CalcEngine: Convert NumObj* functions to use Rationals and move under CalcEngine::RationalMath namespace (#12)

* Converts NumObj* functions to use Rationals. Places new functions under CalcEngine::RationalMath namespace
* Moves functions that correspond to an operator to the Rational class with intent to convert to operators in the future
* Consolidates use of RatPack's NUMBER and RAT data types to Number/Rational classes and RationalMath namespace.

src/CalcManager/CEngine/Rational.cpp

@@ -2,6 +2,7 @@
 
 #include "pch.h"
 #include "Header Files/Rational.h"
+#include "Header Files/scimath.h"
 
 using namespace std;
 
@@ -29,6 +30,37 @@ namespace CalcEngine
         m_q{ q }
     {}
 
+    Rational::Rational(int32_t i)
+    {
+        PRAT pr = longtorat(static_cast<long>(i));
+
+        m_p = Number{ pr->pp };
+        m_q = Number{ pr->pq };
+
+        destroyrat(pr);
+    }
+
+    Rational::Rational(uint32_t ui)
+    {
+        PRAT pr = Ulongtorat(static_cast<unsigned long>(ui));
+
+        m_p = Number{ pr->pp };
+        m_q = Number{ pr->pq };
+
+        destroyrat(pr);
+    }
+
+    Rational::Rational(uint64_t ui, uint32_t radix, int32_t precision)
+    {
+        uint32_t hi = HIDWORD(ui);
+        uint32_t lo = LODWORD(ui);
+
+        Rational temp = Rational{ hi }.Lsh(32, radix, precision).Or(lo, radix, precision);
+
+        m_p = Number{ temp.P() };
+        m_q = Number{ temp.Q() };
+    }
+
     Rational::Rational(PRAT prat) noexcept :
         m_p{ Number{prat->pp} },
         m_q{ Number{prat->pq} }
@@ -54,8 +86,390 @@ namespace CalcEngine
         return m_q;
     }
 
+    Rational Rational::Negate() const
+    {
+        return Rational{ Number{ -1 * m_p.Sign(), m_p.Exp(), m_p.Mantissa() }, m_q};
+    }
+
+    Rational Rational::Add(Rational const& rhs, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            addrat(&lhsRat, rhsRat, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Sub(Rational const& rhs, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            subrat(&lhsRat, rhsRat, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Mul(Rational const& rhs, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            mulrat(&lhsRat, rhsRat, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Div(Rational const& rhs, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            divrat(&lhsRat, rhsRat, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Mod(Rational const& rhs) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            modrat(&lhsRat, rhsRat);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Lsh(Rational const& rhs, uint32_t radix, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            lshrat(&lhsRat, rhsRat, radix, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Rsh(Rational const& rhs, uint32_t radix, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            rshrat(&lhsRat, rhsRat, radix, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Not(bool isIntegerMode, Rational const& chopNum, uint32_t radix, int32_t precision) const
+    {
+        Rational result{};
+
+        if (radix == 10 && !isIntegerMode)
+        {
+            result = RationalMath::Integer(*this, radix, precision);
+            result = result.Add(1, precision);
+            result = result.Negate();
+        }
+        else
+        {
+            result = this->Xor(chopNum, radix, precision);
+        }
+
+        return result;
+    }
+
+    Rational Rational::And(Rational const& rhs, uint32_t radix, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+
+        try
+        {
+            andrat(&lhsRat, rhsRat, radix, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Or(Rational const& rhs, uint32_t radix, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+        try
+        {
+            orrat(&lhsRat, rhsRat, radix, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
+    Rational Rational::Xor(Rational const& rhs, uint32_t radix, int32_t precision) const
+    {
+        PRAT lhsRat = this->ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
+        try
+        {
+            xorrat(&lhsRat, rhsRat, radix, precision);
+            destroyrat(rhsRat);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
+            throw(error);
+        }
+
+        Rational result = Rational{ lhsRat };
+        destroyrat(lhsRat);
+
+        return result;
+    }
+
     bool Rational::IsZero() const
     {
         return this->P().IsZero();
     }
+
+    bool Rational::IsLess(Rational const& r, int32_t precision) const
+    {
+        PRAT thisRat = this->ToPRAT();
+        PRAT rRat = r.ToPRAT();
+
+        bool result = false;
+        try
+        {
+            result = rat_lt(thisRat, rRat, precision);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(thisRat);
+            destroyrat(rRat);
+            throw(error);
+        }
+
+        destroyrat(thisRat);
+        destroyrat(rRat);
+
+        return result;
+    }
+
+    bool Rational::IsLessEq(Rational const& r, int32_t precision) const
+    {
+        PRAT thisRat = this->ToPRAT();
+        PRAT rRat = r.ToPRAT();
+
+        bool result = false;
+        try
+        {
+            result = rat_le(thisRat, rRat, precision);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(thisRat);
+            destroyrat(rRat);
+            throw(error);
+        }
+
+        destroyrat(thisRat);
+        destroyrat(rRat);
+
+        return result;
+    }
+
+    bool Rational::IsGreaterEq(Rational const& r, int32_t precision) const
+    {
+        PRAT thisRat = this->ToPRAT();
+        PRAT rRat = r.ToPRAT();
+
+        bool result = false;
+        try
+        {
+            result = rat_ge(thisRat, rRat, precision);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(thisRat);
+            destroyrat(rRat);
+            throw(error);
+        }
+
+        destroyrat(thisRat);
+        destroyrat(rRat);
+
+        return result;
+    }
+
+    bool Rational::IsEq(Rational const& r, int32_t precision) const
+    {
+        PRAT thisRat = this->ToPRAT();
+        PRAT rRat = r.ToPRAT();
+
+        bool result = false;
+        try
+        {
+            result = rat_equ(thisRat, rRat, precision);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(thisRat);
+            destroyrat(rRat);
+            throw(error);
+        }
+
+        destroyrat(thisRat);
+        destroyrat(rRat);
+
+        return result;
+    }
+
+    wstring Rational::ToString(uint32_t radix, NUMOBJ_FMT fmt, int32_t precision) const
+    {
+        PRAT rat = this->ToPRAT();
+        wstring result{};
+
+        try
+        {
+            result = RatToString(rat, fmt, radix, precision);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(rat);
+            throw(error);
+        }
+
+        destroyrat(rat);
+
+        return result;
+    }
+
+    uint64_t Rational::ToUInt64_t(uint32_t radix, int32_t precision) const
+    {
+        PRAT rat = this->ToPRAT();
+        uint64_t result;
+        try
+        {
+            result = rattoUlonglong(rat, radix, precision);
+        }
+        catch (DWORD error)
+        {
+            destroyrat(rat);
+            throw(error);
+        }
+
+        destroyrat(rat);
+
+        return result;
+    }
 }

src/CalcManager/CEngine/calc.cpp

@@ -1,29 +1,6 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-/**************************************************************************\
- *** SCICALC Scientific Calculator for Windows 3.00.12
- *** (c)1989 Microsoft Corporation.  All Rights Reserved.
- ***
- *** scimain.c
- ***
- *** Definitions of all globals, WinMain procedure
- ***
- *** Last modification
- ***    Fri  22-Nov-1996
- ***
- *** 22-Nov-1996
- *** Converted Calc from floating point to infinite precision.
- *** The new math engine is in ..\ratpak
- ***
- ***
- *** 05-Jan-1990
- *** Calc did not have a floating point exception signal handler. This
- *** would cause CALC to be forced to exit on a FP exception as that's
- *** the default.
- *** The signal handler is defined in SCIFUNC.C, in WinMain we hook the
- *** the signal.
-\**************************************************************************/
 #include "pch.h"
 #include "Header Files/CalcEngine.h"
 
@@ -46,9 +23,7 @@ static constexpr wstring_view DEFAULT_GRP_STR = L"3;0";
 static constexpr wstring_view DEFAULT_NUMBER_STR = L"0";
 
 // Read strings for keys, errors, trig types, etc.
-// These will be copied from the resources to local memory.  A larger
+// These will be copied from the resources to local memory.
-// than needed block is allocated first and then reallocated once we
-// know how much is actually used.
 
 array<wstring, CSTRINGSENGMAX> CCalcEngine::s_engineStrings;
 
@@ -111,7 +86,7 @@ CCalcEngine::CCalcEngine(bool fPrecedence, bool fIntegerMode, CalculationManager
     m_numberString(DEFAULT_NUMBER_STR),
     m_nOp(),
     m_nPrecOp(),
-    m_memoryValue{make_unique<Rational>()},
+    m_memoryValue{ make_unique<Rational>() },
     m_holdVal{},
     m_currentVal{},
     m_lastVal{}
@@ -120,12 +95,7 @@ CCalcEngine::CCalcEngine(bool fPrecedence, bool fIntegerMode, CalculationManager
 
     m_dwWordBitWidth = DwWordBitWidthFromeNumWidth(m_numwidth);
 
-    PRAT maxTrig = longtorat(10L);
+    m_maxTrigonometricNum = RationalMath::Pow(10, 100, m_radix, m_precision);
-    PRAT hundred = longtorat(100L);
-    powrat(&maxTrig, hundred, m_radix, m_precision);
-    m_maxTrigonometricNum = Rational{ maxTrig };
-    destroyrat(maxTrig);
-    destroyrat(hundred);
 
     SetRadixTypeAndNumWidth(DEC_RADIX, m_numwidth);
     SettingsChanged();
@@ -147,14 +117,10 @@ void CCalcEngine::InitChopNumbers()
     assert(m_chopNumbers.size() == m_maxDecimalValueStrings.size());
     for (size_t i = 0; i < m_chopNumbers.size(); i++)
     {
-        PRAT hno = m_chopNumbers[i].ToPRAT();
+        auto maxVal = m_chopNumbers[i].Div(2, m_precision);
+        maxVal = RationalMath::Integer(maxVal, m_radix, m_precision);
 
-        divrat(&hno, rat_two, m_precision);
+        m_maxDecimalValueStrings[i] = maxVal.ToString(10, FMT_FLOAT, m_precision);
-        intrat(&hno, m_radix, m_precision);
-
-        m_maxDecimalValueStrings[i] = NumObjToString(hno, 10, FMT_FLOAT, m_precision);
-
-        NumObjDestroy(&hno);
     }
 }
 

src/CalcManager/CEngine/scicomm.cpp

@@ -32,9 +32,9 @@ using namespace CalcEngine;
 // 0 is returned. Higher the number, higher the precendence of the operator.
 INT NPrecedenceOfOp(int nopCode)
 {
-    static BYTE    rgbPrec[]={      0,0,  IDC_OR,0, IDC_XOR,0,  IDC_AND,1, 
+    static BYTE    rgbPrec[] = { 0,0,  IDC_OR,0, IDC_XOR,0,  IDC_AND,1,
         IDC_ADD,2, IDC_SUB,2,    IDC_RSHF,3, IDC_LSHF,3,
-        IDC_MOD,3, IDC_DIV,3, IDC_MUL,3,  IDC_PWR,4,   IDC_ROOT, 4};
+        IDC_MOD,3, IDC_DIV,3, IDC_MUL,3,  IDC_PWR,4,   IDC_ROOT, 4 };
     int iPrec;
 
     iPrec = 0;
@@ -46,7 +46,7 @@ INT NPrecedenceOfOp(int nopCode)
     {
         iPrec = 0;
     }
-    return rgbPrec[iPrec+1];
+    return rgbPrec[iPrec + 1];
 
