Rust 1.61.0 ❤️__<[T]>::as_mut_ptr_range

 

 

 

fn main (){
    let a = [1, 2, 3];
    let x = &a[1] as *const _;
    let y = &5 as *const _;

    println!("{:?}", a.as_ptr_range());
    // .contains(&x));
    // assert!(!a.as_ptr_range().contains(&y));

}

 

결과

Standard Error
   Compiling playground v0.0.1 (/playground)
warning: unused variable: `x`
 --> src/main.rs:3:9
  |
3 |     let x = &a[1] as *const _;
  |         ^ help: if this is intentional, prefix it with an underscore: `_x`
  |
  = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `y`
 --> src/main.rs:4:9
  |
4 |     let y = &5 as *const _;
  |         ^ help: if this is intentional, prefix it with an underscore: `_y`

warning: `playground` (bin "playground") generated 2 warnings
    Finished dev [unoptimized + debuginfo] target(s) in 1.11s
     Running `target/debug/playground`
Standard Output


0x7ffec04ae47c..0x7ffec04ae488

 

 

---

fn main (){
    let a = [1, 2, 3];
    let x = &a[1] as *const _;
    let y = &5 as *const _;

    println!("{:?}", a.as_ptr_range().contains(&x));
    // assert!(!a.as_ptr_range().contains(&y));

}

결과

  Compiling playground v0.0.1 (/playground)
warning: unused variable: `y`
 --> src/main.rs:4:9
  |
4 |     let y = &5 as *const _;
  |         ^ help: if this is intentional, prefix it with an underscore: `_y`
  |
  = note: `#[warn(unused_variables)]` on by default

warning: `playground` (bin "playground") generated 1 warning
    Finished dev [unoptimized + debuginfo] target(s) in 0.74s
     Running `target/debug/playground`
Standard Output




true

 

 

 

 

---

 

https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_mut_ptr

slice - Rust