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[rust.git] / src / test / ui / enum-discriminant / issue-70453-generics-in-discr-ice-2.rs
1 #![feature(core_intrinsics)]
2
3 extern crate core;
4 use core::intrinsics::discriminant_value;
5
6 #[repr(usize)]
7 enum MyWeirdOption<T> {
8     None = 0,
9     Some(T) = std::mem::size_of::<T>(),
10     //~^ ERROR generic parameters may not be used in const operations
11 }
12
13 fn main() {
14     assert_eq!(discriminant_value(&MyWeirdOption::<u8>::None), 0);
15     assert_eq!(discriminant_value(&MyWeirdOption::Some(0u8)), 1);
16 }