 }
 
@@ -77,13 +77,13 @@ void CCalcEngine::ClearTemporaryValues()
     m_input.Clear();
     m_bRecord = true;
     CheckAndAddLastBinOpToHistory();
-    DisplayNum ();     
+    DisplayNum();
-    m_bError=false;
+    m_bError = false;
 }
 
 void CCalcEngine::ProcessCommand(WPARAM wParam)
 {
-    if(wParam == IDC_SET_RESULT)
+    if (wParam == IDC_SET_RESULT)
     {
         wParam = IDC_RECALL;
         m_bSetCalcState = true;
@@ -104,13 +104,13 @@ void CCalcEngine::ProcessCommandWorker(WPARAM wParam)
 
     if (!IsGuiSettingOpCode(wParam))
     {
-        m_nLastCom=m_nTempCom;
+        m_nLastCom = m_nTempCom;
-        m_nTempCom=(INT)wParam;
+        m_nTempCom = (INT)wParam;
     }
 
     if (m_bError)
     {
-        if(wParam == IDC_CLEAR)
+        if (wParam == IDC_CLEAR)
         {
             // handle "C" normally
         }
@@ -129,12 +129,12 @@ void CCalcEngine::ProcessCommandWorker(WPARAM wParam)
     // Toggle Record/Display mode if appropriate.    
     if (m_bRecord)
     {
-        if (IsOpInRange(wParam, IDC_AND, IDC_MMINUS)      ||
+        if (IsOpInRange(wParam, IDC_AND, IDC_MMINUS) ||
-            IsOpInRange(wParam, IDC_OPENP, IDC_CLOSEP)       ||
+            IsOpInRange(wParam, IDC_OPENP, IDC_CLOSEP) ||
-            IsOpInRange(wParam, IDM_HEX, IDM_BIN)          ||
+            IsOpInRange(wParam, IDM_HEX, IDM_BIN) ||
-            IsOpInRange(wParam, IDM_QWORD, IDM_BYTE)       ||
+            IsOpInRange(wParam, IDM_QWORD, IDM_BYTE) ||
-            IsOpInRange(wParam, IDM_DEG, IDM_GRAD)         ||
+            IsOpInRange(wParam, IDM_DEG, IDM_GRAD) ||
-            IsOpInRange(wParam, IDC_BINEDITSTART, IDC_BINEDITSTART+63)  ||
+            IsOpInRange(wParam, IDC_BINEDITSTART, IDC_BINEDITSTART + 63) ||
             (IDC_INV == wParam) ||
             (IDC_SIGN == wParam && 10 != m_radix))
         {
@@ -145,7 +145,7 @@ void CCalcEngine::ProcessCommandWorker(WPARAM wParam)
     }
     else
     {
-        if ( IsDigitOpCode(wParam)|| wParam == IDC_PNT)
+        if (IsDigitOpCode(wParam) || wParam == IDC_PNT)
         {
             m_bRecord = true;
             m_input.Clear();
@@ -156,7 +156,7 @@ void CCalcEngine::ProcessCommandWorker(WPARAM wParam)
     // Interpret digit keys.
     if (IsDigitOpCode(wParam))
     {
-        unsigned int iValue = static_cast<unsigned int>(wParam-IDC_0);
+        unsigned int iValue = static_cast<unsigned int>(wParam - IDC_0);
 
         // this is redundant, illegal keys are disabled
         if (iValue >= static_cast<unsigned int>(m_radix))
@@ -186,7 +186,7 @@ void CCalcEngine::ProcessCommandWorker(WPARAM wParam)
             INT nPrev;
             bool fPrecInvToHigher = false; // Is Precedence Invertion from lower to higher precedence happenning ??
 
-            m_nOpCode =(INT)wParam;
+            m_nOpCode = (INT)wParam;
 
             // Check to see if by changing this binop, a Precedence invertion is happenning.
             // Eg. 1 * 2  + and + is getting changed to ^. The previous precedence rules would have already computed
@@ -221,9 +221,9 @@ void CCalcEngine::ProcessCommandWorker(WPARAM wParam)
         /* Scientific mode.                                           */
         if (m_bChangeOp)
         {
-DoPrecedenceCheckAgain:
+        DoPrecedenceCheckAgain:
 
-            nx = NPrecedenceOfOp((int) wParam);
+            nx = NPrecedenceOfOp((int)wParam);
             ni = NPrecedenceOfOp(m_nOpCode);
 
             if ((nx > ni) && m_fPrecedence)
@@ -237,7 +237,7 @@ DoPrecedenceCheckAgain:
                 }
                 else
                 {
-                    m_nPrecNum = MAXPRECDEPTH-1;
+                    m_nPrecNum = MAXPRECDEPTH - 1;
                     HandleErrorCommand(wParam);
                 }
                 m_nPrecNum++;
@@ -253,13 +253,13 @@ DoPrecedenceCheckAgain:
 
                 if (!m_bError)
                 {
-                    DisplayNum ();
+                    DisplayNum();
                 }
 
-                if ((m_nPrecNum !=0) && (m_nPrecOp[m_nPrecNum-1]))
+                if ((m_nPrecNum != 0) && (m_nPrecOp[m_nPrecNum - 1]))
                 {
                     m_nPrecNum--;
-                    m_nOpCode=m_nPrecOp[m_nPrecNum] ;
+                    m_nOpCode = m_nPrecOp[m_nPrecNum];
 
                     m_lastVal = m_precedenceVals[m_nPrecNum];
 
@@ -274,7 +274,7 @@ DoPrecedenceCheckAgain:
                         m_HistoryCollector.EnclosePrecInvertionBrackets();
                     }
                     m_HistoryCollector.PopLastOpndStart();
-                    goto DoPrecedenceCheckAgain ;
+                    goto DoPrecedenceCheckAgain;
                 }
 
             }
@@ -283,7 +283,7 @@ DoPrecedenceCheckAgain:
         DisplayAnnounceBinaryOperator();
 
         m_lastVal = m_currentVal;
-        m_nOpCode=(INT)wParam;
+        m_nOpCode = (INT)wParam;
         m_HistoryCollector.AddBinOpToHistory(m_nOpCode);
         m_bNoPrevEqu = m_bChangeOp = true;
         return;
@@ -304,7 +304,7 @@ DoPrecedenceCheckAgain:
 
         // we do not add percent sign to history or to two line display.
         // instead, we add the result of applying %.
-        if(wParam != IDC_PERCENT)
+        if (wParam != IDC_PERCENT)
         {
             if (!m_HistoryCollector.FOpndAddedToHistory())
             {
@@ -329,9 +329,9 @@ DoPrecedenceCheckAgain:
             return;
 
         /* Display the result, reset flags, and reset indicators.     */
-        DisplayNum ();
+        DisplayNum();
 
-        if(wParam == IDC_PERCENT)
+        if (wParam == IDC_PERCENT)
         {
             CheckAndAddLastBinOpToHistory();
             m_HistoryCollector.AddOpndToHistory(m_numberString, m_currentVal, true /* Add to primary and secondary display */);
@@ -343,8 +343,8 @@ DoPrecedenceCheckAgain:
         if (m_bInv &&
             ((wParam == IDC_CHOP) ||
             (wParam == IDC_SIN) || (wParam == IDC_COS) || (wParam == IDC_TAN) ||
-            (wParam == IDC_LN) || (wParam == IDC_DMS) || (wParam == IDC_DEGREES) ||
+                (wParam == IDC_LN) || (wParam == IDC_DMS) || (wParam == IDC_DEGREES) ||
-            (wParam == IDC_SINH) || (wParam == IDC_COSH) || (wParam == IDC_TANH)))
+                (wParam == IDC_SINH) || (wParam == IDC_COSH) || (wParam == IDC_TANH)))
         {
             m_bInv = false;
         }
@@ -353,7 +353,7 @@ DoPrecedenceCheckAgain:
     }
 
     // Tiny binary edit windows clicked. Toggle that bit and update display
-    if (IsOpInRange(wParam, IDC_BINEDITSTART, IDC_BINEDITSTART+63))
+    if (IsOpInRange(wParam, IDC_BINEDITSTART, IDC_BINEDITSTART + 63))
     {
         // Same reasoning as for unary operators. We need to seed it previous number
         if (m_nLastCom >= IDC_AND && m_nLastCom <= IDC_PWR)
@@ -372,44 +372,44 @@ DoPrecedenceCheckAgain:
     }
 
     /* Now branch off to do other commands and functions.                 */
-    switch(wParam)
+    switch (wParam)
     {
     case IDC_CLEAR: /* Total clear.                                       */
+    {
+        if (!m_bChangeOp)
         {
-            if (!m_bChangeOp)
+            // A special goody we are doing to preserve the history, if all was done was serious of unary operations last
-            {
+            CheckAndAddLastBinOpToHistory(false);
-                // A special goody we are doing to preserve the history, if all was done was serious of unary operations last
-                 CheckAndAddLastBinOpToHistory(false);
-            }
-
-            m_lastVal = Rational{};
-
-            m_bChangeOp=false;
-            m_nPrecNum=m_nTempCom=m_nLastCom=m_nOpCode= m_openParenCount =0;
-            m_nPrevOpCode = 0;
-            m_bNoPrevEqu= true;
-
-
-            /* clear the parenthesis status box indicator, this will not be
-            cleared for CENTR */
-            if (nullptr != m_pCalcDisplay)
-            {
-                m_pCalcDisplay->SetParenDisplayText(L"");
-                m_pCalcDisplay->SetExpressionDisplay(make_shared<CalculatorVector<pair<wstring, int>>>(), make_shared<CalculatorVector<shared_ptr<IExpressionCommand>>>());
-            }
-
-            m_HistoryCollector.ClearHistoryLine(wstring());
-            ClearTemporaryValues();
         }
-        break;
+
+        m_lastVal = Rational{};
+
+        m_bChangeOp = false;
+        m_nPrecNum = m_nTempCom = m_nLastCom = m_nOpCode = m_openParenCount = 0;
+        m_nPrevOpCode = 0;
+        m_bNoPrevEqu = true;
+
+
+        /* clear the parenthesis status box indicator, this will not be
+        cleared for CENTR */
+        if (nullptr != m_pCalcDisplay)
+        {
+            m_pCalcDisplay->SetParenDisplayText(L"");
+            m_pCalcDisplay->SetExpressionDisplay(make_shared<CalculatorVector<pair<wstring, int>>>(), make_shared<CalculatorVector<shared_ptr<IExpressionCommand>>>());
+        }
+
+        m_HistoryCollector.ClearHistoryLine(wstring());
+        ClearTemporaryValues();
+    }
+    break;
 
     case IDC_CENTR: /* Clear only temporary values.                       */
-        {
+    {
-            // Clear the INV & leave (=xx indicator active
+        // Clear the INV & leave (=xx indicator active
-            ClearTemporaryValues();
+        ClearTemporaryValues();
-        }           
+    }
 
