implement PartialEq<str> for string new types

[ModProg]

No description provided.

[ModProg]

not sure about allowing both w/ and w/o the trailing \0. As the trailing \0 is an implementation detail, I could also remove the support for comparing with strings containing the \0.

[diwic]

The strings are guaranteed to have a trailing nul byte (at least right now), meaning there is no need to do any special handling based on that they maybe have a trailing nul byte.

[ModProg]

The strings are guaranteed to have a trailing nul byte (at least right now), meaning there is no need to do any special handling based on that they maybe have a trailing nul byte.

Yes, the internal string of, e.g., Signature has always a \0.

What I meant was the RHS &str having a trailing \0 or not, i.e., are both Signature::new("s") == "s" && Signature::new("s") == "s\0" or just Signature::new("s") == "s" && Signature::new("s") != "s\0".

[diwic]

Right. So then I'll say that, since Signature and friends deref to str without the trailing zero, then what you should be equal to is a str without a trailing zero and nothing else.

[ModProg]

Implementation now is:

    assert_eq!(Signature::new("s").unwrap(), "s");
    assert!(Signature::new("s").unwrap() != "s\0");

[diwic]

Thanks!