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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/enum-discriminant/repr128.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/enum-discriminant/repr128.rs')
-rw-r--r-- | tests/ui/enum-discriminant/repr128.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tests/ui/enum-discriminant/repr128.rs b/tests/ui/enum-discriminant/repr128.rs new file mode 100644 index 000000000..00021a07b --- /dev/null +++ b/tests/ui/enum-discriminant/repr128.rs @@ -0,0 +1,45 @@ +// run-pass +#![feature(repr128, core_intrinsics, discriminant_kind)] +//~^ WARN the feature `repr128` is incomplete + +use std::intrinsics::discriminant_value; +use std::marker::DiscriminantKind; + +#[repr(i128)] +enum Signed { + Zero = 0, + Staircase = 0x01_02_03_04_05_06_07_08_09_0a_0b_0c_0d_0e_0f, + U64Limit = u64::MAX as i128 + 1, + SmallNegative = -1, + BigNegative = i128::MIN, + Next, +} + +#[repr(u128)] +enum Unsigned { + Zero = 0, + Staircase = 0x01_02_03_04_05_06_07_08_09_0a_0b_0c_0d_0e_0f, + U64Limit = u64::MAX as u128 + 1, + Next, +} + +fn discr<T, U>(v: T, value: U) +where + <T as DiscriminantKind>::Discriminant: PartialEq<U>, +{ + assert!(discriminant_value(&v) == value); +} + +fn main() { + discr(Signed::Zero, 0); + discr(Signed::Staircase, 0x01_02_03_04_05_06_07_08_09_0a_0b_0c_0d_0e_0f); + discr(Signed::U64Limit, u64::MAX as i128 + 1); + discr(Signed::SmallNegative, -1); + discr(Signed::BigNegative, i128::MIN); + discr(Signed::Next, i128::MIN + 1); + + discr(Unsigned::Zero, 0); + discr(Unsigned::Staircase, 0x01_02_03_04_05_06_07_08_09_0a_0b_0c_0d_0e_0f); + discr(Unsigned::U64Limit, u64::MAX as u128 + 1); + discr(Unsigned::Next, u64::MAX as u128 + 2); +} |