valentina_old/src/libs/qmuparser/qmuparser.h

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