/**
* Serialize sign and value using radix point (no exponent).
*/
std::string NValue::createStringFromDecimal() const {
assert(!isNull());
std::ostringstream buffer;
TTInt scaledValue = getDecimal();
if (scaledValue.IsSign()) {
buffer << '-';
}
TTInt whole(scaledValue);
TTInt fractional(scaledValue);
whole /= NValue::kMaxScaleFactor;
fractional %= NValue::kMaxScaleFactor;
if (whole.IsSign()) {
whole.ChangeSign();
}
buffer << whole.ToString(10);
buffer << '.';
if (fractional.IsSign()) {
fractional.ChangeSign();
}
std::string fractionalString = fractional.ToString(10);
for (int ii = static_cast<int>(fractionalString.size()); ii < NValue::kMaxDecScale; ii++) {
buffer << '0';
}
buffer << fractionalString;
return buffer.str();
}
string Decimal::toString(unsigned number_of_fractinal_digits) const {
if (isNull()) return "NULL";
string ress = "";
TTInt rest = this->word[0];
rest.ToString(ress);
int sign = 0;
if (rest.IsSign()) sign = 1;
while ((Decimal::kMaxDecScale + sign - (int) ress.length()) >= 0)
ress.insert(sign, "0");
if(number_of_fractinal_digits > 0)
ress.insert(ress.length() - Decimal::kMaxDecScale, ".");
ress.erase(ress.size() - Decimal::kMaxDecScale + number_of_fractinal_digits,
Decimal::kMaxDecScale - number_of_fractinal_digits);
return ress;
}