73c035ecc9
Functions sin(), cos() and tan() take radians. And their counterparts asin(), acos() and atan() return radians. Removed hyperbolic functions because they do not work with radians. --HG-- branch : release
113 lines
4.2 KiB
C++
113 lines
4.2 KiB
C++
/***************************************************************************************************
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**
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** Copyright (C) 2013 Ingo Berg
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**
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** Permission is hereby granted, free of charge, to any person obtaining a copy of this
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** software and associated documentation files (the "Software"), to deal in the Software
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** without restriction, including without limitation the rights to use, copy, modify,
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** merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
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** permit persons to whom the Software is furnished to do so, subject to the following conditions:
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**
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** The above copyright notice and this permission notice shall be included in all copies or
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** substantial portions of the Software.
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**
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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** NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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** DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**
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******************************************************************************************************/
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#ifndef QMUPARSER_H
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#define QMUPARSER_H
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#include <qcompilerdetection.h>
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#include <QString>
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#include <QtGlobal>
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#include <locale>
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#include "qmuparser_global.h"
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#include "qmuparserbase.h"
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/**
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* @file
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* @brief Definition of the standard floating point parser.
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*/
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namespace qmu
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{
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/** @brief Mathematical expressions parser.
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*
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* Standard implementation of the mathematical expressions parser.
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* Can be used as a reference implementation for subclassing the parser.
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*
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* <small>
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* (C) 2011 Ingo Berg<br>
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* muparser(at)gmx.de
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* </small>
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*/
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/* final */ class QMUPARSERSHARED_EXPORT QmuParser : public QmuParserBase
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{
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public:
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QmuParser();
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virtual void InitCharSets() Q_DECL_OVERRIDE;
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virtual void InitFun() Q_DECL_OVERRIDE;
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virtual void InitConst() Q_DECL_OVERRIDE;
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virtual void InitOprt() Q_DECL_OVERRIDE;
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virtual void OnDetectVar(const QString &pExpr, int &nStart, int &nEnd) Q_DECL_OVERRIDE;
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qreal Diff(qreal *a_Var, qreal a_fPos, qreal a_fEpsilon = 0) const;
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protected:
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static int IsVal(const QString &a_szExpr, int *a_iPos, qreal *a_fVal, const QLocale &locale,
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const QChar &decimal, const QChar &thousand);
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// hyperbolic functions
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static qreal Sinh(qreal);
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static qreal Cosh(qreal);
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static qreal Tanh(qreal);
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// arcus hyperbolic functions
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static qreal ASinh(qreal);
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static qreal ACosh(qreal);
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static qreal ATanh(qreal);
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// functions working with degrees
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static qreal DegreeToRadian(qreal);
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static qreal RadianToDegree(qreal);
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static qreal SinD(qreal);
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static qreal CosD(qreal);
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static qreal TanD(qreal);
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static qreal ASinD(qreal);
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static qreal ACosD(qreal);
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static qreal ATanD(qreal);
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// Logarithm functions
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static qreal Log2(qreal); // Logarithm Base 2
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static qreal Log10(qreal); // Logarithm Base 10
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// misc
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static qreal Abs(qreal);
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static qreal Rint(qreal);
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static qreal Sign(qreal);
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static qreal FMod(qreal, qreal);
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// Prefix operators
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// !!! Unary Minus is a MUST if you want to use negative signs !!!
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static qreal UnaryMinus(qreal v);
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// Functions with variable number of arguments
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static qreal Sum(const qreal*, int); // sum
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static qreal Avg(const qreal*, int); // mean value
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static qreal Min(const qreal*, int); // minimum
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static qreal Max(const qreal*, int); // maximum
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};
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//---------------------------------------------------------------------------------------------------------------------
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/**
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* @brief Callback for the unary minus operator.
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* @param v The value to negate
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* @return -v
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*/
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inline qreal QmuParser::UnaryMinus(qreal v)
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{
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return -v;
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}
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} // namespace qmu
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#endif // QMUPARSER_H
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