|
private fromBigInteger ( BigInteger val ) : |
||
| val | BigInteger | |
| return | ||
public BigInt remainder(BigInt y)
{
if ((_bipart == null) && (y._bipart == null))
{
return(BigInt.valueOf(_lpart % y._lpart));
}
return(BigInt.fromBigInteger(this.toBigInteger().Mod(y.toBigInteger())));
}
public BigInt quotient(BigInt y)
{
if ((_bipart == null) && (y._bipart == null))
{
return(BigInt.valueOf(_lpart / y._lpart));
}
return(BigInt.fromBigInteger(this.toBigInteger().Divide(y.toBigInteger())));
}
public BigInt multiply(BigInt y)
{
if ((_bipart == null) && (y._bipart == null))
{
long ret = _lpart * y._lpart;
if (y._lpart == 0 || ret / y._lpart == _lpart)
{
return(BigInt.valueOf(ret));
}
}
return(BigInt.fromBigInteger(this.toBigInteger().Multiply(y.toBigInteger())));
}
public BigInt add(BigInt y)
{
if ((_bipart == null) && (y._bipart == null))
{
long ret = _lpart + y._lpart;
if ((ret ^ _lpart) >= 0 || (ret ^ y._lpart) >= 0)
{
return(BigInt.valueOf(ret));
}
}
return(BigInt.fromBigInteger(this.toBigInteger().Add(y.toBigInteger())));
}
public BigInt multiply(BigInt y)
{
if ((_bipart == null) && (y._bipart == null))
{
long ret = _lpart * y._lpart;
if (y._lpart == 0 ||
(_lpart != Int64.MinValue && unchecked (ret / y._lpart) == _lpart))
{
return(BigInt.valueOf(ret));
}
}
return(BigInt.fromBigInteger(this.toBigInteger().Multiply(y.toBigInteger())));
}
public static object MatchNumber(string s)
{
Match m = intRE.Match(s);
if (m.Success)
{
if (m.Groups[2].Success)
{
// matched 0 or 0N only
if (m.Groups[8].Success)
{
return(BigInt.ZERO);
}
return(0L);
}
bool isNeg = m.Groups[1].Value == "-";
string n = null;
int radix = 10;
if (m.Groups[3].Success)
{
n = m.Groups[3].Value;
radix = 10;
}
else if (m.Groups[4].Success)
{
n = m.Groups[4].Value;
radix = 16;
}
else if (m.Groups[5].Success)
{
n = m.Groups[5].Value;
radix = 8;
}
else if (m.Groups[7].Success)
{
n = m.Groups[7].Value;
radix = Int32.Parse(m.Groups[6].Value, System.Globalization.CultureInfo.InvariantCulture);
}
if (n == null)
{
return(null);
}
BigInteger bn = BigInteger.Parse(n, radix);
if (isNeg)
{
bn = bn.Negate();
}
if (m.Groups[8].Success) // N suffix
{
return(BigInt.fromBigInteger(bn));
}
if (bn.AsInt64(out long ln))
{
return(Numbers.num(ln));
}
return(BigInt.fromBigInteger(bn));
}
m = floatRE.Match(s);
if (m.Success)
{
if (m.Groups[4].Success)
{
string val = m.Groups[1].Value;
// MS implementation of java.util.BigDecimal has a bug when the string has a leading+
//if ( val[0] == '+' )
// val = val.Substring(1);
return(BigDecimal.Parse(val));
}
return((object)Double.Parse(s, System.Globalization.CultureInfo.InvariantCulture));
}
m = ratioRE.Match(s);
if (m.Success)
{
// There is a bug in the BigInteger c-tor that causes it barf on a leading +.
string numerString = m.Groups[1].Value;
string denomString = m.Groups[2].Value;
if (numerString[0] == '+')
{
numerString = numerString.Substring(1);
}
//return Numbers.BIDivide(new BigInteger(numerString), new BigInteger(denomString));
return(Numbers.divide(
Numbers.ReduceBigInt(BigInt.fromBigInteger(BigInteger.Parse(numerString))),
Numbers.ReduceBigInt(BigInt.fromBigInteger(BigInteger.Parse(denomString)))));
}
return(null);
}