merge revision(s) 58693: [Backport #13558]

	array.c: check position to insert

	* array.c (rb_ary_insert): check position to insert even if no
	  elements to be inserted.  [ruby-core:81125] [Bug #13558]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@59398 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/array.c b/array.c
index 15a4d47a84..05e6069ad3 100644
--- a/array.c
+++ b/array.c
@@ -1775,8 +1775,8 @@ rb_ary_insert(int argc, VALUE *argv, VALUE ary)
 
     rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
     rb_ary_modify_check(ary);
-    if (argc == 1) return ary;
     pos = NUM2LONG(argv[0]);
+    if (argc == 1) return ary;
     if (pos == -1) {
 	pos = RARRAY_LEN(ary);
     }