventArgs());
}
}
I suppo...
