1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
|
//@ run-rustfix
struct Test {
a: u32
}
impl Test {
pub fn add(&mut self, value: u32) {
self.a += value;
}
pub fn print_value(&self) {
println!("Value of a is: {}", self.a);
}
}
fn main() {
let mut tests = Vec::new();
for i in 0..=10 {
tests.push(Test {a: i});
}
for test in &tests {
test.add(2); //~ ERROR cannot borrow `*test` as mutable, as it is behind a `&` reference
}
for test in &mut tests {
test.add(2);
}
for test in &tests {
test.print_value();
}
}
|