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#![allow(dead_code)]
#![deny(unused_assignments)]
fn f1(x: &mut isize) {
*x = 1; // no error
}
fn f2() {
let mut x: isize = 3; //~ ERROR: value assigned to `x` is never read
x = 4;
x.clone();
}
fn f3() {
let mut x: isize = 3;
x.clone();
x = 4; //~ ERROR: value assigned to `x` is never read
}
fn f4(mut x: i32) { //~ ERROR: value passed to `x` is never read
x = 4;
x.clone();
}
fn f5(mut x: i32) {
x.clone();
x = 4; //~ ERROR: value assigned to `x` is never read
}
// #22630
fn f6() {
let mut done = false;
while !done {
done = true; // no error
continue;
}
}
fn main() {}
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