C# generics vs C++ templates - need a clarification about constraints

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What are the differences between Generics in C# and Java… and Templates in C++?

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Hi all,

I am experienced C++ p

Answer 1

C# generics are totally different from C++.

In C#, the compiler basically compiles one class definition for all object types, and a class definition per value type.

In C++, each type gets its own class definitions.

The constraints are just for the compiler so you can infer stuff from other locations.

I'd recommend looking at the Action, Func and Predicate delegates and the associated IEnumerable extension methods. Use lambda functions with those and you'll see what the constraints doing.