libbitarray-dev - 2.0-3 main

Bit arrays are arrays of bits (values zero or one). This is a convenient
and efficient implementation for C/C++. Arrays can be enlarged or shrunk
as needed.
.
Bit arrays are initialised to zero when created or extended. All
operations have their bounds checked - an "Out of bounds" error is
printed if you try to access a bit with index >= length. Arrays of
length 0 are permitted. Indices must be >= 0.