File indexing completed on 2024-04-21 05:50:06

 /*
     SPDX-FileCopyrightText: 2001-2013 Evan Teran <evan.teran@gmail.com>
     SPDX-FileCopyrightText: 1996-2000 Bernd Johannes Wuebben <wuebben@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #pragma once
 
 #include "kcalc_token.h"
 #include "knumber.h"
 #include "stats.h"
 
 #include <QQueue>
 
 class CalcEngine
 {
 public:
     CalcEngine();
 
     enum CALCULATION_RESULT { SUCCESS, EMPTY_INPUT, MATH_ERROR, SYNTAX_ERROR };
 
     int calculate(const QQueue<KCalcToken> tokenBuffer, int &errorIndex); // returs 0 on success
     KNumber getResult();
 
     KNumber lastOutput(bool &error) const;
 
 public:
     void StatClearAll();
     void StatCount(const KNumber &input);
     void StatDataNew(const KNumber &input);
     void StatDataDel();
     void StatMean(const KNumber &input);
     void StatMedian(const KNumber &input);
     void StatStdDeviation(const KNumber &input);
     void StatStdSample(const KNumber &input);
     void StatSum(const KNumber &input);
     void StatSumSquares(const KNumber &input);
 
 public:
     void Reset();
 
 private:
     KStats stats;
 
     QList<KCalcToken> token_stack_;
 
     const KCalcToken multiplication_Token_ = KCalcToken(KCalcToken::TokenCode::MULTIPLICATION);
 
     int reduce_Stack_(bool toParentheses = true);
     int insert_Binary_Function_Token_In_Stack_(const KCalcToken &token);
     int insert_KNumber_Token_In_Stack_(const KCalcToken &token);
 
     void printStacks_();
     bool error_;
 
     KNumber buffer_result_;
 };