Embarcadero和免费OPA UA

Question

I'm trying to get an app working with a PLC. I'm using this library: https://github.com/FreeOpcUa/freeopcua

example code: https://github.com/FreeOpcUa/freeopcua/blob/master/src/examples/example_client.cpp

But when I include the header files(like in the example) from the library it gives an error:

Non-Virtual function 'DateTime::DateTime(const DateTime &)' declared pure.

When I search the specific line of this error it shows me this:

    DateTime(const DateTime&) = default;

I already asked it on the github page, and they are saying it has something to do with my compiler. I never touched it, so it shouldn't be having odd options.

So how can I solve this? And if there is something wrong with my compiler, How can I change my compiler options to get it fixed?

Answer 1

Yes, bcc32 don't allow to create instance of abstract class. So you can change target platform to win64 and compile without errors.

Another way, as Thorsten Schöning said, you can use C++ Builder 10 with bcc32c based CLANG compiler and do it also without errors.