Expand description
This crate provides the Bitmap type as a convenient and
efficient way of declaring and working with fixed size bitmaps in Rust.
Examples
let mut bitmap: Bitmap<10> = Bitmap::new();
assert_eq!(bitmap.set(5, true), false);
assert_eq!(bitmap.set(5, true), true);
assert_eq!(bitmap.get(5), true);
assert_eq!(bitmap.get(6), false);
assert_eq!(bitmap.len(), 1);
assert_eq!(bitmap.set(3, true), false);
assert_eq!(bitmap.len(), 2);
assert_eq!(bitmap.first_index(), Some(3));X86 Arch Support
On x86 and x86_64 architectures, Bitmaps of size 256, 512,
768 and 1024 gain the load_m256i() method, which reads the
bitmap into an __m256i or an array of __m256i using
_mm256_loadu_si256(). Bitmaps of size 128 as
well as the previous gain the load_m128i() method, which
does the same for __m128i.
In addition, Bitmap<U128> and Bitmap<U256> will have
From and Into implementations for __m128i and
__m256i respectively.
Note that alignment is unaffected - your bitmaps will be aligned
appropriately for u128, not __m128i or __m256i,
unless you arrange for it to be otherwise. This may affect the performance
of SIMD instructions.