-        break; 
+    break;
 
     case IDC_BACK:
         // Divide number by the current radix and truncate.
@@ -487,15 +487,15 @@ DoPrecedenceCheckAgain:
                 /* Check for errors.  If this wasn't done, DisplayNum */
                 /* would immediately overwrite any error message.     */
                 if (!m_bError)
-                    DisplayNum ();
+                    DisplayNum();
 
                 /* No longer the first EQU.                       */
-                m_bNoPrevEqu= false;
+                m_bNoPrevEqu = false;
             }
             else if (!m_bError)
                 DisplayNum();
 
-            if (m_nPrecNum==0 || !m_fPrecedence)
+            if (m_nPrecNum == 0 || !m_fPrecedence)
                 break;
 
             m_nOpCode = m_nPrecOp[--m_nPrecNum];
@@ -510,7 +510,7 @@ DoPrecedenceCheckAgain:
             }
             m_HistoryCollector.PopLastOpndStart();
 
-            m_bNoPrevEqu= true;
+            m_bNoPrevEqu = true;
         } while (m_nPrecNum >= 0);
 
         if (!m_bError)
@@ -523,17 +523,17 @@ DoPrecedenceCheckAgain:
             }
         }
 
-        m_bChangeOp=false;
+        m_bChangeOp = false;
         m_nPrevOpCode = 0;
 
         break;
 
     case IDC_OPENP:
     case IDC_CLOSEP:
-        nx=0;
+        nx = 0;
-        if (wParam==IDC_OPENP)
+        if (wParam == IDC_OPENP)
         {
-            nx=1;
+            nx = 1;
         }
 
         // -IF- the Paren holding array is full and we try to add a paren
@@ -541,7 +541,7 @@ DoPrecedenceCheckAgain:
         //      paren
         // -OR- the the precidence holding array is full
         if ((m_openParenCount >= MAXPRECDEPTH && nx) || (!m_openParenCount && !nx)
-            || ( (m_nPrecNum >= MAXPRECDEPTH && m_nPrecOp[m_nPrecNum-1]!=0) ) )
+            || ((m_nPrecNum >= MAXPRECDEPTH && m_nPrecOp[m_nPrecNum - 1] != 0)))
         {
             HandleErrorCommand(wParam);
             break;
@@ -570,9 +570,9 @@ DoPrecedenceCheckAgain:
                 // treated as 1 + (3
                 m_currentVal = Rational{};
             }
-            m_nTempCom=0;
+            m_nTempCom = 0;
-            m_nOpCode=0;
+            m_nOpCode = 0;
-            m_bChangeOp= false; // a ( is like starting a fresh sub equation
+            m_bChangeOp = false; // a ( is like starting a fresh sub equation
         }
         else
         {
@@ -649,7 +649,7 @@ DoPrecedenceCheckAgain:
     case IDM_DWORD:
     case IDM_WORD:
     case IDM_BYTE:
-        if ( m_bRecord )
+        if (m_bRecord)
         {
             m_currentVal = m_input.ToRational(m_radix, m_precision);
             m_bRecord = false;
@@ -666,44 +666,41 @@ DoPrecedenceCheckAgain:
         break;
 
     case IDC_SIGN:
+    {
+        if (m_bRecord)
         {
-            if (m_bRecord)
+            if (m_input.TryToggleSign(m_fIntegerMode, m_maxDecimalValueStrings[m_numwidth]))
             {
-                if (m_input.TryToggleSign(m_fIntegerMode, m_maxDecimalValueStrings[m_numwidth]))
+                DisplayNum();
-                {
-                    DisplayNum();
-                }
-                else
-                {
-                    HandleErrorCommand(wParam);
-                }
-                break;
             }
-
+            else
-            // Doing +/- while in Record mode is not a unary operation
-            if (IsBinOpCode(m_nLastCom))
             {
-                m_currentVal = m_lastVal;
+                HandleErrorCommand(wParam);
             }
-
+            break;
-            if (!m_HistoryCollector.FOpndAddedToHistory())
-            {
-                m_HistoryCollector.AddOpndToHistory(m_numberString, m_currentVal);
-            }
-
-            PRAT curRat = m_currentVal.ToPRAT();
-            NumObjNegate(&curRat);
-            m_currentVal = Rational{ curRat };
-            destroyrat(curRat);
-
-            DisplayNum();
-            m_HistoryCollector.AddUnaryOpToHistory(IDC_SIGN, m_bInv, m_angletype);
         }
-        break;
+
+        // Doing +/- while in Record mode is not a unary operation
+        if (IsBinOpCode(m_nLastCom))
+        {
+            m_currentVal = m_lastVal;
+        }
+
+        if (!m_HistoryCollector.FOpndAddedToHistory())
+        {
+            m_HistoryCollector.AddOpndToHistory(m_numberString, m_currentVal);
+        }
+
+        m_currentVal = m_currentVal.Negate();
+
+        DisplayNum();
+        m_HistoryCollector.AddUnaryOpToHistory(IDC_SIGN, m_bInv, m_angletype);
+    }
+    break;
 
     case IDC_RECALL:
 
-        if(m_bSetCalcState)
+        if (m_bSetCalcState)
         {
             // Not a Memory recall. set the result
             m_bSetCalcState = false;
@@ -714,31 +711,25 @@ DoPrecedenceCheckAgain:
             m_currentVal = Rational{ *m_memoryValue };
         }
         CheckAndAddLastBinOpToHistory();
-        DisplayNum ();
+        DisplayNum();
         break;
 
     case IDC_MPLUS:
     {
         /* MPLUS adds m_currentVal to immediate memory and kills the "mem"   */
         /* indicator if the result is zero.                           */
-        PRAT memRat = m_memoryValue->ToPRAT();
+        Rational result = m_memoryValue->Add(m_currentVal, m_precision);
-        PRAT curRat = m_currentVal.ToPRAT();
+        m_memoryValue = make_unique<Rational>(TruncateNumForIntMath(result)); // Memory should follow the current int mode
-        addrat(&memRat, curRat, m_precision);
+
-        m_memoryValue = make_unique<Rational>(TruncateNumForIntMath(Rational{ memRat })); // Memory should follow the current int mode
-        destroyrat(curRat);
-        destroyrat(memRat);
         break;
     }
     case IDC_MMINUS:
     {
         /* MMINUS subtracts m_currentVal to immediate memory and kills the "mem"   */
         /* indicator if the result is zero.                           */
-        PRAT memRat = m_memoryValue->ToPRAT();
+        Rational result = m_memoryValue->Sub(m_currentVal, m_precision);
-        PRAT curRat = m_currentVal.ToPRAT();
+        m_memoryValue = make_unique<Rational>(TruncateNumForIntMath(result));
-        subrat(&memRat, curRat, m_precision);
+
-        m_memoryValue = make_unique<Rational>(TruncateNumForIntMath(Rational{ memRat }));
-        destroyrat(curRat);
-        destroyrat(memRat);
         break;
     }
     case IDC_STORE:
@@ -784,7 +775,7 @@ DoPrecedenceCheckAgain:
         break;
 
     case IDC_INV:
-        m_bInv=!m_bInv;
+        m_bInv = !m_bInv;
         break;
     }
 
@@ -1011,18 +1002,13 @@ int CCalcEngine::IdcSetAngleTypeDecMode(int idc)
 
 bool CCalcEngine::IsCurrentTooBigForTrig()
 {
-    bool result = false;
+    if (m_currentVal.IsGreaterEq(m_maxTrigonometricNum, m_precision))
-    PRAT maxTrigRat = m_maxTrigonometricNum.ToPRAT();
-    PRAT curRat = m_currentVal.ToPRAT();
-    if (NumObjIsGreaterEq(curRat, maxTrigRat, m_precision))
     {
         m_currentVal = Rational{};
-        result = true;
+        return true;
     }
-    destroyrat(curRat);
-    destroyrat(maxTrigRat);
 
-    return result;
+    return false;
 }
 
 int CCalcEngine::GetCurrentRadix()
@@ -1052,39 +1038,30 @@ wstring CCalcEngine::GetStringForDisplay(Rational const& rat, uint32_t radix)
     // Check for standard\scientific mode
     if (!m_fIntegerMode)
     {
-        PRAT prat = rat.ToPRAT();
+        result = rat.ToString(radix, m_nFE, m_precision);
-        result = NumObjToString(prat, radix, m_nFE, m_precision);
-        destroyrat(prat);
     }
     else
     {
         // Programmer mode
         // Find most significant bit to determine if number is negative
-        PRAT hnoNumCopy = TruncateNumForIntMath(rat).ToPRAT();
+        auto tempRat = TruncateNumForIntMath(rat);
 
         try
         {
-            ULONGLONG w64Bits = NumObjGetUlValue(hnoNumCopy, m_radix, m_precision);
+            uint64_t w64Bits = tempRat.ToUInt64_t(m_radix, m_precision);
             bool fMsb = ((w64Bits >> (m_dwWordBitWidth - 1)) & 1);
             if ((radix == 10) && fMsb)
             {
-                // If high bit is set, then get the decimal number in  -ve 2'scompl form.
+                // If high bit is set, then get the decimal number in negative 2's compl form.
-                PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
+                tempRat = tempRat.Not(true, m_chopNumbers[m_numwidth], m_radix, m_precision);
-                NumObjNot(&hnoNumCopy, true, chopRat, m_radix, m_precision);
+                tempRat = tempRat.Add(1, m_precision);
-                destroyrat(chopRat);
+                tempRat = tempRat.Negate();
-                addrat(&hnoNumCopy, rat_one, m_precision);
-                NumObjNegate(&hnoNumCopy);
             }
 
