diff -up octave-4.4.1/libinterp/corefcn/input.cc.crash octave-4.4.1/libinterp/corefcn/input.cc
--- octave-4.4.1/libinterp/corefcn/input.cc.crash 2018-11-11 17:27:39.588037444 -0700
+++ octave-4.4.1/libinterp/corefcn/input.cc 2018-11-11 17:30:42.344208272 -0700
@@ -255,7 +255,7 @@ namespace octave
octave_diary << retval;
- if (retval.back () != '\n')
+ if (!retval.empty () && retval.back () != '\n')
octave_diary << "\n";
}
else