pub fn encode_varint(value: u64, buf: &mut impl BufMut)Expand description
Encode a varint to a buffer.
Terminates in at most 10 iterations (⌈ 64/7 ⌉) for any u64 input
because value >>= 7 monotonically decreases and eventually satisfies
value < 0x80. An unbounded loop is used intentionally: a bounded
for _ in 0..10 adds loop-counter overhead that LLVM cannot eliminate
(it cannot prove the inner return always fires), and this function is
called for every tag and varint field on the encode hot path.