By Nishant Sivakumar
C++ is the language of selection for hundreds of thousands of purposes and hundreds of thousands of strains of code. With C++/CLI, builders can combine latest C++ code into the .NET platform with no rewriting their purposes. This booklet explores the C++/CLI syntax, teaches the right way to combine local C++ and controlled .NET code, and exhibits tips on how to combine C++ with home windows kinds, WPF (Avalon), and WCF (Indigo).
think taking a C++-based application you have been utilizing for a decade and giving it a snazzy new interface utilizing home windows Presentation starting place. How approximately making your previous enterprise purposes consult your new ones utilizing home windows verbal exchange starting place. C++/CLI makes this--and more--possible. C++/CLI in Action exhibits you ways to bridge the distance among your latest C++ code and the .NET platform. C++/CLI in Action may also help you if:
- You're hesitant emigrate to .NET since it ability rewriting code in C# or VB.
- You have major C++ services that you really want to leverage within the .NET.
- You merely have to use items of the .NET framework, comparable to home windows types or net services.
there is not any fluff right here. Designed for readers who already be aware of C++, this publication starts off by way of educating the original facets of the C++/CLI language. After a short travel throughout the fundamentals, readers paintings via examples of integrating common C++ into the .NET-based functions and construction courses that blend C++ and .NET code for max functionality and efficiency.
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Additional resources for C++ CLI in Action (Manning)
The reason for this error is that, unlike in standard C++, the compiler won’t generate a default copy constructor for your class. At least one reason is that all ref objects implicitly derive from System::Object, which doesn’t have a copy constructor. Even if the compiler attempted to generate a copy constructor for a ref type, it would fail, because it wouldn’t be able to access the base class copy constructor (it doesn’t exist). To make that clearer, think of a native C++ class Base with a private copy constructor, and a derived class Derived (that publicly inherits from Base).
Use value types just as you’d use primitive types, such as ints and chars, and you should be OK. When you need simple types, without the complexities of virtual functions, constructors and operators, value types are the more efficient option, because they’re allocated on the stack. Stack access will be faster than accessing an object from the garbagecollected CLR heap. If you’re wondering why this is so, the stack implementation is far simpler when compared to the CLR heap. When you consider that the CLR heap also intrinsically supports a complex garbage-collection algorithm, it becomes obvious that the stack object is more efficient.
I also 36 CHAPTER 1 Introduction to C++/CLI suggest that you stay away from using two overloads, unless it’s a specific case of a library that will be exclusively used by C++ callers; even then, you must consider the issue of code duplication. Now you know that if you need copy construction on your ref types, you must implement it yourself.