[−][src]Crate bva
Crate for manipulating bit vectors and doing arithmetic on arbitrarily sized bit vectors.
This crate emphasizes optimizing storage by providing alternative storage options.
The module fixed contains implementations using unsigned integers as storage and thus
has a fixed capacity. The module dynamic contains an implementation using dynamically
allocated array of integers as storage and therefore has a dynamic capacity. The module
auto contains an implementation capable of switching at runtime between a fixed or
dynamic capacity implementation to try to minimize dynamic memory allocations.
All of those implementations implement the BitVector trait and can be freely mixed together
and converted into each other.
The different bit vector types represent a vector of bits where the bit at index 0 is the least
significant bit and the bit at index .len() - 1 is the most significant bit. There is no
notion of endianness for the bit vector themselves, endianness is only involved when reading or
writing a bit vector to or from memory or storage.
Arithmetic operation can be applied to bit vectors of different length. The result will always have the length of the longest operand and the smallest operand will be zero extended for the operation. This should match the most intuitive behavior in most cases except when manipulating bit vector supposed to have a sign bit.
Modules
| auto | This module contains an automatically managed bit vector type. Depending on the required capacity, it might use a fixed capacity implementation to avoid unnecessary dynamic memory allocations, or it might use a dynamic capacity implementation if the capacity of fixed implementations is exceeded. |
| bit | |
| dynamic | This module contains a dynamic capacity bit vector implementation using a dynamically allocated integer array as storage. |
| fixed | This module contains fixed capacity bit vector implementations using a single integer as
storage. Each implementations is named |
Enums
| Endianness | A enumeration representing the endianness of an I/O or memory operation. |
Traits
| BitVector | A trait representing common bit vector operations. |