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64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra. Eigen itself is part of the KDE project.
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//
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// Copyright (C) 2006-2007 Benoit Jacob <jacob@math.jussieu.fr>
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//
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// Eigen is free software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the Free Software
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// Foundation; either version 2 or (at your option) any later version.
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//
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// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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// details.
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//
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// You should have received a copy of the GNU General Public License along
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// with Eigen; if not, write to the Free Software Foundation, Inc., 51
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// Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. This exception does not invalidate any other reasons why a work
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// based on this file might be covered by the GNU General Public License.
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#ifndef EIGEN_NUMTRAITS_H
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#define EIGEN_NUMTRAITS_H
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template<typename T> struct NumTraits;
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template<> struct NumTraits<int>
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{
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typedef int Real;
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typedef double FloatingPoint;
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static const bool IsComplex = false;
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static const bool HasFloatingPoint = false;
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};
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template<> struct NumTraits<float>
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{
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typedef float Real;
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typedef float FloatingPoint;
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static const bool IsComplex = false;
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static const bool HasFloatingPoint = true;
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};
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template<> struct NumTraits<double>
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{
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typedef double Real;
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typedef double FloatingPoint;
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static const bool IsComplex = false;
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static const bool HasFloatingPoint = true;
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};
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template<typename _Real> struct NumTraits<std::complex<_Real> >
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{
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typedef _Real Real;
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typedef std::complex<_Real> FloatingPoint;
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static const bool IsComplex = true;
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static const bool HasFloatingPoint = NumTraits<Real>::HasFloatingPoint;
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};
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#endif // EIGEN_NUMTRAITS_H
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