SCM_API void scm_uintprint (scm_t_uintmax n, int radix, SCM port);
SCM_API void scm_ipruk (char *hdr, SCM ptr, SCM port);
SCM_API void scm_iprlist (char *hdr, SCM exp, int tlr, SCM port, scm_print_state *pstate);
+SCM_INTERNAL void scm_i_print_symbol_name (SCM sym, SCM port);
SCM_API void scm_print_symbol_name (const char *str, size_t len, SCM port);
SCM_API void scm_prin1 (SCM exp, SCM port, int writingp);
SCM_API void scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate);