Can't access memory

[Shane McDaniel]

I have code something like

std::string msgID;
......
function(msgID, .....);


in gdb if I set a break point at the line function() is called, and try to
print msgID I get the following.

$1 = {static npos = Cannot access memory at address 0x2c3f18

yet if I continue, the function gets called properly and everything is
fine.  Why can't I access my variable from gdb?  in other place I can see
std::strings just fine.  Is there a work around for this?

thank you.

-shane