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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/cast/casts-differing-anon.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/cast/casts-differing-anon.rs')
-rw-r--r-- | src/test/ui/cast/casts-differing-anon.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/cast/casts-differing-anon.rs b/src/test/ui/cast/casts-differing-anon.rs new file mode 100644 index 000000000..d4a0f9613 --- /dev/null +++ b/src/test/ui/cast/casts-differing-anon.rs @@ -0,0 +1,22 @@ +use std::fmt; + +fn foo() -> Box<impl fmt::Debug+?Sized> { + let x : Box<[u8]> = Box::new([0]); + x +} +fn bar() -> Box<impl fmt::Debug+?Sized> { + let y: Box<dyn fmt::Debug> = Box::new([0]); + y +} + +fn main() { + let f = foo(); + let b = bar(); + + // this is an `*mut [u8]` in practice + let f_raw : *mut _ = Box::into_raw(f); + // this is an `*mut fmt::Debug` in practice + let mut b_raw = Box::into_raw(b); + // ... and they should not be mixable + b_raw = f_raw as *mut _; //~ ERROR is invalid +} |