In C++ the “^” symbol is the bitwise exclusive or (xor) operator. For a single bit you have 0 ^ 0 = 1 ^ 1 = 0 and 0 ^ 1 = 1 ^ 0 = 1. However, in the question you are refering to it is part of Microsoft special syntax for C++ development … Read more
The C# compiler doesn’t use the [DefaultParameterValue] attribute to set the default value, it uses the .param directive to get the value embedded in the metadata. Barely documented in the CLI spec btw, only Partition II, chapter 15.4.1 mentions that it can have a FieldInit value, 15.4.1.4 is silent about it. That’s where the buck … Read more
We don’t have a compiler for C++/CLI, it would be a very large undertaking for a very small userbase. Consider also that the C++/CLI spec is inherently flawed and non-portable, so being able to compile it wouldn’t help much in the general case. You can compile using the MS .NET compiler and run in mono … Read more
You can use the Linq methods that are defined in the System::Linq namespace, but you’ll have to jump through a couple extra hoops. First, C++/CLI doesn’t support extension methods. However, the extension methods are regular methods defined on various classes in System::Linq, so you can call them directly. List<int>^ list = gcnew List<int>(); int i … Read more
Because it’s not the same thing. From Wikipedia: In computer science, marshalling (sometimes spelled marshaling, similar to serialization) is the process of transforming the memory representation of an object to a data format suitable for storage or transmission. It is typically used when data must be moved between different parts of a computer program or … Read more
public ref class MyConcreteClass : public IMyInterface { public: virtual void __clrcall Foo(String^ value) sealed; virtual property String^ __clrcall MyProperty { String^ get() sealed { String::Empty; } } }; Interfaces need to be defined as virtual. Also note the “public IMy..” after the class decleration, it’s a slighly different syntax than C#. If you can, … Read more
c++/cli can theoretically be used with WPF/Silverlight using the trick of replacing the C# generated from the XAML with a macro definition that can be used inside the main class in a code behind file. I worked out this technique but haven’t had the motivation to take it beyond theory – I’m quite happy mixing … Read more
It’s not a reserved word under ISO standards. Microsoft’s C++/CLI defines array in the cli namespace, and Visual Studio’s syntax highlighting will treat it as a reserved word. This usage would be considered a vendor extension and not a part of any international C or C++ standard. ISO C99 Keywords: auto enum restrict unsigned break … Read more
Ok, tutorial. You have a C++ class NativeClass that you want to expose to C#. class NativeClass { public: void Method(); }; 1) Create a C++/CLI project. Link to your C++ library and headers. 2) Create a wrapper class that exposes the methods you want. Example: #include “NativeClass.h” public ref class NativeClassWrapper { NativeClass* m_nativeClass; … Read more
Same problem here, solved by Deleting all Debug\ and Release\ folders (there were more of them in subfolders where I didn’t expect them) Changing the .sln file manually to fix the name of a referenced C++ project (.vcxproj) which apparently was not renamed when renaming the project in Visual Studio