# le_f64 in nom::number::streaming - Rust
Recognizes a little endian 8 bytes floating point number.
Keywords: rust, rustlang, rust-lang, le_f64

# Function nom::number::streaming::le_f64

source · [−]

    pub fn le_f64<I, E: ParseError<I>>(input: I) -> IResult<I, f64, E> where
        I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,

Expand description

Recognizes a little endian 8 bytes floating point number.

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

    use nom::number::streaming::le_f64;

    let parser = |s| {
      le_f64::<_, (_, ErrorKind)>(s)
    };

    assert_eq!(parser(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x41][..]), Ok((&b""[..], 3145728.0)));
    assert_eq!(parser(&[0x01][..]), Err(Err::Incomplete(Needed::new(7))));