Crates.io | packed-integers |
lib.rs | packed-integers |
version | 0.2.0 |
source | src |
created_at | 2020-11-05 10:58:11.132193 |
updated_at | 2023-09-04 07:34:26.163461 |
description | A growable array for integer types in the range `u1` to `u31`. |
homepage | |
repository | https://github.com/adrianwong/packed-integers |
max_upload_size | |
id | 308855 |
size | 38,282 |
packed_integers
provides a growable array for integer types in the range u1
to u31
.
Assume you have a sequence of unsigned integers in the range [0, 100000] that you would like to
hold in memory. That range of values can be represented using 17 bits per integer, since
217 - 1 = 131071. As Rust has no u17
type, you would typically store these values
in a u32
array, wasting 15 bits per integer.
packed-integers
helps alleviate this issue by packing these integers at the bit level,
essentially trading time for space.
Where possible, packed-integers
mimics the API for Rust's Vec
in order to provide a set of
methods you're probably already familiar with.