rustBorrow example in Rust
A borrow in Rust is when a variable is given temporary access to a resource. This allows the variable to use the resource without taking ownership of it.
let mut x = 5;
let y = &x;
println!("x = {}", x);
println!("y = {}", y);
Output example
x = 5
y = 5
In this example, x is a mutable variable with the value of 5. y is a borrow of x, meaning it has access to the value of x without taking ownership of it. When we print out the values of x and y, we can see that they are both 5.
Code explanation
let mut x = 5;: This declares a mutable variablexwith the value of 5.let y = &x;: This declares a borrow ofxcalledy.println!("x = {}", x);: This prints out the value ofx.println!("y = {}", y);: This prints out the value ofy.
Helpful links
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- When to use borrow in Rust
- How to return borrow in Rust
- Example of borrow_mut in Rust
- Rust unsafe borrow example
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- How to borrow int in Rust
- Rust partial borrow example
- How to borrow iterator in Rust
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