std::str

Trait std::str::FromStrStable [-] [+] [src]

pub trait FromStr {
    type Err;

    fn from_str(s: &str) -> Result<Self, Self::Err>;
}

A trait to abstract the idea of creating a new instance of a type from a string.

Associated Types

type Err

The associated error which can be returned from parsing.

Required Methods

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return an optional value of this type. If the string is ill-formatted, the None is returned.

Implementors