Is memory allocated when creating &str?

Question

Rust

I have an array of bytes and I want to convert the first 10 bytes to a string.
if i do String::from_utf8_lossy() it will return &str.
Do I understand correctly that &str is the address of those 10 bytes and in fact the memory will be allocated only when the link is created? Thank you!

Answer 1

There is some misunderstanding here. Memory allocation usually means its allocation in dynamic memory , while variables and arguments live in stack memory .
And now, answering your question:

• Yes, &str is really just an address of bytes and the length of the slice that the address refers to.
  
• No, dynamic memory is not allocated in this case, because storage on the stack is predictable, unambiguous, and sufficient for this case.
  

Answer 2

Forgot about the length ..