Posts Tagged interface

C++ For C# Developers: Part 14 – Inheritance

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Now that we know how to initialize structs and other types in C++, we can take a look at inheritance and learn how to make structs derive from each other. There’s a lot of extended functionality here compared to C# class inheritance. Read on to learn the basics as well as advanced features like multiple inheritance and virtual inheritance!

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Function Types: A Spectrum

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C# gives us lots of types of functions for us to call. We must constantly decide between them. Should this function be static? Should it be virtual? There are many factors that go into making the decision. Today we’ll look at the function types as a spectrum and hopefully get a little perspective on our options.

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DIY Virtual Functions in Burst

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Now that we’ve seen how function pointers work and perform in Burst, let’s use them to build a higher-level feature: virtual functions!

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5 Common Misuses of Collections

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Collection types like List<T> and Dictionary<TKey, TValue> are fundamental tools in C#. Sadly, I keep seeing the same misuses of them in codebase after codebase. Today we’ll look at the top 5 problems and learn how to easily avoid them!

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C++ Scripting: Part 30 – Overloaded Types and Decimal

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C# allows for overloading not just function names, but also type names. This is used throughout the .NET and Unity APIs for interfaces like IEnumerable and IEnumerable<T>, classes like UnityEvent<T0> and UnityEvent<T0, T1>, and delegates like Action<T1, T2> and Action<T1, T2, T3>. C++, however, does not support type overloading. Today’s article explores how to deal with this and, once we’ve solved the issue, what extra C# features we’ll have access to in C++.

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IL2CPP Function and Boxing Costs

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Today we continue looking at the C++ that IL2CPP generates for our C# code by calling various types of functions and using boxing and unboxing. Just how much performance overhead do these entail? Read on to find out!

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C++ Scripting: Part 25 – Full Type Hierarchy

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So far we’ve had C++ classes that derive from other classes, but not their interfaces. Today we’ll make C++ classes implement all their interfaces to form a full type hierarchy. Along the way we’ll learn about how inheritance works in C++, specifically the esoteric form known as “virtual inheritance.”

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C++ Scripting: Part 23 – Base Type APIs

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Now that we have complete support overriding everything—methods, properties, indexers, events—that can be overridden in a base class or interface, there’s a bit of tidying up to do. In today’s article, we’ll take steps to make base types much more useful by inserting them into their proper place in the type hierarchy.

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C++ Scripting: Part 22 – Full Base Type Support

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Today we’ll complete our ability to use C++ classes to derive from C# classes and implement C# interfaces. So far we’ve been able to override methods, properties, and indexers. Today we’ll add the ability to override events and derive from classes that don’t have a default constructor.
Those are the last two pieces of the puzzle that will allow us to derive from any C# base type with a C++ class. Read on for all the details about how this works.

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C++ Scripting: Part 19 – Implement C# Interfaces with C++ Classes

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Implementing interfaces and deriving from classes is commonplace in many codebases. Today we’ll make it so C++ classes can implement C# interfaces and derive from C# classes. This means our C++ game code will be able to implement custom IComparer classes for sorting a List and derive custom EventArgs for dispatching in events. Read on to see how this is implemented and how to use it in our projects.

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