/usr/include/rheolef/rounder.h is in librheolef-dev 6.5-1+b1.
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 | #ifndef _RHEOLEF_ROUNDER_H
#define _RHEOLEF_ROUNDER_H
///
/// This file is part of Rheolef.
///
/// Copyright (C) 2000-2009 Pierre Saramito <Pierre.Saramito@imag.fr>
///
/// Rheolef 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 2 of the License, or
/// (at your option) any later version.
///
/// Rheolef 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 Rheolef; if not, write to the Free Software
/// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
///
/// =========================================================================
#include "rheolef/compiler.h"
#include <cmath>
namespace rheolef {
template <class T>
struct rounder_type : std::unary_function<T,T> {
rounder_type (const T& prec) : _prec(prec) {}
T operator() (const T& x) const {
// use floor : std::round() is non-standard (INTEL C++)
T value = _prec*std::floor(x/_prec + 0.5);
if (1+value == 1) value = 0;
return value;
}
T _prec;
};
template <class T>
struct floorer_type : std::unary_function<T,T> {
floorer_type (const T& prec) : _prec(prec) {}
T operator() (const T& x) const {
T value = _prec*std::floor(x/_prec);
if (1+value == 1) value = 0;
return value;
}
T _prec;
};
template <class T>
struct ceiler_type : std::unary_function<T,T> {
ceiler_type (const T& prec) : _prec(prec) {}
T operator() (const T& x) const {
T value = _prec*std::ceil(x/_prec);
if (1+value == 1) value = 0;
return value;
}
T _prec;
};
template <class T> rounder_type<T> rounder (const T& prec) { return rounder_type<T>(prec); }
template <class T> floorer_type<T> floorer (const T& prec) { return floorer_type<T>(prec); }
template <class T> ceiler_type<T> ceiler (const T& prec) { return ceiler_type<T>(prec); }
template<class T, class M>
field_basic<T,M>
round (
const field_basic<T,M>& uh,
const T& prec)
{
field_basic<T,M> vh (uh.get_space());
std::transform (uh.begin_dof(), uh.end_dof(), vh.begin_dof(), rounder(prec));
return vh;
}
template<class Expr, class T2>
field_basic<
typename field_expr<Expr>::scalar_type
,typename field_expr<Expr>::memory_type
>
round (
const field_expr<Expr>& expr,
const T2& prec)
{
typedef typename field_expr<Expr>::scalar_type T;
typedef typename field_expr<Expr>::memory_type M;
return round (field_basic<T,M>(expr), prec);
}
}//namespace rheolef
#endif // _RHEOLEF_ROUNDER_H
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