Trait num_traits::Num
source · [−]pub trait Num: PartialEq + Zero + One + NumOps {
type FromStrRadixErr;
fn from_str_radix(
str: &str,
radix: u32
) -> Result<Self, Self::FromStrRadixErr>;
}Expand description
The base trait for numeric types, covering 0 and 1 values,
comparisons, basic numeric operations, and string conversion.
Associated Types
Required methods
fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>
fn from_str_radix(str: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>
Convert from a string and radix <= 36.
Examples
use num_traits::Num;
let result = <i32 as Num>::from_str_radix("27", 10);
assert_eq!(result, Ok(27));
let result = <i32 as Num>::from_str_radix("foo", 10);
assert!(result.is_err());