* range.c: fix SEGV by ("a" .. "z").step(2 ** 30) { }.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15325 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 5 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 3146797a3d..8054265be4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Jan 29 22:27:11 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* range.c: fix SEGV by ("a" .. "z").step(2 ** 30) { }.
+
 Tue Jan 29 21:59:16 2008  Tanaka Akira  <akr@fsij.org>
 
 	* enc/euc_tw.c (euctw_islead): 0x8e is a leading byte.
diff --git a/range.c b/range.c
index 7999283b95..cc254d660a 100644
--- a/range.c
+++ b/range.c
@@ -252,8 +252,7 @@ step_i(VALUE i, void *arg)
 	iter[0] -= INT2FIX(1) & ~FIXNUM_FLAG;
     }
     else {
-	VALUE one = INT2FIX(1);
-	iter[0] = rb_funcall(iter[0], '-', 1, &one);
+	iter[0] = rb_funcall(iter[0], '-', 1, INT2FIX(1));
     }
     if (iter[0] == INT2FIX(0)) {
 	rb_yield(i);