43 lines
811 B
Rust
43 lines
811 B
Rust
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use std::fmt::Debug;
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use std::ptr;
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use std::rc::Rc;
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use std::sync::Arc;
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#[warn(clippy::vtable_address_comparisons)]
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fn main() {
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let a: *const dyn Debug = &1 as &dyn Debug;
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let b: *const dyn Debug = &1 as &dyn Debug;
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// These should fail:
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let _ = a == b;
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let _ = a != b;
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let _ = a < b;
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let _ = a <= b;
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let _ = a > b;
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let _ = a >= b;
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ptr::eq(a, b);
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let a = &1 as &dyn Debug;
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let b = &1 as &dyn Debug;
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ptr::eq(a, b);
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let a: Rc<dyn Debug> = Rc::new(1);
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Rc::ptr_eq(&a, &a);
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let a: Arc<dyn Debug> = Arc::new(1);
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Arc::ptr_eq(&a, &a);
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// These should be fine:
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let a = &1;
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ptr::eq(a, a);
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let a = Rc::new(1);
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Rc::ptr_eq(&a, &a);
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let a = Arc::new(1);
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Arc::ptr_eq(&a, &a);
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let a: &[u8] = b"";
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ptr::eq(a, a);
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}
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