static IntInterval DivideZeroPart1(IntInterval lhs, IntInterval rhs, ref bool b)
{
if (lhs.IsZero())
{
b = false;
return(lhs);
}
int lhsMin = lhs.Min;
int lhsMax = lhs.Max;
int rhsMin = rhs.Min;
int rhsMax = rhs.Max;
if (lhsMax < 0)
{
b = true;
return(new IntInterval(Integer.neg_inf, lhsMax / rhsMax));
}
else if (lhsMin < 0)
{
b = false;
return(Whole);
}
else
{
b = true;
return(new IntInterval(Integer.neg_inf, lhsMin / rhsMin));
}
}
static IntInterval DivideZero(IntInterval lhs)
{
if (lhs.IsZero())
{
return(lhs);
}
else
{
return(IntInterval.Whole);
}
}
static IntInterval DivideNegative(IntInterval lhs, int rhsMin)
{
if (lhs.IsZero())
{
return(lhs);
}
int lhsMin = lhs.Min;
int lhsMax = lhs.Max;
if (lhsMax < 0)
{
return(new IntInterval(lhsMax / rhsMin, Integer.pos_inf));
}
else if (lhsMin < 0)
{
return(new IntInterval(Integer.neg_inf, Integer.pos_inf));
}
else
{
return(new IntInterval(Integer.neg_inf, lhsMin / rhsMin));
}
}