public ArithmeticSubstitute(ArithmeticOperand operand, char name)
{
//operand cannot be another substitute
if (operand.IsSubstitution) {
throw new Exception("Invalid operand");
}
p_Operand = operand;
p_Name = name;
}
private ArithmeticOperand processSubstitute(ArithmeticOperand operand, LinkedList<ArithmeticSubstitute> sub)
{
char name = (char)operand.Value;
ArithmeticSubstitute ret;
bool found = substituteExist(name, sub, out ret);
if (found) { return ret.Operand; }
throw new Exception("Substitute '" + name + "' was not found");
}
private void processOperand(ref ArithmeticOperand operand, bool canResize, ref ArithmeticNumeric buffer, LinkedList<ArithmeticSubstitute> subs)
{
if (operand.IsSubstitution) {
ArithmeticOperand newOpAnd = processSubstitute(operand, subs);
//do we have to resize the buffer? to store the substitution?
if (canResize) {
ArithmeticNumeric val = (ArithmeticNumeric)newOpAnd.Value;
//decimal?
if (!buffer.IsDecimal && newOpAnd.IsDecimal) {
ArithmeticNumeric bufferCopy = buffer;
buffer = ArithmeticNumeric.CreateOfSize(val.Size, true);
buffer += bufferCopy;
}
//need more memory?
else if (buffer.Size < val.Size) {
ArithmeticNumeric bufferCopy = buffer;
buffer = ArithmeticNumeric.CreateOfSize(val.Size, newOpAnd.IsDecimal);
buffer += bufferCopy;
}
}
if (operand.IsNegative) { newOpAnd.IsNegative = true; }
operand = newOpAnd;
return;
}
if (operand.IsQueue) {
ArithmeticNumeric ret = ((ArithmeticQueue)operand.Value).Calculate(subs);
operand = new ArithmeticOperand(ret, operand.IsNegative);
}
if (operand.IsFunction) {
ArithmeticNumeric ret = ((ArithmeticFunction)operand.Value).Call(subs);
operand = new ArithmeticOperand(ret, operand.IsNegative);
}
}
private void performCalc(ref ArithmeticNumeric current, ArithmeticOperator op, ArithmeticOperand opAnd)
{
//get the operand as decimal
ArithmeticNumeric opAndDecimal = getOperandValue(opAnd);
//perform the calculation
switch (op) {
case ArithmeticOperator.Addition: current += opAndDecimal; break;
case ArithmeticOperator.Subtract: current -= opAndDecimal; break;
case ArithmeticOperator.Multiply: current *= opAndDecimal; break;
case ArithmeticOperator.Divide: current /= opAndDecimal; break;
case ArithmeticOperator.Modulus: current %= opAndDecimal; break;
case ArithmeticOperator.Power:
current = Math.Pow(
Convert.ToDouble(current.RAWObject),
Convert.ToDouble(opAndDecimal.RAWObject));
break;
}
}
private ArithmeticNumeric getOperandValue(ArithmeticOperand operand)
{
ArithmeticNumeric val = (ArithmeticNumeric)operand.Value;
if (operand.IsNegative) { val = -val; }
return val;
}
public ArithmeticQueue AddOperation(ArithmeticOperator op, ArithmeticOperand opAnd1, ArithmeticOperand opAnd2)
{
//there must be no operators/operands present since it would otherwise
//create an invalid calculation queue
if (p_Operands.Count != 0) {
throw new Exception("This call must be used only when there are no operands to chain off. Consider AddOperation(op,operand)");
}
//operand larger than the result size? if so, set the result size to that of the operand
sbyte opAnd1Size = 0;
sbyte opAnd2Size = 0;
if (opAnd1.IsNumeric) {
if (opAnd1.IsDecimal) { p_HasDecimal = true; }
opAnd1Size = ArithmeticNumeric.SizeOfNumericObj(opAnd1.Value);
}
if (opAnd2.IsNumeric) {
if (opAnd2.IsDecimal) { p_HasDecimal = true; }
opAnd2Size = ArithmeticNumeric.SizeOfNumericObj(opAnd2.Value);
}
if (opAnd1Size > p_ResultSize) { p_ResultSize = opAnd1Size; }
if (opAnd2Size > p_ResultSize) { p_ResultSize = opAnd2Size; }
//add it
p_Operators.AddLast(op);
p_Operands.AddLast(opAnd1);
p_Operands.AddLast(opAnd2);
p_BIDMASSorted = false;
//division?
if (op == ArithmeticOperator.Divide) { HasDecimal = true; }
return this;
}
public ArithmeticQueue AddOperation(ArithmeticOperator op, ArithmeticOperand operand)
{
//valid call? (there must be operands already) otherwise this call would
//make the arithmatic queue invalid.
if (p_Operands.Count == 0) {
throw new Exception("Cannot add on to chain when there is no operands to chain off. Consider using AddOperation(op,opAnd1,opAnd2).");
}
//operand larger than the result size? if so, set the result size to that of the operand
sbyte operandSize = 0;
if (operand.IsNumeric) {
if (operand.IsDecimal) { p_HasDecimal = true; }
operandSize = ArithmeticNumeric.SizeOfNumericObj(operand.Value);
}
if (operandSize > p_ResultSize) { p_ResultSize = operandSize; }
//add it
p_Operators.AddLast(op);
p_Operands.AddLast(operand);
p_BIDMASSorted = false;
//division
if (op == ArithmeticOperator.Divide) { HasDecimal = true; }
return this;
}