with-cstr

[engber@aristotle.ils.nwu.edu (Mike Engber)]

Could some tell me how LISP strings are represented internally by MCL.

I want to write some efficient code to pass lisp strings to the toolbox.
Calls like TextBox just require a pointer to the first char and you explicitly
pass them the length. Is there a way to get a macptr to the first char
in a LISP string?

I know about with-pstrs - but that limits me to 255 chars + I assume it
makes a copy of the string (maybe not)

I discovered with-cstrs - could someone tell me if that makes a copy of
the string? If not, it should do the trick.

-ME