pub const fn integer_decreasing_range_to_negative_infinity(
    a: Integer
) -> IntegerDecreasingRangeToNegativeInfinity 
Expand description

Generates all Integers less than or equal to some number $a$, in descending order.

The output is $(-k)_{k=-a}^{\infty}$.

The output length is infinite.

§Worst-case complexity per iteration

$T(i) = O(i)$

$M(i) = O(i)$

where $T$ is time, $M$ is additional memory, and $i$ is the iteration number.

Although the time and space complexities are worst-case linear, the worst case is very rare. If we exclude the cases where the the previously-generated value is negative and the least-significant limb of its absolute value is Limb::MAX, the worst case space and time complexities are constant.

§Examples

use malachite_base::iterators::prefix_to_string;
use malachite_nz::integer::exhaustive::integer_decreasing_range_to_negative_infinity;
use malachite_nz::integer::Integer;

assert_eq!(
    prefix_to_string(integer_decreasing_range_to_negative_infinity(Integer::from(4)), 10),
    "[4, 3, 2, 1, 0, -1, -2, -3, -4, -5, ...]"
)