50 lines
2.7 KiB
C++
Executable File
50 lines
2.7 KiB
C++
Executable File
/***************************************************************************
|
||
* evalc.h is part of Math Graphic Library
|
||
* Copyright (C) 2007-2016 Alexey Balakin <mathgl.abalakin@gmail.ru> *
|
||
* *
|
||
* This program is free software; you can redistribute it and/or modify *
|
||
* it under the terms of the GNU Library General Public License as *
|
||
* published by the Free Software Foundation; either version 3 of the *
|
||
* License, or (at your option) any later version. *
|
||
* *
|
||
* This program is distributed in the hope that it will be useful, *
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
||
* GNU General Public License for more details. *
|
||
* *
|
||
* You should have received a copy of the GNU Library General Public *
|
||
* License along with this program; if not, write to the *
|
||
* Free Software Foundation, Inc., *
|
||
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
|
||
***************************************************************************/
|
||
#ifndef _MGL_EVALC_H_
|
||
#define _MGL_EVALC_H_
|
||
//-----------------------------------------------------------------------------
|
||
#include "mgl2/eval.h"
|
||
//-----------------------------------------------------------------------------
|
||
/// Class for evaluating formula specified by the string
|
||
class MGL_EXPORT mglFormulaC // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
{
|
||
public:
|
||
/// Evaluates the formula for 'x','r'=\a x, 'y','n'=\a y, 'z','t'=\a z, 'u'=\a u
|
||
dual Calc(dual x,dual y=0,dual z=0,dual u=0) const MGL_FUNC_PURE;
|
||
/// Evaluates the formula for 'x, y, z, u, v, w'
|
||
dual Calc(dual x,dual y,dual z,dual u,dual v,dual w) const MGL_FUNC_PURE;
|
||
/// Evaluates the formula for variables var
|
||
dual Calc(const dual var[MGL_VS]) const MGL_FUNC_PURE;
|
||
/// Return error code
|
||
inline int GetError() const { return Error; }
|
||
/// Parse the formula str and create formula-tree
|
||
mglFormulaC(const char *str);
|
||
/// Clean up formula-tree
|
||
virtual ~mglFormulaC();
|
||
protected:
|
||
dual CalcIn(const dual *a1) const MGL_FUNC_PURE;
|
||
mglFormulaC *Left,*Right; // first and second argument of the function
|
||
int Kod; // the function ID
|
||
dual Res; // the number or the variable ID
|
||
static int Error;
|
||
};
|
||
//-----------------------------------------------------------------------------
|
||
#endif
|