Im not sure how to state this question, because im not sure where the problem lies. I think its a genetric covariance issue, but the solution might be found somewhere else, maybe in the way the interf
I was testing out covariant return types and came across this problem. class Vehicle { int i = 3; } class Car extends Vehicle{
In my use case I have a class with covariant type Foo[+T] and classes A <: T, B <: T, C <: T,
I have some troubles with the application of polymorphism in this example. This question is similar to my last question
Can anyone tell me how does return type covariance work in the following code? class X { public: int x; };
I am in the process of converting working C# code into C++/CLI, and I\'m having trouble u开发者_运维技巧nderstanding why it does not compile.
I\'m currently reading up on Covariance and Contravariance in C#. All examples have details of objects being convertable and differ because of the accuracy from the Interface implementation e.g.
What is the difference between covarian开发者_如何转开发ce and upcasting, or, more specifically, why are theygiven different names?
Using C#/.NET 4.0 I was hoping the following scenario would be possible: interface IA<out TB> where TB : IB { }
This question already has answers here: Closed 11 years ago. Possible Duplicate: Covariance and Contravariance on the same type argument
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