public static Section CreateSection(int maxValue, BitVector64.Section previous)
{
if (maxValue < 1)
{
throw new ArgumentException("maxValue");
}
int bit = HighestSetBit(maxValue) + 1;
int mask = (1 << bit) - 1;
int offset = previous.Offset + NumberOfSetBits(previous.Mask);
if (offset > 64)
{
throw new ArgumentException("Sections cannot exceed 64 bits in total");
}
return(new Section((short)mask, (short)offset));
}
public long this[BitVector64.Section section]
{
get
{
return((data >> section.Offset) & section.Mask);
}
set
{
if (value < 0)
{
throw new ArgumentException("Section can't hold negative values");
}
if (value > section.Mask)
{
throw new ArgumentException("Value too large to fit in section");
}
this.data &= ~(section.Mask << section.Offset);
this.data |= (value << section.Offset);
}
}