Trait from_ascii::FromAsciiRadix
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pub trait FromAsciiRadix: Sized { type Err; fn from_ascii_radix(s: &[u8], radix: u8) -> Result<Self, Self::Err>; }
A trait to abstract the idea of creating a new instance of a numeric type from a ascii string with given radix.
It's a near clone of standard FromStr trait.
Associated Types
type Err
The associated error which can be returned from parsing.
Required Methods
fn from_ascii_radix(s: &[u8], radix: u8) -> Result<Self, Self::Err>
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 FromAsciiRadix:
use from_ascii::FromAsciiRadix; let s = b"FA"; let x = i32::from_ascii_radix(s, 16).unwrap(); assert_eq!(250, x);