rust/tests/ui/enum/enum-discrim-autosizing.rs
2023-01-11 09:32:08 +00:00

15 lines
524 B
Rust

// With no repr attribute the discriminant will default to isize.
// On 32-bit architectures this is equivalent to i32 so the variants
// collide. On other architectures we need compilation to fail anyway,
// so force the repr.
#[cfg_attr(not(target_pointer_width = "32"), repr(i32))]
enum Eu64 {
//~^ ERROR discriminant value `0` assigned more than once
Au64 = 0,
//~^NOTE `0` assigned here
Bu64 = 0x8000_0000_0000_0000
//~^NOTE `0` (overflowed from `9223372036854775808`) assigned here
}
fn main() {}