[−][src]Function postcard::to_slice_cobs
pub fn to_slice_cobs<'a, 'b, T: ?Sized>(
value: &'b T,
buf: &'a mut [u8]
) -> Result<&'a mut [u8]> where
T: Serialize,
Serialize a T
to the given slice, with the resulting slice containing
data in a serialized then COBS encoded format. The terminating sentinel 0x00
byte is included
in the output buffer.
When successful, this function returns the slices containing:
- A slice that contains the serialized and encoded message
- A slice that contains the unused portion of the given buffer
Example
use postcard::to_slice_cobs; let mut buf = [0u8; 32]; let used = to_slice_cobs(&false, &mut buf).unwrap(); assert_eq!(used, &[0x01, 0x01, 0x00]); let used = to_slice_cobs("1", &mut buf).unwrap(); assert_eq!(used, &[0x03, 0x01, b'1', 0x00]); let used = to_slice_cobs("Hi!", &mut buf).unwrap(); assert_eq!(used, &[0x05, 0x03, b'H', b'i', b'!', 0x00]); let data: &[u8] = &[0x01u8, 0x00, 0x20, 0x30]; let used = to_slice_cobs(data, &mut buf).unwrap(); assert_eq!(used, &[0x03, 0x04, 0x01, 0x03, 0x20, 0x30, 0x00]);