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-rw-r--r--object.c1
-rw-r--r--test/ruby/test_object.rb4
2 files changed, 5 insertions, 0 deletions
diff --git a/object.c b/object.c
index 3a9a556947..6f4b1239c8 100644
--- a/object.c
+++ b/object.c
@@ -304,6 +304,7 @@ special_object_p(VALUE obj)
switch (BUILTIN_TYPE(obj)) {
case T_BIGNUM:
case T_FLOAT:
+ case T_SYMBOL:
return TRUE;
default:
return FALSE;
diff --git a/test/ruby/test_object.rb b/test/ruby/test_object.rb
index c1721de39c..7c1b98f76e 100644
--- a/test/ruby/test_object.rb
+++ b/test/ruby/test_object.rb
@@ -23,6 +23,8 @@ class TestObject < Test::Unit::TestCase
assert_equal true, true.dup
assert_equal nil, nil.dup
assert_equal false, false.dup
+ x = :x; assert_equal x, x.dup
+ x = "bug13145".intern; assert_equal x, x.dup
x = 1 << 64; assert_equal x, x.dup
x = 1.72723e-77; assert_equal x, x.dup
@@ -51,6 +53,8 @@ class TestObject < Test::Unit::TestCase
assert_equal true, true.clone
assert_equal nil, nil.clone
assert_equal false, false.clone
+ x = :x; assert_equal x, x.dup
+ x = "bug13145".intern; assert_equal x, x.dup
x = 1 << 64; assert_equal x, x.clone
x = 1.72723e-77; assert_equal x, x.clone
assert_raise(ArgumentError) {1.clone(freeze: false)}