-            result = NumObjToString(hnoNumCopy, radix, m_nFE, m_precision);
+            result = tempRat.ToString(radix, m_nFE, m_precision);
-            NumObjDestroy(&hnoNumCopy);
         }
         catch (DWORD)
         {
-            if (hnoNumCopy != nullptr)
-            {
-                NumObjDestroy(&hnoNumCopy);
-            }
         }
     }
 

src/CalcManager/CEngine/scidisp.cpp

@@ -36,7 +36,7 @@ constexpr wstring_view c_decPostSepStr = L"]?(\\d*)(?:e[+-]?(\\d*))?$";
 // State of calc last time DisplayNum was called
 //
 typedef struct {
-    PRAT     hnoNum;
+    Rational value;
     int32_t precision;
     uint32_t radix;
     INT         nFE;
@@ -46,7 +46,7 @@ typedef struct {
     bool        bUseSep;
 } LASTDISP;
 
-LASTDISP gldPrevious = { nullptr, -1, 0, -1, (NUM_WIDTH)-1, false, false, false };
+LASTDISP gldPrevious = { 0, -1, 0, -1, (NUM_WIDTH)-1, false, false, false };
 
 // Truncates if too big, makes it a non negative - the number in rat. Doesn't do anything if not in INT mode
 CalcEngine::Rational CCalcEngine::TruncateNumForIntMath(CalcEngine::Rational const& rat)
@@ -56,27 +56,20 @@ CalcEngine::Rational CCalcEngine::TruncateNumForIntMath(CalcEngine::Rational con
         return rat;
     }
 
-    PRAT tempRat = rat.ToPRAT();
-
     // Truncate to an integer. Do not round here.
-    intrat(&tempRat, m_radix, m_precision);
+    auto result = RationalMath::Integer(rat, m_radix, m_precision);
 
-    PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
+    // Can be converting a dec negative number to Hex/Oct/Bin rep. Use 2's complement form
-    // Can be converting a dec -ve number to Hex/Oct/Bin rep. Use 2's completement form
     // Check the range.
-    if (NumObjIsLess(tempRat, rat_zero, m_precision))
+    if (result.IsLess(0, m_precision))
     {
         // if negative make positive by doing a twos complement
-        NumObjNegate(&tempRat);
+        result = result.Negate();
-        subrat(&tempRat, rat_one, m_precision);
+        result = result.Sub(1, m_precision);
-        NumObjNot(&tempRat, true, chopRat, m_radix, m_precision);
+        result = result.Not(true /* IntegerMode */, m_chopNumbers[m_numwidth], m_radix, m_precision);
     }
 
-    andrat(&tempRat, chopRat, m_radix, m_precision);
+    result = result.And(m_chopNumbers[m_numwidth], m_radix, m_precision);
-    destroyrat(chopRat);
-
-    Rational result{ tempRat };
-    destroyrat(tempRat);
 
     return result;
 }
@@ -90,27 +83,24 @@ void CCalcEngine::DisplayNum(void)
     //  something important has changed since the last time DisplayNum was
     //  called.
     //
-    PRAT curRat = m_currentVal.ToPRAT();
+    if (m_bRecord ||
-    bool hasValChanged = !gldPrevious.hnoNum || !NumObjIsEq(gldPrevious.hnoNum, curRat, m_precision);
+        !gldPrevious.value.IsEq(m_currentVal, m_precision) ||
-    destroyrat(curRat);
+        gldPrevious.precision != m_precision ||
-    if ( m_bRecord || gldPrevious.hnoNum == nullptr ||
+        gldPrevious.radix != m_radix ||
-            hasValChanged ||
+        gldPrevious.nFE != (int)m_nFE ||
-            gldPrevious.precision  != m_precision ||
+        gldPrevious.bUseSep != true ||
-            gldPrevious.radix != m_radix ||
+        gldPrevious.numwidth != m_numwidth ||
-            gldPrevious.nFE         != (int)m_nFE     ||
+        gldPrevious.fIntMath != m_fIntegerMode ||
-            gldPrevious.bUseSep     != true     ||
+        gldPrevious.bRecord != m_bRecord)
-            gldPrevious.numwidth    != m_numwidth ||
-            gldPrevious.fIntMath    != m_fIntegerMode  ||
-            gldPrevious.bRecord     != m_bRecord )
     {
         gldPrevious.precision = m_precision;
         gldPrevious.radix = m_radix;
-        gldPrevious.nFE        = (int)m_nFE;
+        gldPrevious.nFE = (int)m_nFE;
-        gldPrevious.numwidth   = m_numwidth;
+        gldPrevious.numwidth = m_numwidth;
 
-        gldPrevious.fIntMath   = m_fIntegerMode;
+        gldPrevious.fIntMath = m_fIntegerMode;
-        gldPrevious.bRecord    = m_bRecord;
+        gldPrevious.bRecord = m_bRecord;
-        gldPrevious.bUseSep    = true;
+        gldPrevious.bUseSep = true;
 
         if (m_bRecord)
         {
@@ -128,10 +118,9 @@ void CCalcEngine::DisplayNum(void)
         }
 
         // Displayed number can go thru transformation. So copy it after transformation
-        destroyrat(gldPrevious.hnoNum);
+        gldPrevious.value = m_currentVal;
-        gldPrevious.hnoNum = m_currentVal.ToPRAT();
 
-        if((m_radix == 10) && IsNumberInvalid(m_numberString, MAX_EXPONENT, m_precision, m_radix))
+        if ((m_radix == 10) && IsNumberInvalid(m_numberString, MAX_EXPONENT, m_precision, m_radix))
         {
             DisplayError(CALC_E_OVERFLOW);
         }
@@ -268,7 +257,7 @@ wstring CCalcEngine::GroupDigitsPerRadix(wstring_view numberString, uint32_t rad
     switch (radix)
     {
     case 10:
-        return GroupDigits(wstring{ m_groupSeparator }, m_decGrouping,  numberString, (L'-' == numberString[0]));
+        return GroupDigits(wstring{ m_groupSeparator }, m_decGrouping, numberString, (L'-' == numberString[0]));
     case 8:
         return GroupDigits(L" ", { 3, 0 }, numberString);
     case 2:

src/CalcManager/CEngine/scifunc.cpp

@@ -21,273 +21,193 @@
 
 using namespace std;
 using namespace CalcEngine;
+using namespace CalcEngine::RationalMath;
 
 /* Routines for more complex mathematical functions/error checking. */
 CalcEngine::Rational CCalcEngine::SciCalcFunctions(CalcEngine::Rational const& rat, DWORD op)
 {
-    PRAT tempRat = rat.ToPRAT();
+    Rational result{};
     try
     {
         switch (op)
         {
-            case IDC_CHOP:
+        case IDC_CHOP:
-                m_bInv ? fracrat(&tempRat , m_radix, m_precision) : intrat(&tempRat, m_radix, m_precision);
+            result = m_bInv ? Frac(rat, m_radix, m_precision) : Integer(rat, m_radix, m_precision);
-                break;
+            break;
 
             /* Return complement. */
-            case IDC_COM:
+        case IDC_COM:
-            {
+            result = rat.Not(m_fIntegerMode, m_chopNumbers[m_numwidth], m_radix, m_precision);
-                PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
+            break;
-                NumObjNot(&tempRat, m_fIntegerMode, chopRat, m_radix, m_precision);
-                destroyrat(chopRat);
-                break;
-            }
 
             // Rotate Left with hi bit wrapped over to lo bit
-            case IDC_ROL:
+        case IDC_ROL:
-                if (m_fIntegerMode)
+            if (m_fIntegerMode)
-                {
+            {
-                    intrat(&tempRat, m_radix, m_precision);
+                result = Integer(rat, m_radix, m_precision);
 
-                    PRAT curRat = m_currentVal.ToPRAT();
+                uint64_t w64Bits = result.ToUInt64_t(m_radix, m_precision);
-                    ULONGLONG w64Bits = NumObjGetUlValue(curRat, m_radix, m_precision);
+                uint64_t msb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
-                    ULONGLONG msb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
+                w64Bits <<= 1; // LShift by 1
+                w64Bits |= msb; // Set the prev Msb as the current Lsb
 
-                    w64Bits <<= 1; // LShift by 1
+                result = Rational{ w64Bits, m_radix, m_precision };
-                    w64Bits |= msb; // Set the prev Msb as the current Lsb
+            }
-                    NumObjSetUlonglongValue(&curRat, w64Bits, m_radix, m_precision);
+            break;
-                    m_currentVal = Rational{ curRat };
-                    destroyrat(curRat);
-                }
-                break;
 
             // Rotate right with lo bit wrapped over to hi bit
-            case IDC_ROR:
+        case IDC_ROR:
-                if (m_fIntegerMode)
+            if (m_fIntegerMode)
-                {
-                    intrat(&tempRat, m_radix, m_precision);
-                    PRAT curRat = m_currentVal.ToPRAT();
-                    ULONGLONG w64Bits = NumObjGetUlValue(curRat, m_radix, m_precision);
-
-                    ULONGLONG lsb = ((w64Bits & 0x01) == 1) ? 1 : 0;
-                    w64Bits >>= 1; //RShift by 1
-                    w64Bits |= (lsb << (m_dwWordBitWidth - 1));
-                    NumObjSetUlonglongValue(&curRat, w64Bits, m_radix, m_precision);
-                    m_currentVal = Rational{ curRat };
-                    destroyrat(curRat);
-                }
-                break;
-
-            case IDC_PERCENT:
             {
-                PRAT hno = nullptr;
+                result = Integer(rat, m_radix, m_precision);
-                PRAT hno100 = nullptr;
 
-                try
+                uint64_t w64Bits = result.ToUInt64_t(m_radix, m_precision);
-                {
+                uint64_t lsb = ((w64Bits & 0x01) == 1) ? 1 : 0;
-                    // If the operator is multiply/divide, we evaluate this as "X [op] (Y%)"
+                w64Bits >>= 1; //RShift by 1
-                    // Otherwise, we evaluate it as "X [op] (X * Y%)"
+                w64Bits |= (lsb << (m_dwWordBitWidth - 1));
-                    if (m_nOpCode == IDC_MUL || m_nOpCode == IDC_DIV)
-                    {
-                        NumObjSetIntValue(&hno100, 100);
 
-                        divrat(&tempRat, hno100, m_precision);
+                result = Rational{ w64Bits, m_radix, m_precision };
-                        destroyrat(hno100);
-                    }
-                    else
-                    {
-                        hno = m_lastVal.ToPRAT();
-                        NumObjSetIntValue(&hno100, 100);
-
-                        divrat(&hno, hno100, m_precision);
-                        destroyrat(hno100);
-
-                        mulrat(&tempRat, hno, m_precision);
-                        destroyrat(hno);
-                    }
-                }
-                catch ( DWORD nErrCode )
-                {
-                    destroyrat(hno);
-                    destroyrat(hno100);
-                    destroyrat(tempRat);
-                    throw nErrCode;
-                }
-                break;
             }
+            break;
 
