public static FastIntegerFixed[] DigitLengthBoundsFixed <THelper>(
IRadixMathHelper <THelper> helper,
FastIntegerFixed fei)
{
int radix = helper.GetRadix();
FastIntegerFixed fastpath = FastPathDigitLength(fei, radix);
if (fastpath != null)
{
return(new FastIntegerFixed[] { fastpath, fastpath });
}
if (radix == 10)
{
EInteger[] fi = DecimalDigitLengthBoundsAsEI(fei.ToEInteger());
return(new FastIntegerFixed[] {
FastIntegerFixed.FromBig(fi[0]),
FastIntegerFixed.FromBig(fi[1]),
});
}
else
{
FastInteger fi = helper.GetDigitLength(fei.ToEInteger());
FastIntegerFixed fif = FastIntegerFixed.FromFastInteger(fi);
return(new FastIntegerFixed[] { fif, fif });
}
}
public static FastIntegerFixed DigitLengthFixed <THelper>(
IRadixMathHelper <THelper> helper,
FastIntegerFixed fei)
{
FastIntegerFixed fastpath = FastPathDigitLength(fei, helper.GetRadix());
if (fastpath != null)
{
return(fastpath);
}
FastInteger fi = helper.GetDigitLength(fei.ToEInteger());
FastIntegerFixed fif = FastIntegerFixed.FromFastInteger(fi);
return(fif);
}
public static FastInteger[] DigitLengthBounds <THelper>(
IRadixMathHelper <THelper> helper,
EInteger ei)
{
int radix = helper.GetRadix();
if (radix == 2)
{
FastInteger fi =
FastInteger.FromBig(ei.GetUnsignedBitLengthAsEInteger());
return(new FastInteger[] { fi, fi });
}
else if (radix == 10)
{
return(DecimalDigitLengthBounds(ei));
}
else
{
FastInteger fi = helper.GetDigitLength(ei);
return(new FastInteger[] { fi, fi });
}
}