* README.EXT, README.EXT.ja (rb_protect, rb_jump_tag): added.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24945 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 14 insertions, 1 deletions

diff --git a/README.EXT b/README.EXT
index 75f52f71c5..9917d1b496 100644
--- a/README.EXT
+++ b/README.EXT
@@ -1194,7 +1194,20 @@ exception occurs, from func2 otherwise.
 
 Calls the function func1 with arg1 as the argument, then calls func2
 with arg2 if execution terminated.  The return value from
-rb_ensure() is that of func1.
+rb_ensure() is that of func1 when no exception occured.
+
+ VALUE rb_protect(VALUE (*func) (VALUE), VALUE arg, int *state)
+
+Calls the function func with arg as the argument.  If no exception
+occured during func, it returns the result of func and *state is zero.
+Otherwise, it returns Qnil and sets *state to nonzero.  If state is
+NULL, it is not set in both cases.
+
+ void rb_jump_tag(int state)
+
+Continues the exception caught by rb_protect() and rb_eval_string_protect().
+state must be the returned value from those functions.  This function
+never return to the caller.
 
 ** Exceptions and Errors