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What is “rvalue reference for *this”?
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If a class instance is not const, overload resolution will preferentially select the non-const version. If the instance is const, the user can only call the const version. And the this pointer is a const pointer, so the instance cannot be changed.
What "r-value reference for this` does is allow yo...
Give examples of functions which demonstrate covariance and contravariance in the cases of both over
...er appears is the return type from the next method, so it can be safely up-cast to T. But if you have S extends T, you can also assign Iterator<S> to a variable of type Iterator<? extends T>. For example if you are defining a find method:
boolean find(Iterable<Object> where, Objec...
How to convert string into float in JavaScript?
...to do this? :p
var str = '3.8';ie
alert( +(str) + 0.2 );
+(string) will cast string into float.
Handy!
So in order to solve your problem, you can do something like this:
var floatValue = +(str.replace(/,/,'.'));
share...
“elseif” syntax in JavaScript
... a branch whose condition is merely "truthy" will not be executed. You can cast a truthy value to true with double negation: !!condition.
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Mockito.any() pass Interface with Generics
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You can just cast it, adding suppress warnings if you like:
@SuppressWarnings("unchecked")
AsyncCallback<ResponseX> callback = Mockito.any(AsyncCallback.class)
If Java allowed 'generic' generics they could have a method like ...
Colorize logs in eclipse console
...ole plugin. He mentioned that Grep console 3 is has been released.
Screen cast : http://www.youtube.com/watch?v=fXjgGZAxToc
Update Sites
Grep Console 2
http://eclipse.musgit.com
(requires Eclipse 3.4 (Ganymede) or higher and Java 5.0 or higher)
Grep Console 3
http://eclipse.schedenig.name
(...
Use of “instanceof” in Java [duplicate]
... of this operator indicates design flaws. The abstraction that needs to be cast to the concrete type doesn't provide enough information. It's either just some bad abstraction or abstraction that is used in a wrong domain. You can check detailed explanation with an example here: medium.com/@aerokhin/...
Number of occurrences of a character in a string [duplicate]
...Regex.Matches(test, @"([\w\d]+)=([\w\d]+)[&$]*")
.Cast<Match>()
.ToDictionary(m => m.Groups[1].Value, m => m.Groups[2].Value);
var count = keyValues.Count - 1;
shar...
Filtering DataGridView without changing datasource
...at you are using a DataTable. If you are using something else, check your casting. "as DataTable" in my example.
– Brad Bruce
Jan 25 '18 at 1:22
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How to get IntPtr from byte[] in C#
... rather slow. Faster is to copy the bytes in a for loop. Even faster is to cast the byte array to a ulong array, copy as much ulong as fits in the byte array, then copy the possible remaining 7 bytes (the trail that is not 8 bytes aligned). Fastest is to pin the byte array in a fixed statement as pr...