Function encode_alternative_bytes

pub fn encode_alternative_bytes<T: Into<u128>>(
    num: T,
    buf: &mut [u8],
) -> Result<usize, EncodeError>

Expand description

Encodes an unsigned integer into base62, using the alternative digit ordering (0 to 9, then a to z, then A to Z), and writes it to the passed buffer.

The return value is the number of bytes written to the buffer.

§Safety

To encode all possible values of u128, the buffer must be at least 22 bytes long. However a smaller buffer may be used if the value to be encoded is known to be smaller. Base62 encoding adds 37.5% overhead to the size of the input.
The remaining end of the buffer is left untouched. It’s up to the caller to zero it using the returned len if they want to.

extern crate base62;

let mut buf = [0; 22];
base62::encode_bytes(1337_u32, &mut buf);
assert_eq!(&buf[..2], b"LZ");