The example program waiting infinitely for EOF has confused at least one
user: <http://www.ginac.de/pipermail/ginac-list/2014-January/001983.html>
@}
@end example
-With this parser, it's also easy to implement interactive GiNaC programs:
+With this parser, it's also easy to implement interactive GiNaC programs.
+When running the following program interactively, remember to send an
+EOF marker after the input, e.g. by pressing Ctrl-D on an empty line:
@example
#include <iostream>