Return local String as a slice (&str)

Question

There are several questions that seem to be about the same problem I\'m having. For example see here and here. Basically I\'m trying to build a String in a loca

Answer 1

Yes you can - the method replace_range provides a work around -

let a = "0123456789";
//println!("{}",a[3..5]);  fails - doesn't have a size known at compile-time
let mut b = String::from(a);
b.replace_range(5..,"");
b.replace_range(0..2,"");
println!("{}",b); //succeeds 

It took blood sweat and tears to achieve this!