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#[test]
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#[allow(suspicious_double_ref_op)]
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fn test_borrowed_clone() {
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let x = 5;
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let y: &i32 = &x;
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let z: &i32 = (&y).clone();
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assert_eq!(*z, 5);
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}
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#[test]
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fn test_clone_from() {
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let a = Box::new(5);
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let mut b = Box::new(10);
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b.clone_from(&a);
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assert_eq!(*b, 5);
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}
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