rust/tests/ui/consts/const-slice-oob.rs

const FOO: &'static [u32] = &[1, 2, 3];
const BAR: u32 = FOO[5];
//~^ ERROR index out of bounds: the length is 3 but the index is 5

fn main() {
    let _ = BAR;
}
Use the informative error as the main const eval error message 2025-05-28 10:29:08 +00:00			`const FOO: &'static [u32] = &[1, 2, 3];`
rustc_const_eval: track the length and index in IndexOutOfBounds. 2016-05-26 22:09:48 +03:00			`const BAR: u32 = FOO[5];`
Use the informative error as the main const eval error message 2025-05-28 10:29:08 +00:00			`//~^ ERROR index out of bounds: the length is 3 but the index is 5`
Fix LLVM assertion on out-of-bounds const slice index. This turned up as part of #3170. When constructing an `undef` value to return in the error case, we were trying to get the element type of the Rust-level value being indexed instead of the underlying array; when indexing a slice, that's not an array and the LLVM assertion failure reflects this. The regression test is a lightly altered copy of `const-array-oob.rs`. 2015-10-04 13:32:49 -07:00
			`fn main() {`
			`let _ = BAR;`
			`}`