Error with class definition in header file

Brenda 21

I built the example program from the "Header files (C++)" guide, and when I compile the solution I get a number of errors because the class 'my_class' is not recognized by 'my_class.cpp' nor 'my_program.cpp' (codes C2065, C2653, etc).

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WayneAKing 4,921 Reputation points

2020-09-06T01:14:16.007+00:00
I presume you are referring to the example here:

Header files (C++)
https://learn.microsoft.com/en-us/cpp/cpp/header-files-cpp?view=vs-2019

It sounds like you didn't create the header file or add it to the project:

Wayne
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Brenda 21 Reputation points

2020-09-06T16:13:51.737+00:00

Thanks for the help! Although I did create the my_class.h header file and it appeared in my solution explorer, I realized I had not saved the content before compiling. I hit save all and the code compiled successfully.
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Tim Roberts 81 Reputation points

2020-09-06T01:12:06.92+00:00

My guess is you didn't copy the code from that page exactly. You have some kind of typo. Double check that your my_class.h has "namespace N" and "class my_class", spelled exactly like that.
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WayneAKing 4,921 Reputation points

2020-09-06T01:19:32.5+00:00

Note that the code samples on that page have a "Copy" button that allows
you to automatically copy the code to Windows clipboard. Then all you have
to do is paste it into the relevant file in the VS IDE. No typing of the
code examples should be necessary, so there is minimal possibility of
making typo errors.

Wayne
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Error with class definition in header file

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