/usr/include/getfem/bgeot_imbricated_box.h is in libgetfem++-dev 4.2.1~beta1~svn4482~dfsg-2build1.
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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 | /* -*- c++ -*- (enables emacs c++ mode) */
/*===========================================================================
Copyright (C) 2005-2012 Yves Renard
This file is a part of GETFEM++
Getfem++ is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version along with the GCC Runtime Library
Exception either version 3.1 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 Lesser General Public
License and GCC Runtime Library Exception for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
As a special exception, you may use this file as it is a part of a free
software library without restriction. Specifically, if other files
instantiate templates or use macros or inline functions from this file,
or you compile this file and link it with other files to produce an
executable, this file does not by itself cause the resulting executable
to be covered by the GNU Lesser General Public License. This exception
does not however invalidate any other reasons why the executable file
might be covered by the GNU Lesser General Public License.
===========================================================================*/
/**@file bgeot_imbricated_box.h
@author Yves Renard <Yves.Renard@insa-lyon.fr>
@date January 26, 1999.
@brief A comparison function for bgeot::base_node
*/
#ifndef BGEOT_IMBRICATED_BOX
#define BGEOT_IMBRICATED_BOX
#include "bgeot_vector.h"
namespace bgeot {
inline scalar_type sfloor(scalar_type x)
{ return (x >= 0) ? floor(x) : -floor(-x); }
/// A comparison function for bgeot::base_node
struct imbricated_box_less
: public std::binary_function<base_node, base_node, int>
{
mutable int exp_max, exp_min;
mutable scalar_type c_max;
unsigned base;
/// comparaison function
int operator()(const base_node &x, const base_node &y) const;
imbricated_box_less(unsigned ba = 10, int emi = -15, int ema = -2) {
base = ba; exp_max = ema; exp_min = emi;
c_max = pow(double(base), double(-exp_max));
}
};
}
#endif
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