I found two internal functions in BCX that hinted that the following was possible. I did a little
research and found that this example is completely legitimate in C++ and extended compilers
like LccWin32 and Pelles C.
Let your imagination go crazy!
PRINT foo$( "BCX says ..." )
PRINT foo$( )
FUNCTION foo$ OPTIONAL ( a$ = "Hello" AS LPCTSTR, b$ = ", World!" AS LPCTSTR )
IF a$ <> "Hello" THEN
FUNCTION = a$
ELSE
FUNCTION = a$ + b$
END IF
END FUNCTION
