BigNum BigNum::operator /(const BigNum& operand) const {
std::vector<uint8_t> quotient, current;
bool started = false;
for (ssize_t i = data.size() - 1; i >= 0; i--) {
current.push_back(data[i]);
BigNum bcurrent(current);
uint8_t q = bcurrent.smallDivide(operand);
current = (bcurrent - ((operand) * BigNum(q))).toVector();
if (started or q != 0) {
started = true;
quotient.push_back(q);
}
}
return BigNum(quotient, negative xor operand.negative);
}
void eval_shield(pawn_entry_t *p, int *scoremg)
{ int current, min, penalty;
uint8 castle;
if(pos->pcount[BQ])
{ min = INF;
current = wcurrent(p, pos->ksq[W]);
castle = pos->castle & ~(BLACK_OO|BLACK_OOO);
if(castle & WHITE_OO) min = p->wg1;
if((castle & WHITE_OOO) && (min > p->wb1)) min = p->wb1;
if(castle && (min < current)) penalty = (min + current) / 2;
else penalty = current;
*(scoremg) -= penalty;
}
if(pos->pcount[WQ])
{ min = INF;
current = bcurrent(p, pos->ksq[B]);
castle = pos->castle & ~(WHITE_OO|WHITE_OOO);
if(castle & BLACK_OO) min = p->bg8;
if((castle & BLACK_OOO) && (min > p->bb8)) min = p->bb8;
if(castle && (min < current)) penalty = (min + current) / 2;
else penalty = current;
*(scoremg) += penalty;
}
}
