Crate varu64 [−] [src]
A variable length encoding of u64 integers, based on multiformats varints, but using the most significant bit of a 9-byte encoded integer to encode the most significant bit of a u64 rather than using it a a continuation bit.
Structs
Decode |
A future for decoding a u64 from an |
DecodeDeserialize |
A decoder that implements the |
Encode |
A future for encoding a u64 into an |
Constants
MAX_1 |
The largest u64 that fits into one byte of encoding: 2u64.pow(7 * 1) - 1 |
MAX_2 |
The largest u64 that fits into two bytes of encoding: 2u64.pow(7 * 2) - 1 |
MAX_3 |
The largest u64 that fits into three bytes of encoding: 2u64.pow(7 * 3) - 1 |
MAX_4 |
The largest u64 that fits into four bytes of encoding: 2u64.pow(7 * 4) - 1 |
MAX_5 |
The largest u64 that fits into five bytes of encoding: 2u64.pow(7 * 5) - 1 |
MAX_6 |
The largest u64 that fits into six bytes of encoding: 2u64.pow(7 * 6) - 1 |
MAX_7 |
The largest u64 that fits into seven bytes of encoding: 2u64.pow(7 * 7) - 1 |
MAX_8 |
The largest u64 that fits into eight bytes of encoding: 2u64.pow(7 * 8) - 1 |
MAX_9 |
The largest u64 that fits into nine bytes of encoding. |
MAX_LENGTH |
The largest number of bytes an encoding can consume. |
Functions
decode_bytes |
Try to decode from a slice of bytes. |
decode_reader |
Try to decode from a |
encode_bytes |
Try to encode into a slice of bytes, returning the length of the encoding in bytes. |
encode_writer |
Try to encode into a |
len |
Return the number of bytes needed to encode the given u64. |