Pragma CPP_Virtual (GNAT Reference Manual)

### 2.40 Pragma CPP_Virtual ¶

This pragma is now obsolete and, other than generating a warning if warnings on obsolescent features are enabled, is completely ignored. It is retained for compatibility purposes. It used to be required to ensure compatibility with C++, but is no longer required for that purpose because GNAT generates the same object layout as the G++ compiler by default.

See Interfacing to C++ for related information.