Trait from_ascii::FromAscii [−] [src]

pub trait FromAscii: Sized {
    type Err;
    fn from_ascii(s: &[u8]) -> Result<Self, Self::Err>;
}

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

It's a near clone of standard FromStr trait.

Associated Types

The associated error which can be returned from parsing.

Required Methods

Parses a ascii string s to return a value of this type.

If parsing succeeds, return the value inside Ok, otherwise when the string is ill-formatted return an error specific to the inside Err. The error type is specific to implementation of the trait.

Examples

Basic usage with i32, a type that implements FromAscii:

use from_ascii::FromAscii;

let s = b"5";
let x = i32::from_ascii(s).unwrap();

assert_eq!(5, x);

Implementors