rocket::mtls::x509::der_parser::asn1_rs::nom::number::streaming

Function be_i32

Source 
pub fn be_i32<I, E>(input: I) -> Result<(I, i32), Err<E>>
where
    E: ParseError<I>,
    I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,
Available on crate feature mtls only.
Expand description

Recognizes a big endian signed 4 bytes integer.

Streaming version: Will return Err(nom::Err::Incomplete(_)) if there is not enough data.

use nom::number::streaming::be_i32;

let parser = be_i32::<_, (_, ErrorKind)>;

assert_eq!(parser(&b"\x00\x01\x02\x03abcd"[..]), Ok((&b"abcd"[..], 0x00010203)));
assert_eq!(parser(&b""[..]), Err(Err::Incomplete(Needed::new(4))));