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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/const-generics/issues/issue-82956.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/const-generics/issues/issue-82956.rs')
-rw-r--r-- | src/test/ui/const-generics/issues/issue-82956.rs | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/issues/issue-82956.rs b/src/test/ui/const-generics/issues/issue-82956.rs new file mode 100644 index 000000000..3539e9b96 --- /dev/null +++ b/src/test/ui/const-generics/issues/issue-82956.rs @@ -0,0 +1,33 @@ +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +pub struct ConstCheck<const CHECK: bool>; + +pub trait True {} +impl True for ConstCheck<true> {} + +pub trait OrdesDec { + type Newlen; + type Output; + + fn pop(self) -> (Self::Newlen, Self::Output); +} + +impl<T, const N: usize> OrdesDec for [T; N] +where + ConstCheck<{N > 1}>: True, + [T; N - 1]: Sized, +{ + type Newlen = [T; N - 1]; + type Output = T; + + fn pop(self) -> (Self::Newlen, Self::Output) { + let mut iter = IntoIter::new(self); + //~^ ERROR: failed to resolve: use of undeclared type `IntoIter` + let end = iter.next_back().unwrap(); + let new = [(); N - 1].map(move |()| iter.next().unwrap()); + (new, end) + } +} + +fn main() {} |