Function get_striped_random_integer_from_range

Source
pub fn get_striped_random_integer_from_range(
    xs: &mut StripedBitSource,
    range_generator: &mut VariableRangeGenerator,
    a: Integer,
    b: Integer,
) -> Integer
Expand description

Generates a random striped Integer in the range $[a, b)$.

Because the Integer is constrained to be within a certain range, the actual mean run length will usually not be $m$. Nonetheless, setting a higher $m$ will result in a higher mean run length.

See StripedBitSource for information about generating striped random numbers.

§Expected complexity

$T(n) = O(n)$

$M(n) = O(n)$

where $T$ is time, $M$ is additional memory, and $n$ is max(a.significant_bits(), b.significant_bits()).

§Panics

Panics if $a \geq b$.

§Examples

use malachite_base::num::random::striped::StripedBitSource;
use malachite_base::num::random::VariableRangeGenerator;
use malachite_base::random::EXAMPLE_SEED;
use malachite_nz::integer::random::get_striped_random_integer_from_range;
use malachite_nz::integer::Integer;

assert_eq!(
    get_striped_random_integer_from_range(
        &mut StripedBitSource::new(EXAMPLE_SEED.fork("bs"), 10, 1,),
        &mut VariableRangeGenerator::new(EXAMPLE_SEED.fork("rg")),
        Integer::from(-4),
        Integer::from(7),
    ),
    -4
);