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| 1 | fn main() {
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| 2 | ||
| 3 | let x = &mut 5; | |
| 4 | //let y = &x; | |
| 5 | let y = &x; | |
| 6 | //*x = *x + 1; | |
| 7 | ||
| 8 | // y = is address where x is stored | |
| 9 | // y* = x = value of x = address where 5 is stored | |
| 10 | // y** = x* = 5 = literal i32 value 5 | |
| 11 | **y = **y + 5; // Giving compile error "error: cannot assign to data in a `&` reference" | |
| 12 | // Shouldn't the above line be fine since x is a reference to a mutable i32? | |
| 13 | println!("{:p}", y); // 0x7fff230091e8
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| 14 | println!("{:p}", *y); // 0x7fff230091e4
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| 15 | println!("{:p}", x); // 0x7fff230091e4
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| 16 | } |
