That might be the dumbest Rustlang question ever but I promise I tried my best to find the answer in the documentation or any other place on the web.
I can convert a string to a vector of bytes like this:
let bar = bytes!("some string");
Unfortunately I can't do it this way
let foo = "some string";
let bar = bytes!(foo);
Because bytes! expects a string literal.
But then, how do I get my foo converted into a vector of bytes?
(&str).as_bytes gives you a view of a string as a &[u8] byte slice (that can be called on String since that derefs to str, and there's also String.into_bytes will consume a String to give you a Vec<u8>.
Use the .as_bytes version if you don't need ownership of the bytes.
fn main() {
let string = "foo";
println!("{:?}", string.as_bytes()); // prints [102, 111, 111]
}
BTW, The naming conventions for conversion functions are helpful in situations like these, because they allow you to know approximately what name you might be looking for.
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