Method is_negative

bitvm/src/bigint/std.rs:329–335

(depth: u32)

    }

    pub fn is_negative(depth: u32) -> Script {
        script! {
            { (1 + depth) * Self::N_LIMBS - 1 } OP_PICK
            { Self::HEAD_OFFSET >> 1 }
            OP_GREATERTHANOREQUAL
        }
    }

    pub fn is_positive(depth: u32) -> Script {
        script! {