-SCM_API SCM scm_lazy_catch (SCM tag, SCM thunk, SCM handler);
-SCM_API SCM scm_ithrow (SCM key, SCM args, int noreturn);
+SCM_API SCM scm_with_throw_handler (SCM tag, SCM thunk, SCM handler);
+SCM_API SCM scm_ithrow (SCM key, SCM args, int no_return);
+
+/* This throws to the `stack-overflow' key, without running pre-unwind
+ handlers. */
+SCM_API void scm_report_stack_overflow (void);
+
+/* This throws to the `out-of-memory' key, without running pre-unwind
+ handlers. */
+SCM_API void scm_report_out_of_memory (void);