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- fn main() {
- let s = String::from("hello"); // s comes into scope.
- takes_ownership(s); // s's value moves into the function...
- // ... and so is no longer valid here.
- println!("{}", s);
- let x = 5; // x comes into scope.
- makes_copy(x); // x would move into the function,
- // but i32 is Copy, so it’s okay to still
- // use x afterward.
- } // Here, x goes out of scope, then s. But since s's value was moved, nothing
- // special happens.
- fn takes_ownership(some_string: String) { // some_string comes into scope.
- println!("{}", some_string);
- } // Here, some_string goes out of scope and `drop` is called. The backing
- // memory is freed.
- fn makes_copy(some_integer: i32) { // some_integer comes into scope.
- println!("{}", some_integer);
- } // Here, some_integer goes out of scope. Nothing special happens.
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