Function rscache::parse::be_u32_smart

pub fn be_u32_smart<'a, E: ParseError<&'a [u8]>>(
    buffer: &'a [u8]
) -> IResult<&'a [u8], u32, E>

Reads 2 bytes if the first byte <= -1 after calculations, reads 4 bytes otherwise.

Errors

Parser can reach EOF early if not enough bytes are supplied.

Example

use rscache::parse::be_u32_smart;

let buffer = &[255, 54, 2, 0, 62, 1, 42, 233];

let (buffer, value1) = be_u32_smart(buffer)?;
let (buffer, value2) = be_u32_smart(buffer)?;

assert_eq!(value1, 2134245888);
assert_eq!(value2, 15873);
assert_eq!(buffer, &[42, 233]);