-SCM scm_i_port_with_print_state (SCM port, SCM print_state);
-SCM_API void scm_intprint (long n, int radix, SCM port);
+SCM_INTERNAL SCM scm_i_port_with_print_state (SCM port, SCM print_state);
+SCM_INTERNAL void scm_i_display_substring (SCM str, size_t start, size_t end,
+ SCM port);
+SCM_API void scm_intprint (scm_t_intmax n, int radix, SCM port);
+SCM_API void scm_uintprint (scm_t_uintmax n, int radix, SCM port);