rust/src/test/compile-fail/mutable-huh-variance-vec1.rs

13 lines
323 B
Rust

fn main() {
// Note: explicit type annot is required here
// because otherwise the inference gets smart
// and assigns a type of ~[mut ~[const int]].
let v: ~[mut ~[int]] = ~[mut ~[0]];
fn f(&&v: ~[mut ~[const int]]) {
v[0] = ~[mut 3]
}
f(v); //~ ERROR (values differ in mutability)
}