pitch to string conversion in c++

[Marc Hohl]

Hello list,

I tried to convert a pitch into a string like this:

Pitch *current_pitch = unsmob_pitch (event->get_property ("pitch"));
string pitchstring = current_pitch.to_string ();

and the compiler breaks with

error: request for member 'to_string' in 'current_pitch', which is of 
non-class type 'Pitch*'

But in lily/note-name-engraver.cc I have (simplified):

string s;
s = " ";
Pitch p = *unsmob_pitch (events_[i]->get_property ("pitch"));
s += p.to_string ();

and here it works obviously.

What's wrong with my code?

Thanks in advance!

Marc