array.c: freeze in callback

* array.c (rb_ary_sort_bang): must not be modified once frozen even in
  a callback method.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41246 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/array.c b/array.c
index 400403e22f..9bdbe78d5c 100644
--- a/array.c
+++ b/array.c
@@ -2321,6 +2321,7 @@ rb_ary_sort_bang(VALUE ary)
 	ruby_qsort(RARRAY_PTR(tmp), len, sizeof(VALUE),
 		   rb_block_given_p()?sort_1:sort_2, &data);
 
+	rb_ary_modify(ary);
         if (ARY_EMBED_P(tmp)) {
             assert(ARY_EMBED_P(tmp));
             if (ARY_SHARED_P(ary)) { /* ary might be destructively operated in the given block */