安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- c# - How to compare values of generic types? - Stack Overflow
@gstercken: One problem with IComparable overloading the comparison operators is that there are situations where X Equals(Y) should return false, but X CompareTo(Y) should return zero (suggesting neither element is larger than the other) [e g an ExpenseItem may have a natural ordering with respect to TotalCost, and there may be no natural ordering for expense items whose cost is the same, but
- Generic struct over a generic type without type parameter
First, you need to define the interface for the pointer type you want, which can be done using a generic trait For example: trait SharedPointer<T>: Clone { fn new(v: T) -> Self; more, eg: fn get( self) -> T; } Plus a generic trait which defines an associated type which is the type you really want, which must implement your interface:
- How do I make the return type of a method generic?
This may not be a best practice but it worked for me This method takes in an array of generic type and a value to add to the end of the array The array is then copied with the first value stripped and the value taken into the method is added to the end of the array The last thing is that I return the generic array
- void in C# generics? - Stack Overflow
I have a generic method that takes a request and provides a response public Tres DoSomething<Tres, Treq>(Tres response, Treq request) { *stuff* } But I don't always want a response for my request, and I don't always want to feed request data to get a response
- C# Generics and Type Checking - Stack Overflow
In case you happen to have a generic method that returns a generic value but doesn't have generic parameters, you can use default(T) + (T)(object) cast, together with C# 8 pattern matching type checks (as indicated in the other recent answers) Example:
- Nullable type as a generic parameter possible? - Stack Overflow
Multiple generic constraints can't be combined in an OR fashion (less restrictive), only in an AND fashion (more restrictive) Meaning that one method can't handle both scenarios The generic constraints also cannot be used to make a unique signature for the method, so you'd have to use 2 separate method names
- Using a using alias = class with generic types? [duplicate]
using LookupDictionary = System Collections Generic Dictionary<string, int>; Now I want to accomplish the same with a generic type, while preserving it as a generic type: using List<T> = System Collections Generic List<T>; But that doesn't compile, so is there any way to achieve creating this alias while leaving the type as generic?
- Creating a generic method in C# - Stack Overflow
I am trying to combine a bunch of similar methods into a generic method I have several methods that return the value of a querystring, or null if that querystring does not exist or is not in the correct format This would be easy enough if all the types were natively nullable, but I have to use the nullable generic type for integers and dates
|
|
|