From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/structs-enums/small-enum-range-edge.rs | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 src/test/ui/structs-enums/small-enum-range-edge.rs (limited to 'src/test/ui/structs-enums/small-enum-range-edge.rs') diff --git a/src/test/ui/structs-enums/small-enum-range-edge.rs b/src/test/ui/structs-enums/small-enum-range-edge.rs new file mode 100644 index 000000000..306129479 --- /dev/null +++ b/src/test/ui/structs-enums/small-enum-range-edge.rs @@ -0,0 +1,27 @@ +// run-pass +#![allow(non_upper_case_globals)] + +// Tests the range assertion wraparound case when reading discriminants. + +#[repr(u8)] +#[derive(Copy, Clone)] +enum Eu { Lu = 0, Hu = 255 } + +static CLu: Eu = Eu::Lu; +static CHu: Eu = Eu::Hu; + +#[repr(i8)] +#[derive(Copy, Clone)] +enum Es { Ls = -128, Hs = 127 } + +static CLs: Es = Es::Ls; +static CHs: Es = Es::Hs; + +pub fn main() { + assert_eq!((Eu::Hu as u8).wrapping_add(1), Eu::Lu as u8); + assert_eq!((Es::Hs as i8).wrapping_add(1), Es::Ls as i8); + assert_eq!(CLu as u8, Eu::Lu as u8); + assert_eq!(CHu as u8, Eu::Hu as u8); + assert_eq!(CLs as i8, Es::Ls as i8); + assert_eq!(CHs as i8, Es::Hs as i8); +} -- cgit v1.2.3