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/// This file is part of Rheolef.
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/// Copyright (C) 2000-2009 Pierre Saramito <Pierre.Saramito@imag.fr>
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/// Rheolef is free software; you can redistribute it and/or modify
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/// it under the terms of the GNU General Public License as published by
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/// the Free Software Foundation; either version 2 of the License, or
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/// (at your option) any later version.
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/// Rheolef 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
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/// GNU General Public License for more details.
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/// You should have received a copy of the GNU General Public License
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/// along with Rheolef; if not, write to the Free Software
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/// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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/// =========================================================================
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// intel c++ portability issue:
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// point.h declares friend norm(point x) member and this implementations
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// generates a buggy result. It has been replaced by an extern implementation
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// of norm(point x) and the result is portable.
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#include "rheolef/point.h"
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using namespace rheolef;
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Float phi_1 (const point& x) { return norm(x) - 1; }
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Float phi_2 (const point& x) { return sqrt(sqr(x[0])+sqr(x[1])+sqr(x[2])) - 1; }
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int main (int argc, char**argv) {
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#ifdef _RHEOLEF_USE_NEW_CODE
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environment rheolef(argc, argv);
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#endif // _RHEOLEF_USE_NEW_CODE
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Float tol = sqrt(std::numeric_limits<Float>::epsilon());
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Float p = sqrt(Float(14))-1;
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Float err = fabs(p-p1);
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cout << "phi (x)="<<p <<endl;
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cout << "phi_2(x)="<<p2<<endl;
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cout << "phi_1(x)="<<p1<<endl;
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cout << "err ="<<err<<endl;
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return (err < tol) ? 0 : 1;
added
removed
nfem/geo_element/point_norm_tst.cc