-            case IDC_SIN: /* Sine; normal and arc */
+        case IDC_PERCENT:
-                if (!m_fIntegerMode)
+        {
-                {
+            // If the operator is multiply/divide, we evaluate this as "X [op] (Y%)"
-                    m_bInv ? asinanglerat(&tempRat, m_angletype, m_radix, m_precision) : NumObjSin(&tempRat, m_angletype, m_radix, m_precision);
+            // Otherwise, we evaluate it as "X [op] (X * Y%)"
-                }
+            if (m_nOpCode == IDC_MUL || m_nOpCode == IDC_DIV)
-                break;
-
-            case IDC_SINH: /* Sine- hyperbolic and archyperbolic */
-                if (!m_fIntegerMode)
-                {
-                    m_bInv ? asinhrat(&tempRat, m_radix, m_precision) : sinhrat(&tempRat, m_radix, m_precision);
-                }
-                break;
-
-            case IDC_COS: /* Cosine, follows convention of sine function. */
-                if (!m_fIntegerMode)
-                {
-                    m_bInv ? acosanglerat(&tempRat, m_angletype, m_radix, m_precision) : NumObjCos(&tempRat, m_angletype, m_radix, m_precision);
-                }
-                break;
-
-            case IDC_COSH: /* Cosine hyperbolic, follows convention of sine h function. */
-                if (!m_fIntegerMode)
-                {
-                    m_bInv ? acoshrat(&tempRat, m_radix, m_precision) : coshrat(&tempRat, m_radix, m_precision);
-                }
-                break;
-
-            case IDC_TAN: /* Same as sine and cosine. */
-                if (!m_fIntegerMode)
-                {
-                    m_bInv ? atananglerat(&tempRat, m_angletype, m_radix, m_precision) : NumObjTan(&tempRat, m_angletype, m_radix, m_precision);
-                }
-                break;
-
-            case IDC_TANH: /* Same as sine h and cosine h. */
-                if (!m_fIntegerMode)
-                {
-                    m_bInv ? atanhrat(&tempRat, m_precision) : tanhrat(&tempRat, m_radix, m_precision);
-                }
-                break;
-
-            case IDC_REC: /* Reciprocal. */
-                NumObjInvert(&tempRat, m_precision);
-                break;
-
-            case IDC_SQR: /* Square */
-                powrat(&tempRat, rat_two, m_radix, m_precision);
-                break;
-
-            case IDC_SQRT: /* Sqrt only in Std mode */
-                rootrat(&tempRat, rat_two, m_radix, m_precision);
-                break;
-
-            case IDC_CUBEROOT:
-            case IDC_CUB: /* Cubing and cube root functions. */
             {
-                PRAT hno = nullptr;
+                result = rat.Div(100, m_precision);
-
-                try
-                {
-                    NumObjAssign(&hno, rat_one);
-                    addrat(&hno, rat_two, m_precision);
-
-                    if (IDC_CUBEROOT == op)
-                    {
-                        rootrat(&tempRat, hno, m_radix, m_precision);
-                    }
-                    else
-                    {
-                        powrat(&tempRat, hno, m_radix, m_precision);
-                    }
-
-                    destroyrat(hno);
-                }
-                catch (DWORD nErrCode)
-                {
-                    destroyrat(hno);
-                    destroyrat(tempRat);
-                    throw nErrCode;
-                }
-                break;
             }
-
+            else
-            case IDC_LOG: /* Functions for common log. */
-                log10rat(&tempRat, m_precision);
-                break;
-            case IDC_POW10:
-                NumObjAntiLog10(&tempRat, m_radix, m_precision);
-                break;
-            case IDC_LN: /* Functions for natural log. */
-                if (m_bInv)
-                {
-                    exprat(&tempRat, m_radix, m_precision);  // e^x.
-                }
-                else
-                {
-                    lograt(&tempRat, m_precision);
-                }
-                break;
-
-            case IDC_FAC: /* Calculate factorial.  Inverse is ineffective. */
-                factrat(&tempRat, m_radix, m_precision);
-                break;
-
-            case IDC_DEGREES:
-                ProcessCommand(IDC_INV);
-                // This case falls through to IDC_DMS case because in the old Win32 Calc, 
-                // the degrees functionality was achieved as 'Inv' of 'dms' operation,
-                // so setting the IDC_INV command first and then performing 'dms' operation as global variables m_bInv, m_bRecord 
-                // are set properly through ProcessCommand(IDC_INV)
-            case IDC_DMS:
             {
-                if (!m_fIntegerMode)
+                result = m_lastVal.Div(100, m_precision);
-                {
+                result = rat.Mul(result, m_precision);
-                    PRAT hnoMin = nullptr;
-                    PRAT hnoSec = nullptr;
-                    PRAT hnoShft = nullptr;
-
-                    try
-                    {
-                        NumObjSetIntValue(&hnoShft, m_bInv ? 100 : 60);
-
-                        NumObjAssign(&hnoMin, tempRat);
-                        intrat(&tempRat, m_radix, m_precision);
-
-                        subrat(&hnoMin, tempRat, m_precision);
-                        mulrat(&hnoMin, hnoShft, m_precision);
-                        NumObjAssign(&hnoSec, hnoMin );
-                        intrat(&hnoMin, m_radix, m_precision);
-
-                        subrat(&hnoSec, hnoMin, m_precision);
-                        mulrat(&hnoSec, hnoShft, m_precision);
-
-                        //
-                        // tempRat == degrees, hnoMin == minutes, hnoSec == seconds
-                        //
-
-                        NumObjSetIntValue(&hnoShft, m_bInv ? 60 : 100);
-                        divrat(&hnoSec, hnoShft, m_precision);
-                        addrat(&hnoMin, hnoSec, m_precision);
-
-                        divrat(&hnoMin, hnoShft, m_precision);
-                        addrat(&tempRat, hnoMin, m_precision);
-
-                        destroyrat(hnoShft);
-                        destroyrat(hnoMin);
-                        destroyrat(hnoSec);
-                    }
-                    catch (DWORD nErrCode)
-                    {
-                        destroyrat(hnoShft);
-                        destroyrat(hnoMin);
-                        destroyrat(hnoSec);
-                        destroyrat(tempRat);
-                        throw nErrCode;
-                    }
-                }
-                break;
             }
+            break;
+        }
+
+        case IDC_SIN: /* Sine; normal and arc */
+            if (!m_fIntegerMode)
+            {
+                result = m_bInv ? ASin(rat, m_angletype, m_radix, m_precision) : Sin(rat, m_angletype, m_radix, m_precision);
+            }
+            break;
+
+        case IDC_SINH: /* Sine- hyperbolic and archyperbolic */
+            if (!m_fIntegerMode)
+            {
+                result = m_bInv ? ASinh(rat, m_radix, m_precision) : Sinh(rat, m_radix, m_precision);
+            }
+            break;
+
+        case IDC_COS: /* Cosine, follows convention of sine function. */
+            if (!m_fIntegerMode)
+            {
+                result = m_bInv ? ACos(rat, m_angletype, m_radix, m_precision) : Cos(rat, m_angletype, m_radix, m_precision);
+            }
+            break;
+
+        case IDC_COSH: /* Cosine hyperbolic, follows convention of sine h function. */
+            if (!m_fIntegerMode)
+            {
+                result = m_bInv ? ACosh(rat, m_radix, m_precision) : Cosh(rat, m_radix, m_precision);
+            }
+            break;
+
+        case IDC_TAN: /* Same as sine and cosine. */
+            if (!m_fIntegerMode)
+            {
+                result = m_bInv ? ATan(rat, m_angletype, m_radix, m_precision) : Tan(rat, m_angletype, m_radix, m_precision);
+            }
+            break;
+
+        case IDC_TANH: /* Same as sine h and cosine h. */
+            if (!m_fIntegerMode)
+            {
+                result = m_bInv ? ATanh(rat, m_precision) : Tanh(rat, m_radix, m_precision);
+            }
+            break;
+
+        case IDC_REC: /* Reciprocal. */
+            result = Invert(rat, m_precision);
+            break;
+
+        case IDC_SQR: /* Square */
+            result = Pow(rat, 2, m_radix, m_precision);
+            break;
+
+        case IDC_SQRT: /* Square Root */
+            result = Root(rat, 2, m_radix, m_precision);
+            break;
+
+        case IDC_CUBEROOT:
+        case IDC_CUB: /* Cubing and cube root functions. */
+            result = IDC_CUBEROOT == op ? Root(rat, 3, m_radix, m_precision) : Pow(rat, 3, m_radix, m_precision);
+            break;
+
+        case IDC_LOG: /* Functions for common log. */
+            result = Log10(rat, m_precision);
+            break;
+
+        case IDC_POW10:
+            result = Pow(10, rat, m_radix, m_precision);
+            break;
+
+        case IDC_LN: /* Functions for natural log. */
+            result = m_bInv ? Exp(rat, m_radix, m_precision) : Log(rat, m_precision);
+            break;
+
+        case IDC_FAC: /* Calculate factorial.  Inverse is ineffective. */
+            result = Fact(rat, m_radix, m_precision);
+            break;
+
+        case IDC_DEGREES:
+            ProcessCommand(IDC_INV);
+            // This case falls through to IDC_DMS case because in the old Win32 Calc, 
+            // the degrees functionality was achieved as 'Inv' of 'dms' operation,
+            // so setting the IDC_INV command first and then performing 'dms' operation as global variables m_bInv, m_bRecord 
+            // are set properly through ProcessCommand(IDC_INV)
+        case IDC_DMS:
+        {
+            if (!m_fIntegerMode)
+            {
+                Rational shftRat{ m_bInv ? 100 : 60 };
+
+                Rational degreeRat = Integer(rat, m_radix, m_precision);
+
+                Rational minuteRat = rat.Sub(degreeRat, m_precision);
+                minuteRat = minuteRat.Mul(shftRat, m_precision);
+
+                Rational secondRat = minuteRat;
+
+                minuteRat = Integer(minuteRat, m_radix, m_precision);
+
+                secondRat = secondRat.Sub(minuteRat, m_precision);
+                secondRat = secondRat.Mul(shftRat, m_precision);
+
+                //
+                // degreeRat == degrees, minuteRat == minutes, secondRat == seconds
+                //
+
+                shftRat = Rational{ m_bInv ? 60 : 100 };
+                secondRat = secondRat.Div(shftRat, m_precision);
+
+                minuteRat = minuteRat.Add(secondRat, m_precision);
+                minuteRat = minuteRat.Div(shftRat, m_precision);
+
+                result = degreeRat.Add(minuteRat, m_precision);
+            }
+            break;
+        }
         }   // end switch( op )
-
-        Rational result{ tempRat };
-        destroyrat(tempRat);
-        return result;
     }
-    catch(DWORD nErrCode)
+    catch (DWORD nErrCode)
     {
         DisplayError(nErrCode);
-        destroyrat(tempRat);
+        result = rat;
-        return rat;
     }
+
+    return result;
 }
 
