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Editorial Team
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Asked: 2026-05-19T00:33:58+00:00

I’ve seen contradictory answers on the internet with regard to whether C++/CLI is a

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I’ve seen contradictory answers on the internet with regard to whether C++/CLI is a superset of C++ or not.

The accepted answer on this question claims that “technically no”, but doesn’t provide an examples of non-C++/CLI code that conforms to ISO C++. Another answer on that question cites a book that says the opposite.

So, can you please provide accurate answers with example code that fails on C++/CLI or cite a trusted source (MSDN for example) on this matter?

I had someone this topic come up today and thought I would like to inform myself, but I didn’t find any clear answer elsewhere!

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1 Answer

  1. Editorial Team

    Valid C++, invalid C++/CLI:

    int main()
{
    int gcnew = 42;
}

    gcnew, generic, and nullptr are all reserved words in C++/CLI; nullptr isn’t really an issue in C++0x, of course. Herb Sutter blogged about C++/CLI keywords: Under the hood in 2003.

    For what it’s worth, when I was working on a large mixed codebase (both C++ and C++/CLI), I never ran into syntax issues or trivial issues like this. The giant issue with C++/CLI (in my opinion, of course) is that native code and managed code have completely different resource management paradigms, and it’s really easy when writing mixed code to forget which paradigm you need for certain things. I fixed a lot of errors that were due either to an assumption that managed resources were destroyed deterministically or that native resources would be cleaned up by the garbage collector.

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