blob: 1f1cb1c218b945ce3d5acafd2eb6316fc9d892bf [file] [log] [blame] [edit]
/// Encode u64 as varint.
/// Panics if buffer length is less than 10.
#[inline]
pub fn encode_varint64(mut value: u64, buf: &mut [u8]) -> usize {
assert!(buf.len() >= 10);
unsafe {
let mut i = 0;
while (value & !0x7F) > 0 {
*buf.get_unchecked_mut(i) = ((value & 0x7F) | 0x80) as u8;
value >>= 7;
i += 1;
}
*buf.get_unchecked_mut(i) = value as u8;
i + 1
}
}
/// Encode u32 value as varint.
/// Panics if buffer length is less than 5.
#[inline]
pub fn encode_varint32(mut value: u32, buf: &mut [u8]) -> usize {
assert!(buf.len() >= 5);
unsafe {
let mut i = 0;
while (value & !0x7F) > 0 {
*buf.get_unchecked_mut(i) = ((value & 0x7F) | 0x80) as u8;
value >>= 7;
i += 1;
}
*buf.get_unchecked_mut(i) = value as u8;
i + 1
}
}