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// Test that attempt to reborrow an `&mut` pointer in an aliasable
// location yields an error.
//
// Example from compiler/rustc_borrowck/borrowck/README.md
fn foo(t0: & &mut isize) {
let t1 = t0;
let p: &isize = &**t0;
**t1 = 22; //~ ERROR cannot assign
}
fn foo3(t0: &mut &mut isize) {
let t1 = &mut *t0;
let p: &isize = &**t0; //~ ERROR cannot borrow
**t1 = 22;
}
fn foo4(t0: & &mut isize) {
let x: &mut isize = &mut **t0; //~ ERROR cannot borrow
*x += 1;
}
fn main() {
}
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