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Diffstat (limited to 'src/test/ui/consts/promotion-mutable-ref.rs')
-rw-r--r-- | src/test/ui/consts/promotion-mutable-ref.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/consts/promotion-mutable-ref.rs b/src/test/ui/consts/promotion-mutable-ref.rs new file mode 100644 index 000000000..d103c5a9d --- /dev/null +++ b/src/test/ui/consts/promotion-mutable-ref.rs @@ -0,0 +1,17 @@ +// run-pass +#![feature(const_mut_refs)] + +static mut TEST: i32 = { + // We must not promote this, as CTFE needs to be able to mutate it later. + let x = &mut [1,2,3]; + x[0] += 1; + x[0] +}; + +// This still works -- it's not done via promotion. +#[allow(unused)] +static mut TEST2: &'static mut [i32] = &mut [0,1,2]; + +fn main() { + assert_eq!(unsafe { TEST }, 2); +} |