Re: SOLVED - Undefined symbol when loading g++ created library

[Adam Nielsen]

Okay, I'm officially a fool now.  The problem was I'd defined a
constructor RootClass::RootClass(void) as well as the 'real'
constructor, but in my code I'd forgotten to implement RootClass(void),
instead seeing the 'real' constructor and not realising I was missing
one :-(

So of course when I came to construct a subclass the code compiled okay
because the (void) constructor was declared in the .h file, but the
linker couldn't find the symbol because the function wasn't actually
there...

Thanks for your help guys, it did help me track down this rather obvious
problem, so sorry about it being something so simple!

Also Paul, in reference to your earlier comment:

> The '_ZN8RootClassC2Ev' is not a valid mangled symbol at all;

That's my fault too - I didn't realise how name mangling worked, and I
changed the name of the class to match the description I'd given earlier
(my *intention* was to avoid confusion - ha!)  The actual name of the
real class is only eight characters long, so the symbol was originally
correct until I mangled it a bit too much ;-)  Sorry about that!

Anyway, thanks again for your help, my code now compiles correctly!

Cheers,
Adam.