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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/consts/const_forget.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/consts/const_forget.rs')
-rw-r--r-- | src/test/ui/consts/const_forget.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/consts/const_forget.rs b/src/test/ui/consts/const_forget.rs new file mode 100644 index 000000000..ec7dde8c9 --- /dev/null +++ b/src/test/ui/consts/const_forget.rs @@ -0,0 +1,20 @@ +// check-pass + +use std::mem::forget; + +const _: () = forget(0i32); +const _: () = forget(Vec::<Vec<Box<i32>>>::new()); + +// Writing this function signature without const-forget +// triggers compiler errors: +// 1) That we use a non-const fn inside a const fn +// 2) without the forget, it complains about the destructor of Box +// +// FIXME: this method cannot be called in const-eval yet, as Box isn't +// const constructable +#[allow(unused)] +const fn const_forget_box<T: ?Sized>(b: Box<T>) { + forget(b); +} + +fn main() {} |