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enumerator.c: add comment

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2013-08-27 07:56:17 +00:00
parent a5f18c1f9d
commit 9b4b5ad27c
2 changed files with 3 additions and 1 deletions
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@ -1,6 +1,7 @@
Tue Aug 27 16:51:21 2013 Nobuyoshi Nakada <nobu@ruby-lang.org> Tue Aug 27 16:51:21 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* enumerator.c (enumerator_each): ensure argument array size is int. * enumerator.c (enumerator_each): ensure that argument array size
does not overflow at appending.
Tue Aug 27 16:46:05 2013 Nobuyoshi Nakada <nobu@ruby-lang.org> Tue Aug 27 16:46:05 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>

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enumerator.c
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@ -448,6 +448,7 @@ enumerator_each(int argc, VALUE *argv, VALUE obj)
VALUE args = e->args; VALUE args = e->args;
if (args) { if (args) {
#if SIZEOF_INT < SIZEOF_LONG #if SIZEOF_INT < SIZEOF_LONG
/* check int range overflow */
rb_long2int(RARRAY_LEN(args) + argc); rb_long2int(RARRAY_LEN(args) + argc);
#endif #endif
args = rb_ary_dup(args); args = rb_ary_dup(args);