Function halo2_ecc::bigint::check_carry_to_zero::truncate

pub fn truncate<F: BigPrimeField>(
    range: &impl RangeInstructions<F>,
    ctx: &mut Context<F>,
    a: OverflowInteger<F>,
    limb_bits: usize,
    limb_base: F,
    limb_base_big: &BigInt
)