 /* Routine to display error messages and set m_bError flag.  Errors are */

src/CalcManager/CEngine/scimath.cpp

@@ -3,204 +3,388 @@
 
 #include "pch.h"
 #include "Header Files/CalcEngine.h"
+#include "Ratpack/ratpak.h"
 
 using namespace std;
+using namespace CalcEngine;
 
-/**************************************************************************\
+Rational RationalMath::Frac(Rational const& rat, uint32_t radix, int32_t precision)
-*                                                                          *
-*                                                                          *
-*                                                                          *
-*    #          #                           #####                          *
-*    #         #              #             #    #                         *
-*    #         #  #        #  #             #    #                         *
-*    #        ###            ###            #    #                         *
-*    # # ###   #  # # ###  #  #   ###       #####  # ###  ###   ###        *
-*    # ##   #  #  # ##   # #  #  #   #      #      ##    #   # #           *
-*    # #    #  #  # #    # #  #  #####      #      #     ##### #           *
-*    # #    #  #  # #    # #  #  #          #      #     #     #    ##     *
-*    # #    #  #  # #    # #   #  ###       #      #      ###   ### ##     *
-*                                                                          *
-*                                                                          *
-*              Infinte Precision Production Version                        *
-*                                                                          *
-\**************************************************************************/
-//
-// RETAIL version of NUMOBJ math that uses Infinite Precision
-//
-// History
-//
-//  16-Nov-1996 Wrote it
-//  whenever-97 Rewrote it using improved ratpak model
-//
-
-/*****************************************************************\
-*
-* Generic Math Package support routines and variables
-*
-* History:
-*   01-Dec-1996 Wrote them
-*   whenever-97 Rewrote them
-*
-\*****************************************************************/
-
-/*****************************************************************\
-*
-* Unary functions
-*
-* History:
-*   01-Dec-1996 Wrote them
-*   whenever-97 Rewrote them
-*
-\*****************************************************************/
-
-void NumObjInvert(PRAT * phno, int32_t precision)
 {
-    PRAT hno = nullptr;
+    PRAT prat = rat.ToPRAT();
-
+    try
-    NumObjAssign( &hno, rat_one);
-    divrat( &hno, *phno, precision);
-    NumObjAssign( phno, hno );
-    NumObjDestroy( &hno );
-}
-
-void NumObjNegate(PRAT *phno)
-{
-    (*phno)->pp->sign = -(*phno)->pp->sign;
-}
-
-void NumObjAbs(PRAT *phno)
-{
-    (*phno)->pp->sign = 1;
-    (*phno)->pq->sign = 1;
-}
-
-void NumObjAntiLog10(PRAT *phno, uint32_t radix, int32_t precision)
-{
-    PRAT hno = nullptr;
-
-    NumObjSetIntValue( &hno, 10 );
-    powrat( &hno, *phno, radix, precision);
-    NumObjAssign( phno, hno );
-    NumObjDestroy( &hno );
-}
-
-void NumObjNot(PRAT *phno, bool fIntegerMode, PRAT chopNum, uint32_t radix, int32_t precision)
-{
-    if (radix == 10 && !fIntegerMode)
     {
-        intrat( phno, radix, precision);
+        fracrat(&prat, radix, precision);
-        addrat( phno, rat_one, precision);
-        NumObjNegate( phno );
     }
-    else
+    catch (DWORD error)
     {
-
+        destroyrat(prat);
-        xorrat( phno, chopNum, radix, precision);
+        throw(error);
     }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-void NumObjSin(PRAT *phno, ANGLE_TYPE angletype, uint32_t radix, int32_t precision )
+Rational RationalMath::Integer(Rational const& rat, uint32_t radix, int32_t precision)
 {
-    sinanglerat(phno, angletype, radix, precision);
+    PRAT prat = rat.ToPRAT();
+    try
+    {
+        intrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-void NumObjCos(PRAT *phno, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
+Rational RationalMath::Pow(Rational const& base, Rational const& pow, uint32_t radix, int32_t precision)
 {
-    cosanglerat(phno, angletype, radix, precision);
+    PRAT baseRat = base.ToPRAT();
+    PRAT powRat = pow.ToPRAT();
+
+    try
+    {
+        powrat(&baseRat, powRat, radix, precision);
+        destroyrat(powRat);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(baseRat);
+        destroyrat(powRat);
+        throw(error);
+    }
+
+    Rational result{ baseRat };
+    destroyrat(baseRat);
+
+    return result;
 }
 
-void NumObjTan(PRAT *phno, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
+Rational RationalMath::Root(Rational const& base, Rational const& root, uint32_t radix, int32_t precision)
 {
-    tananglerat(phno, angletype, radix, precision);
+    return Pow(base, Invert(root, precision), radix, precision);
 }
 
-/******************************************************************\
+Rational RationalMath::Fact(Rational const& rat, uint32_t radix, int32_t precision)
-*
-* Number format conversion routines
-*
-* History:
-*   06-Dec-1996 wrote them
-\******************************************************************/
-void NumObjSetIntValue(PRAT *phnol, LONG i )
 {
-    PRAT pr = nullptr;
+    PRAT prat = rat.ToPRAT();
 
-    pr = longtorat( i );
+    try
-    NumObjAssign( phnol, pr );
+    {
-    destroyrat(pr);
+        factrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-void NumObjSetIUlongValue(PRAT *phnol, ULONG ul )
+Rational RationalMath::Exp(Rational const& rat, uint32_t radix, int32_t precision)
 {
-    PRAT pr = nullptr;
+    PRAT prat = rat.ToPRAT();
 
-    pr = Ulongtorat( ul );
+    try
-    NumObjAssign( phnol, pr );
+    {
-    destroyrat(pr);
+        exprat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-// A Set with 64 bit number
+Rational RationalMath::Log(Rational const& rat, int32_t precision)
-void NumObjSetUlonglongValue(PRAT *phnol, ULONGLONG ul, uint32_t radix, int32_t precision)
 {
-    ULONG hi, lo;
+    PRAT prat = rat.ToPRAT();
-    PRAT hno = nullptr;
 
-    hi = HIDWORD(ul);
+    try
-    lo = LODWORD(ul);
+    {
-    NumObjSetIUlongValue(phnol, hi);
+        lograt(&prat, precision);
-    NumObjSetIntValue(&hno, 32);
+    }
-    lshrat(phnol, hno, radix, precision);
+    catch (DWORD error)
-    NumObjSetIUlongValue(&hno, lo);
+    {
-    orrat(phnol, hno, radix, precision);
+        destroyrat(prat);
-    NumObjDestroy(&hno);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-ULONGLONG NumObjGetUlValue( PRAT hnol, uint32_t radix, int32_t precision)
+Rational RationalMath::Log10(Rational const& rat, int32_t precision)
 {
-    return rattoUlonglong(hnol, radix, precision);
+    return Log(rat, precision).Div(10, precision);
 }
 
-wstring NumObjToString(PRAT hnoNum, uint32_t radix, NUMOBJ_FMT fmt, int32_t precision)
+Rational RationalMath::Invert(Rational const& rat, int32_t precision)
 {
-    return RatToString(hnoNum, fmt, radix, precision);
+    return Rational{ 1 }.Div(rat, precision);
 }
 
-bool NumObjIsZero(PRAT hno)
+Rational RationalMath::Abs(Rational const& rat)
 {
-    return zerrat(hno);
+    return Rational{ Number{ 1, rat.P().Exp(), rat.P().Mantissa() }, Number{ 1, rat.Q().Exp(), rat.Q().Mantissa() } };
 }
 
-bool NumObjIsLess(PRAT hno1, PRAT hno2, int32_t precision)
+Rational RationalMath::Sin(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
 {
-    return rat_lt(hno1, hno2, precision);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        sinanglerat(&prat, angletype, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-bool NumObjIsLessEq(PRAT hno1, PRAT hno2, int32_t precision)
+Rational RationalMath::Cos(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
 {
-    return rat_le(hno1, hno2, precision);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        cosanglerat(&prat, angletype, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-bool NumObjIsGreaterEq(PRAT hno1, PRAT hno2, int32_t precision)
+Rational RationalMath::Tan(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
 {
-    return rat_ge(hno1, hno2, precision);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        tananglerat(&prat, angletype, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-bool NumObjIsEq(PRAT hno1, PRAT hno2, int32_t precision)
+Rational RationalMath::ASin(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
 {
-    return rat_equ(hno1, hno2, precision);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        asinanglerat(&prat, angletype, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-void NumObjAssign(PRAT *phnol, PRAT hnor)
+Rational RationalMath::ACos(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
 {
-    DUPRAT(*phnol, hnor);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        acosanglerat(&prat, angletype, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-int32_t NumObjGetExp(PRAT hno)
+Rational RationalMath::ATan(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision)
 {
-    return LOGRATRADIX(hno);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        atananglerat(&prat, angletype, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }
 
-void NumObjDestroy(PRAT *phno)
+Rational RationalMath::Sinh(Rational const& rat, uint32_t radix, int32_t precision)
 {
-    destroyrat(*phno);
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        sinhrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
+}
+
+Rational RationalMath::Cosh(Rational const& rat, uint32_t radix, int32_t precision)
+{
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        coshrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
+}
+
+Rational RationalMath::Tanh(Rational const& rat, uint32_t radix, int32_t precision)
+{
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        tanhrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
+}
+
+Rational RationalMath::ASinh(Rational const& rat, uint32_t radix, int32_t precision)
+{
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        asinhrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
+}
+
+Rational RationalMath::ACosh(Rational const& rat, uint32_t radix, int32_t precision)
+{
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        acoshrat(&prat, radix, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
+}
+
+Rational RationalMath::ATanh(Rational const& rat, int32_t precision)
+{
+    PRAT prat = rat.ToPRAT();
+
+    try
+    {
+        atanhrat(&prat, precision);
+    }
+    catch (DWORD error)
+    {
+        destroyrat(prat);
+        throw(error);
+    }
+
+    Rational result{ prat };
+    destroyrat(prat);
+
+    return result;
 }

src/CalcManager/CEngine/scioper.cpp

@@ -5,181 +5,135 @@
 #include "Header Files/CalcEngine.h"
 
 using namespace CalcEngine;
+using namespace CalcEngine::RationalMath;
 
