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683 B
683 B
borrow
Instructions
Complete the signature and the body of the str_len that receives a string or a string literal and returns its length without taking ownership of the value (i.e, borrowing the value)
Expected Function
pub fn str_len(s: ) -> usize {
}
Usage
Here is a possible program to test your function :
fn main() {
let s = "hello";
let s1 = "camelCase".to_string();
println!("\tstr_len(\"{}\") = {}", s, str_len(s));
println!("\tstr_len(\"{}\") = {}", s1, str_len(&s1));
}
And its output:
student@ubuntu:~/[[ROOT]]/test$ cargo run
str_len("hello") = 5
str_len("camelCase") = 9
student@ubuntu:~/[[ROOT]]/test$