/usr/include/Gyoto/GyotoFunctors.h is in libgyoto2-dev 0.2.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | /**
* \file GyotoFunctors.h
* \brief Classes with an operator() method
*/
/*
Copyright 2011 Thibaut Paumard
This file is part of Gyoto.
Gyoto is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Gyoto 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 General Public License
along with Gyoto. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GyotoFunctors_H_
#define __GyotoFunctors_H_
namespace Gyoto {
/**
* \namespace Gyoto::Functor
* \brief Classes with an operator() method
*/
namespace Functor {
class Double_constDoubleArray;
class Double_Double_const;
}
}
/**
* \brief A functor like double (func) (double const data[])
*/
class Gyoto::Functor::Double_constDoubleArray
{
public:
/**
* \brief The actual function
*/
virtual double operator()(double const data[]) = 0;
};
/**
* \brief A functor like double (func) (double) const
*/
class Gyoto::Functor::Double_Double_const
{
public:
/**
* \brief Exit status code of "various" methods (at least secant() !)
*/
int status;
/**
* \brief The actual function
*/
virtual double operator()(double) const = 0;
/**
* \brief Ridder's root-finding method applied on operator()()
* \param from, to boundaries for root-searching
* \return the root
*/
double ridders(double from, double to) const;
/**
* \brief Secant root-finding method applied on operator()()
*
* Sets status to
* -0 in case of convergence
* -1 if two distinct inputs evaluated to the same output
* -2 if maximum number of iterations (20) reached
*
* \param from, to boundaries for root-finding
* \return the root
*/
double secant(double from, double to);
};
#endif
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