 // Routines to perform standard operations &|^~<<>>+-/*% and pwr.
 CalcEngine::Rational CCalcEngine::DoOperation(int operation, CalcEngine::Rational const& lhs, CalcEngine::Rational const& rhs)
 {
-    PRAT rhsRat = rhs.ToPRAT();
-    PRAT hno = nullptr;
-
     // Remove any variance in how 0 could be represented in rat e.g. -0, 0/n, etc.
-    PRAT resultRat = nullptr;
+    auto result = (!lhs.IsZero() ? lhs : Rational{});
-    if (lhs.IsZero())
-    {
-        NumObjAssign(&resultRat, rat_zero);
-    }
-    else
-    {
-        resultRat = lhs.ToPRAT();
-    }
 
     try
     {
         switch (operation)
         {
         case IDC_AND:
-            andrat(&resultRat, rhsRat, m_radix, m_precision);
+            result = result.And(rhs, m_radix, m_precision);
             break;
 
         case IDC_OR:
-            orrat(&resultRat, rhsRat, m_radix, m_precision);
+            result = result.Or(rhs, m_radix, m_precision);
             break;
 
         case IDC_XOR:
-            xorrat(&resultRat, rhsRat, m_radix, m_precision);
+            result = result.Xor(rhs, m_radix, m_precision);
             break;
 
         case IDC_RSHF:
         {
-            if (m_fIntegerMode)
+            if (m_fIntegerMode && result.IsGreaterEq(Rational{ m_dwWordBitWidth }, m_precision)) // Lsh/Rsh >= than current word size is always 0
             {
-                NumObjSetIntValue(&hno, m_dwWordBitWidth);
+                throw CALC_E_NORESULT;
-                if (NumObjIsGreaterEq(resultRat, hno, m_precision)) // Lsh/Rsh >= than current word size is always 0
-                {
-                    throw CALC_E_NORESULT;
-                }
             }
 
-            NumObjAssign(&hno, resultRat);
+            uint64_t w64Bits = rhs.ToUInt64_t(m_radix, m_precision);
-            NumObjAssign(&resultRat, rhsRat);
-
-            uint64_t w64Bits = NumObjGetUlValue(resultRat, m_radix, m_precision);
             bool fMsb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
 
-            rshrat(&resultRat, hno, m_radix, m_precision);
+            Rational holdVal = result;
+            result = rhs.Rsh(holdVal, m_radix, m_precision);
 
             if (fMsb)
             {
-                intrat(&resultRat, m_radix, m_precision);
+                result = Integer(result, m_radix, m_precision);
-                PRAT temp = m_chopNumbers[m_numwidth].ToPRAT();
+
-                PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
+                auto tempRat = m_chopNumbers[m_numwidth].Rsh(holdVal, m_radix, m_precision);
-                rshrat(&temp, hno, m_radix, m_precision);
+                tempRat = Integer(tempRat, m_radix, m_precision);
-                intrat(&temp, m_radix, m_precision);
+
-                xorrat(&temp, chopRat, m_radix, m_precision);
+                tempRat = tempRat.Xor(m_chopNumbers[m_numwidth], m_radix, m_precision);
-                orrat(&resultRat, temp, m_radix, m_precision);
+                result = result.Or(tempRat, m_radix, m_precision);
-                destroyrat(temp);
-                destroyrat(chopRat);
             }
             break;
         }
 
         case IDC_LSHF:
-            if (m_fIntegerMode)
+            if (m_fIntegerMode && result.IsGreaterEq(Rational{ m_dwWordBitWidth }, m_precision)) // Lsh/Rsh >= than current word size is always 0
             {
-                NumObjSetIntValue(&hno, m_dwWordBitWidth);
+                throw CALC_E_NORESULT;
-                if (NumObjIsGreaterEq(resultRat, hno, m_precision))
-                {
-                    throw CALC_E_NORESULT;
-                }
             }
 
-            NumObjAssign(&hno, resultRat);
+            result = rhs.Lsh(result, m_radix, m_precision);
-            NumObjAssign(&resultRat, rhsRat);
-
-            lshrat(&resultRat, hno, m_radix, m_precision);
             break;
 
         case IDC_ADD:
-            addrat(&resultRat, rhsRat, m_precision);
+            result = result.Add(rhs, m_precision);
             break;
 
         case IDC_SUB:
-            // in order to do ( rhsRat - resultRat ) we actually do -(resultRat - rhsRat ) because it's quicker
+            result = rhs.Sub(result, m_precision);
-            subrat(&resultRat, rhsRat, m_precision);
-            NumObjNegate(&resultRat);
             break;
 
         case IDC_MUL:
-            mulrat(&resultRat, rhsRat, m_precision);
+            result = result.Mul(rhs, m_precision);
             break;
 
         case IDC_DIV:
         case IDC_MOD:
+        {
+            int iNumeratorSign = 1, iDenominatorSign = 1, iFinalSign = 1;
+            auto temp = result;
+            result = rhs;
+
+            if (m_fIntegerMode)
             {
-                int iNumeratorSign = 1, iDenominatorSign = 1, iFinalSign = 1;
+                uint64_t w64Bits = rhs.ToUInt64_t(m_radix, m_precision);
-                // REVIEW:  These lengthly number assignments can be replaced with some quick pointer swaps.
+                bool fMsb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
-                // the swaps cannot change the value of pratX unless we also modify the code that calls
-                // the DoOperation function.
-                NumObjAssign(&hno, resultRat);
-                NumObjAssign(&resultRat, rhsRat);
 
-                if(m_fIntegerMode)
+                if (fMsb)
                 {
-                    uint64_t w64Bits = NumObjGetUlValue(resultRat, m_radix, m_precision);
+                    result = rhs.Not(true /* IntegerMode */, m_chopNumbers[m_numwidth], m_radix, m_precision);
-                    bool fMsb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
+                    result = result.Add(1, m_precision);
 
-                    if (fMsb)
+                    iNumeratorSign = -1;
-                    {
-                        PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
-                        NumObjNot(&resultRat, true, chopRat, m_radix, m_precision);
-                        destroyrat(chopRat);
-                        addrat(&resultRat, rat_one, m_precision);
-
-                        iNumeratorSign = -1;
-                    }
-
-                    w64Bits = NumObjGetUlValue(hno, m_radix, m_precision);
-                    fMsb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
-
-                    if (fMsb)
-                    {
-                        PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
-                        NumObjNot( &hno, true, chopRat, m_radix, m_precision);
-                        destroyrat(chopRat);
-                        addrat( &hno, rat_one, m_precision);
-
-                        iDenominatorSign = -1;
-                    }
                 }
 
-                if (operation == IDC_DIV)
+                w64Bits = temp.ToUInt64_t(m_radix, m_precision);
-                {
+                fMsb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1;
-                    iFinalSign = iNumeratorSign * iDenominatorSign;
-                    divrat(&resultRat, hno, m_precision);
-                }
-                else
-                {
-                    iFinalSign = iNumeratorSign; 
-                    modrat(&resultRat, hno );
-                }
 
-                if (m_fIntegerMode && iFinalSign == -1)
+                if (fMsb)
                 {
-                    intrat(&resultRat, m_radix, m_precision);
+                    temp = temp.Not(true /* IntegerMode */, m_chopNumbers[m_numwidth], m_radix, m_precision);
-                    NumObjNegate(&resultRat);
+                    temp = temp.Add(1, m_precision);
-                }
 
-                break;
+                    iDenominatorSign = -1;
+                }
             }
 
-        case IDC_PWR: // Calculates rhsRat to the resultRat(th) power.
+            if (operation == IDC_DIV)
             {
-                NumObjAssign(&hno, resultRat);
+                iFinalSign = iNumeratorSign * iDenominatorSign;
-                NumObjAssign(&resultRat, rhsRat);
+                result = result.Div(temp, m_precision);
-
-                powrat(&resultRat, hno , m_radix, m_precision);
-
-                break;
             }
-        case IDC_ROOT: // Calculates rhsRat to the resultRat(th) root.
+            else
             {
-                NumObjAssign(&hno, resultRat);
+                iFinalSign = iNumeratorSign;
-                NumObjAssign(&resultRat, rhsRat);
+                result = result.Mod(temp);
-
-                rootrat(&resultRat, hno, m_radix, m_precision);
-
-                break;
             }
+
+            if (m_fIntegerMode && iFinalSign == -1)
+            {
+                result = Integer(result, m_radix, m_precision).Negate();
+            }
+
+            break;
+        }
+
+        case IDC_PWR: // Calculates rhs to the result(th) power.
+            result = Pow(rhs, result, m_radix, m_precision);
+            break;
+
+        case IDC_ROOT: // Calculates rhs to the result(th) root.
+            result = Root(rhs, result, m_radix, m_precision);
+            break;
         }
     }
     catch (DWORD dwErrCode)
@@ -187,15 +141,8 @@ CalcEngine::Rational CCalcEngine::DoOperation(int operation, CalcEngine::Rationa
         DisplayError(dwErrCode);
 
         // On error, return the original value
-        destroyrat(resultRat);
+        result = lhs;
-        resultRat = lhs.ToPRAT();
     }
 
-    destroyrat(hno);
-    destroyrat(rhsRat);
-
-    Rational result{ resultRat };
-    destroyrat(resultRat);
-
     return result;
 }

src/CalcManager/CEngine/sciset.cpp

@@ -1,29 +1,13 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-/**************************************************************************/
-/*** SCICALC Scientific Calculator for Windows 3.00.12                  ***/
-/*** (c)1989 Microsoft Corporation.  All Rights Reserved.               ***/
-/***                                                                    ***/
-/*** sciset.c                                                           ***/
-/***                                                                    ***/
-/*** Functions contained:                                               ***/
-/***                                                                    ***/
-/*** Functions called:                                                  ***/
-/***    none                                                            ***/
-/***                                                                    ***/
-/*** History:                                                           ***/
-/***    12-Dec-1996 Added SetMaxIntDigits                               ***/
-/***    Whenever-97 Removed SetMaxIntDigits                             ***/
-/***                                                                    ***/
-/**************************************************************************/
 #include "pch.h"
 #include "Header Files/CalcEngine.h"
 
 using namespace CalcEngine;
+using namespace CalcEngine::RationalMath;
 
