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c#c++-cliclr

Does a CLR Class Library have to be run in Win32?

I created a CLR project in VS2017.

Included:

  • CLR Class Library(C++) .NET Framework 4.5
  • C# ConsoleApp

There is a simple ref class defined in the Library. The class is called from my C# code. I am fine with its performance but it does not work always.

It depends on how I run it.

  • "Debug" and "x86" works
  • "Debug" and "x64" does not work
  • "Release" and "x86" works
  • "Release" and "x64" does not work

So in Debug and Release it only works when the CLR Class Library is run in Win32.

Do I make a mistake or is this intended behaviour?

Thanks in advance!

Solution

  • To answer my question.

    Hans Passant wrote:

    Changing the solution platform only affects the C++/CLI project, not the C# project. Right-click the C# project > Properties > Build tab to select the jitter you want to use. Untick the "Prefer 32-bit" checkbox for the x64 solution configuration. Again for the Release configuration.

    It worked when I unticked "Prefer 32-bit" in the C# project properties under the Build section. Thanks!