public T Accumulate(INumericalOperation procName, List <INumber> operands)
{
var operandList = operands.ConvertAll(x => x as T);
var accProc = procArith[procName.GetType()];
var init = default(T);
if (procName is ScmAddition)
{
init = GetZero();
}
else if (procName is ScmMultiplication)
{
init = GetOne();
}
else if (procName is ScmMinProcedure ||
procName is ScmMaxProcedure)
{
if (operandList.Count < 2)
{
throw new Exception("Expects at least 2 argument");
}
init = null;
}
else
{
if (operandList.IsEmpty())
{
throw new Exception("Expects at least 1 argument");
}
if (operandList.IsSingle())
{
if (procName is ScmDivision)
{
operandList.Insert(0, GetOne());
}
else
{
operandList.Insert(0, GetZero());
}
}
init = operandList.Head();
operandList = operandList.Tail();
}
return(Utils.AccumulateList(accProc, operandList, init));
}
public virtual Utils.AccumulateProc <T> GetProc(INumericalOperation procName)
{
return(procArith[procName.GetType()]);
}