-// 
+// To be called when either the radix or num width changes. You can use -1 in either of these values to mean
-//  To be called when either the radix or num width changes. You can use -1 in either of these values to mean
 // dont change that.
 void CCalcEngine::SetRadixTypeAndNumWidth(RADIX_TYPE radixtype, NUM_WIDTH numwidth)
 {
@@ -34,22 +18,17 @@ void CCalcEngine::SetRadixTypeAndNumWidth(RADIX_TYPE radixtype, NUM_WIDTH numwid
     // back to 1111,1111,1000,0001 when in Word mode.
     if (m_fIntegerMode)
     {
-        PRAT curRat = m_currentVal.ToPRAT();
+        uint64_t w64Bits = m_currentVal.ToUInt64_t(m_radix, m_precision);
-        ULONGLONG w64Bits = NumObjGetUlValue(curRat, m_radix, m_precision);
         bool fMsb = (w64Bits >> (m_dwWordBitWidth - 1)) & 1; // make sure you use the old width
 
         if (fMsb)
         {
             // If high bit is set, then get the decimal number in -ve 2'scompl form.
-            PRAT chopRat = m_chopNumbers[m_numwidth].ToPRAT();
+            auto tempResult = m_currentVal.Not(true /* IntegerMode */, m_chopNumbers[m_numwidth], m_radix, m_precision);
-            NumObjNot(&curRat, true, chopRat, m_radix, m_precision);
+            tempResult = tempResult.Add(1, m_precision);
-            destroyrat(chopRat);
-            addrat(&curRat, rat_one, m_precision);
-            NumObjNegate(&curRat);
-            m_currentVal = Rational{ curRat };
-        }
 
-        destroyrat(curRat);
+            m_currentVal = tempResult.Negate();
+        }
     }
 
     if (radixtype >= HEX_RADIX && radixtype <= BIN_RADIX)
@@ -84,9 +63,9 @@ LONG CCalcEngine::DwWordBitWidthFromeNumWidth(NUM_WIDTH /*numwidth*/)
     return wmax;
 }
 
-uint32_t CCalcEngine::NRadixFromRadixType( RADIX_TYPE radixtype)
+uint32_t CCalcEngine::NRadixFromRadixType(RADIX_TYPE radixtype)
 {
-    static constexpr uint32_t rgnRadish[4]={16, 10, 8, 2};  /* Number bases in the same order as radixtype */
+    static constexpr uint32_t rgnRadish[4] = { 16, 10, 8, 2 };  /* Number bases in the same order as radixtype */
     uint32_t radix = 10;
 
     // convert special bases into symbolic values
@@ -106,25 +85,16 @@ bool CCalcEngine::TryToggleBit(CalcEngine::Rational& rat, DWORD wbitno)
         return false; // ignore error cant happen
     }
 
-    PRAT hnumPow = nullptr;
+    Rational result = Integer(rat, m_radix, m_precision);
-    NumObjAssign(&hnumPow, rat_two);
+    if (result.IsZero())
-    PRAT hnum = longtorat(wbitno);
-    powrat(&hnumPow, hnum, m_radix, m_precision);
-
-    PRAT resultRat = rat.ToPRAT();
-    intrat(&resultRat, m_radix, m_precision);
-    if (NumObjIsZero(resultRat))
     {
         // This is the same work around happenning in SciCalcFunctions. Ought to move to intrat function itself.
-        // Basic bug is there which doesn treat 0/ n as 0, or -0 as 0 etc.
+        // Basic bug is there which doesn't treat 0/ n as 0, or -0 as 0 etc.
-        NumObjAssign(&resultRat, rat_zero);
+        result = Rational{};
     }
 
-    xorrat(&resultRat, hnumPow, m_radix, m_precision);
+    auto pow = Pow(2, static_cast<int32_t>(wbitno), m_radix, m_precision);
-    rat = Rational{ resultRat };
+    rat = result.Xor(pow, m_radix, m_precision);
-    destroyrat(resultRat);
-    NumObjDestroy(&hnumPow);
-    NumObjDestroy(&hnum);
 
     return true;
 }

src/CalcManager/ExpressionCommand.cpp

@@ -293,9 +293,7 @@ wstring COpndCommand::GetString(uint32_t radix, int32_t precision, wchar_t decim
 
     if (m_fInitialized)
     {
-        PRAT valRat = m_value.ToPRAT();
+        result = m_value.ToString(radix, eNUMOBJ_FMT::FMT_FLOAT, precision);
-        result = NumObjToString(valRat, radix, eNUMOBJ_FMT::FMT_FLOAT, precision);
-        destroyrat(valRat);
     }
 
     return result;

src/CalcManager/Header Files/Rational.h

@@ -12,6 +12,9 @@ namespace CalcEngine
         Rational() noexcept;
         Rational(Number const& n) noexcept;
         Rational(Number const& p, Number const& q) noexcept;
+        Rational(int32_t i);
+        Rational(uint32_t ui);
+        Rational(uint64_t ui, uint32_t radix, int32_t precision);
 
         explicit Rational(PRAT prat) noexcept;
         PRAT ToPRAT() const;
@@ -19,7 +22,29 @@ namespace CalcEngine
         Number const& P() const;
         Number const& Q() const;
 
+        Rational Negate() const;
+        Rational Add(Rational const& rhs, int32_t precision) const;
+        Rational Sub(Rational const& rhs, int32_t precision) const;
+        Rational Mul(Rational const& rhs, int32_t precision) const;
+        Rational Div(Rational const& rhs, int32_t precision) const;
+        Rational Mod(Rational const& rhs) const;
+
+        Rational Lsh(Rational const& r, uint32_t radix, int32_t precision) const;
+        Rational Rsh(Rational const& r, uint32_t radix, int32_t precision) const;
+
+        Rational Not(bool isIntegerMode, Rational const& chopNum, uint32_t radix, int32_t precision) const;
+        Rational And(Rational const& r, uint32_t radix, int32_t precision) const;
+        Rational Or(Rational const& r, uint32_t radix, int32_t precision) const;
+        Rational Xor(Rational const& r, uint32_t radix, int32_t precision) const;
+
         bool IsZero() const;
+        bool IsLess(Rational const& r, int32_t precision) const;
+        bool IsLessEq(Rational const& r, int32_t precision) const;
+        bool IsGreaterEq(Rational const& r, int32_t precision) const;
+        bool IsEq(Rational const& r, int32_t precision) const;
+
+        std::wstring ToString(uint32_t radix, NUMOBJ_FMT format, int32_t precision) const;
+        uint64_t ToUInt64_t(uint32_t radix, int32_t precision) const;
 
     private:
         Number m_p;

src/CalcManager/Header Files/scimath.h

@@ -1,79 +1,35 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-/**************************************************************************\
+#include "Rational.h"
-*                                                                          *
-*                                                                          *
-*                                                                          *
-*    #          #                           #####                          *
-*    #         #              #             #    #                         *
-*    #         #  #        #  #             #    #                         *
-*    #        ###            ###            #    #                         *
-*    # # ###   #  # # ###  #  #   ###       #####  # ###  ###   ###        *
-*    # ##   #  #  # ##   # #  #  #   #      #      ##    #   # #           *
-*    # #    #  #  # #    # #  #  #####      #      #     ##### #           *
-*    # #    #  #  # #    # #  #  #          #      #     #     #    ##     *
-*    # #    #  #  # #    # #   #  ###       #      #      ###   ### ##     *
-*                                                                          *
-*                                                                          *
-*              Infinte Precision Production Version                        *
-*                                                                          *
-\**************************************************************************/
-//
-// RETAIL version of NUMOBJ math that uses Infinite Precision
-//
-#include "../Ratpack/ratpak.h"
 
-//
+namespace CalcEngine::RationalMath
-// Unary functions
+{
-//
+    Rational Frac(Rational const& rat, uint32_t radix, int32_t precision);
-void NumObjInvert(PRAT *phno, int32_t precision);
+    Rational Integer(Rational const& rat, uint32_t radix, int32_t precision);
-void NumObjNegate(PRAT *phno);
-void NumObjAbs(PRAT *phno);
 
-void NumObjSin(PRAT *phno, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
+    Rational Pow(Rational const& base, Rational const& pow, uint32_t radix, int32_t precision);
-void NumObjCos(PRAT *phno, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
+    Rational Root(Rational const& base, Rational const& root, uint32_t radix, int32_t precision);
-void NumObjTan(PRAT *phno, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
+    Rational Fact(Rational const& rat, uint32_t radix, int32_t precision);
-void NumObjAntiLog10(PRAT *phno, uint32_t radix, int32_t precision);
 
-void NumObjNot(PRAT *phno, bool fIntegerMode, PRAT chopNum, uint32_t radix, int32_t precision);
+    Rational Exp(Rational const& rat, uint32_t radix, int32_t precision);
+    Rational Log(Rational const& rat, int32_t precision);
+    Rational Log10(Rational const& rat, int32_t precision);
 
-//
+    Rational Invert(Rational const& rat, int32_t precision);
-// Comparison functions
+    Rational Abs(Rational const& rat);
-//
-bool NumObjIsZero(PRAT hno);
-bool NumObjIsLess(PRAT hno1, PRAT hno2, int32_t precision);
-bool NumObjIsLessEq(PRAT hno1, PRAT hno2, int32_t precision);
-bool NumObjIsGreaterEq(PRAT hno1, PRAT hno2, int32_t precision);
-bool NumObjIsEq(PRAT hno1, PRAT hno2, int32_t precision);
 
-//
+    Rational Sin(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
-// Assignment operator.  ('=' in C language)
+    Rational Cos(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
-//
+    Rational Tan(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
-void NumObjAssign(PRAT *phnol, PRAT hnor);
+    Rational ASin(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
+    Rational ACos(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
+    Rational ATan(Rational const& rat, ANGLE_TYPE angletype, uint32_t radix, int32_t precision);
 
-//
+    Rational Sinh(Rational const& rat, uint32_t radix, int32_t precision);
-// Data type conversion functions
+    Rational Cosh(Rational const& rat, uint32_t radix, int32_t precision);
-//
+    Rational Tanh(Rational const& rat, uint32_t radix, int32_t precision);
-void NumObjSetIntValue(PRAT *phnol, LONG i );
+    Rational ASinh(Rational const& rat, uint32_t radix, int32_t precision);
-void NumObjSetUlonglongValue(PRAT *phnol, ULONGLONG ul, uint32_t radix, int32_t precision);
+    Rational ACosh(Rational const& rat, uint32_t radix, int32_t precision);
-
+    Rational ATanh(Rational const& rat, int32_t precision);
-ULONGLONG NumObjGetUlValue( PRAT hnol, uint32_t radix, int32_t precision);
+}
-
-// Returns a string representation of hnoNum
-std::wstring NumObjToString(PRAT hnoNum, uint32_t radix, NUMOBJ_FMT fmt, int32_t precision);
-
-//
-//  NumObjGetExp
-//
-//  returns an int that equals the exponent of the NumObj
-//
-int32_t NumObjGetExp(PRAT hno);
-
-//
-//  NumObjDestroy( hno )
-//
-//      call this when you nolonger need the NumObj.  Failure to do so
-//  will result in memory leaks.
-//
-void NumObjDestroy(PRAT *phno);