pub fn btou<I>(bytes: &[u8]) -> Result<I, ParseIntegerError>
Expand description
Converts a byte slice to an integer. Signs are not allowed.
§Errors
Returns ParseIntegerError
for any of the following conditions:
bytes
is empty- not all characters of
bytes
are0-9
- the number overflows
I
§Panics
Panics in the pathological case that there is no representation of 10
in I
.
§Examples
assert_eq!(Ok(12345), btou(b"12345"));
assert!(btou::<u8>(b"+1").is_err()); // only btoi allows signs
assert!(btou::<u8>(b"256").is_err()); // overflow