trpl-zh-cn/listings/ch20-advanced-features/listing-20-03/src/main.rs

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240 B
Rust
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2022-02-06 16:43:51 +08:00
fn main() {
// ANCHOR: here
let mut num = 5;
let r1 = &num as *const i32;
let r2 = &mut num as *mut i32;
unsafe {
println!("r1 is: {}", *r1);
println!("r2 is: {}", *r2);
}
// ANCHOR_END: here
}