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round_sat.hh
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// Copyright (C) 2007, 2009 EPITA Research and Development Laboratory (LRDE)
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//
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// This file is part of Olena.
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//
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// Olena is free software: you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, version 2 of the License.
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//
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// Olena is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Olena. If not, see <http://www.gnu.org/licenses/>.
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//
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// As a special exception, you may use this file as part of a free
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// software project without restriction. Specifically, if other files
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// instantiate templates or use macros or inline functions from this
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// file, or you compile this file and link it with other files to produce
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// an executable, this file does not by itself cause the resulting
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// executable to be covered by the GNU General Public License. This
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// exception does not however invalidate any other reasons why the
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// executable file might be covered by the GNU General Public License.
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#ifndef MLN_MATH_ROUND_SAT_HH
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# define MLN_MATH_ROUND_SAT_HH
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# include <cmath>
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# include <mln/core/concept/function.hh>
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# include <mln/trait/value_.hh>
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namespace
mln
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{
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namespace
math
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{
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template
<
typename
R>
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struct
round_sat_ :
public
Function_v2v< round_sat_<R> >
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{
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typedef
R result;
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template
<
typename
T>
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result operator()(
const
T& v)
const
;
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};
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# ifndef MLN_INCLUDE_ONLY
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template
<
typename
R>
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template
<
typename
T>
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inline
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R round_sat_<R>::operator()(
const
T& v)
const
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{
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long
int
l = (
long
int)(v + 0.49999);
// FIXME: !!!
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return
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l < mln_min(R)
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? mln_min(R)
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: (l > mln_max(R)
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? mln_max(R)
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: R(l));
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}
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# endif // ! MLN_INCLUDE_ONLY
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}
// end of namespace mln::math
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}
// end of namespace mln
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#endif // ! MLN_MATH_ROUND_SAT_HH
mln
math
round_sat.hh
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