mirror of https://github.com/rust-lang/rust
34 lines
808 B
Rust
34 lines
808 B
Rust
//@ normalize-stderr-test "\d+ bits" -> "N bits"
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// Tests that are conservative around thin/fat pointer mismatches.
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#![allow(dead_code)]
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use std::mem::transmute;
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fn a<T, U: ?Sized>(x: &[T]) -> &U {
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unsafe { transmute(x) } //~ ERROR cannot transmute between types of different sizes
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}
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fn b<T: ?Sized, U: ?Sized>(x: &T) -> &U {
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unsafe { transmute(x) } //~ ERROR cannot transmute between types of different sizes
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}
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fn c<T, U>(x: &T) -> &U {
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unsafe { transmute(x) }
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}
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fn d<T, U>(x: &[T]) -> &[U] {
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unsafe { transmute(x) }
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}
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fn e<T: ?Sized, U>(x: &T) -> &U {
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unsafe { transmute(x) } //~ ERROR cannot transmute between types of different sizes
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}
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fn f<T, U: ?Sized>(x: &T) -> &U {
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unsafe { transmute(x) } //~ ERROR cannot transmute between types of different sizes
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}
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fn main() { }
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