Required Methods

fn from_str_radix(str: &str, radix: u32) -> Result<Self, <Self as >::FromStrRadixErr>

Convert from a string and radix (typically 2..=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());

Supported radices

The exact range of supported radices is at the discretion of each type implementation. For primitive integers, this is implemented by the inherent from_str_radix methods in the standard library, which panic if the radix is not in the range from 2 to 36. The implementation in this crate for primitive floats is similar.

For third-party types, it is suggested that implementations should follow suit and at least accept 2..=36 without panicking, but an Err may be returned for any unsupported radix. It's possible that a type might not even support the common radix 10, nor any, if string parsing doesn't make sense for that type.