[−][src]Function btoi::btoi_radix

pub fn btoi_radix<I>(bytes: &[u8], radix: u32) -> Result<I, ParseIntegerError> where
    I: FromPrimitive + Zero + CheckedAdd + CheckedSub + CheckedMul, 

Converts a byte slice in a given base to an integer.

Like btou_radix, but numbers may optionally start with a sign (- or +).

Errors

Returns ParseIntegerError for any of the following conditions:

  • bytes has no digits
  • not all characters of bytes are 0-9, a-z, A-Z, exluding an optional leading sign
  • not all characters refer to digits in the given radix, exluding an optional leading sign
  • the number overflows or underflows I

Panics

Panics if radix is not in the range 2..=36 (or in the pathological case that there is no representation of radix in I).

Examples

assert_eq!(Ok(10), btoi_radix(b"a", 16));
assert_eq!(Ok(10), btoi_radix(b"+a", 16));
assert_eq!(Ok(-42), btoi_radix(b"-101010", 2));