BigInt& BigInt::operator*(const BigInt& x) const
{
BigInt* result = new BigInt();
BigInt a = Abs();
BigInt b = x.Abs();
for(long long i = 0; i < MAXBIT - 1; i++)
{
if(x.GetElement(i) == 0)
continue;
for(long long j = 0; j < MAXBIT - 1; j++)
{
if(a.GetElement(j) == 0)
continue;
result->SetElenemt(i + j, result->GetElement(i + j) + a.GetElement(j) * x.GetElement(i));
}
result->Refine();
}
if(isNegtive() == x.isNegtive())
result->SetElenemt(MAXBIT - 1, 0);
else
result->SetElenemt(MAXBIT - 1, JINZHI - 1);
return *result;
}
BigInt::BigInt(const BigInt& x)
{
m_element = new unsigned long long[MAXBIT];
m_isRefined = false;
for(long long i = 0; i < MAXBIT; i++)
m_element[i] = x.GetElement(i);
Refine();
}
