void c_type_print_args (struct type *, struct ui_file *, int, enum language,
const struct type_print_options *);
+/* Print <unknown return type> to stream STREAM. */
+
+void type_print_unknown_return_type (struct ui_file *stream);
+
+/* Throw an error indicating that the user tried to use a symbol that
+ has unknown type. SYM_PRINT_NAME is the name of the symbol, to be
+ included in the error message. */
+extern void error_unknown_type (const char *sym_print_name);
+
extern void val_print_not_allocated (struct ui_file *stream);
extern void val_print_not_associated (struct ui_file *stream);