Trait core::str::FromStr
[−]
[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`s` to return a value of this type.
If parsing succeeds, return the value inside Ok`Ok, otherwise when the string is ill-formatted return an error specific to the inside`, otherwise
when the string is ill-formatted return an error specific to the
inside Err`Err`. The error type is specific to implementation of the trait.