/usr/include/linbox/vector/vector-domain-gf2.h is in liblinbox-dev 1.3.2-1.1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2001-2002 Bradford Hovinen
*
* Written by Bradford Hovinen <hovinen@cis.udel.edu>
*
* ------------------------------------
* 2002-04-10 Bradford Hovinen <hovinen@cis.udel.edu>
*
* There are now two vector domain types: VectorDomainBase and
* VectorDomain. VectorDomainBase, which in principle can be used independently,
* contains all functions that require only one vector type (such as axpy, mul,
* read, and write). VectorDomain inherits VectorDomainBase and implements
* dotprod, which requires two vector types.
*
* ------------------------------------
* Modified by Dmitriy Morozov <linbox@foxcub.org>. May 27, 2002.
*
* Added the modifications for categories and vector traits that were designed
* at the Rootbeer meeting. Added parametrization of VectorTags by VectorTraits.
*
* ------------------------------------
* 2002-06-04 Bradford Hovinen <hovinen@cis.udel.edu>
*
* Reverted change of 2002-04-10, reintegrating VectorDomain and
* VectorDomainBase. Now using template specialization on the functions, now
* that I know how to do it.
*
* ------------------------------------
* 2002-06-21 Bradford Hovinen <hovinen@cis.udel.edu>
*
* Added methods add, addin, sub, subin, areEqual, isZero, and copy.
*
* ------------------------------------
*
*
* ========LICENCE========
* This file is part of the library LinBox.
*
* LinBox 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*.
*/
#ifndef __LINBOX_field_vector_domain_gf2_H
#define __LINBOX_field_vector_domain_gf2_H
#include "linbox/field/gf2.h"
#include "linbox/vector/vector-domain.h"
// DotProduct
namespace LinBox
{
// Specialization of DotProductDomain for GF2
template<>
class DotProductDomain<GF2> : private virtual VectorDomainBase<GF2> {
public:
typedef bool Element;
DotProductDomain (const GF2 &F) :
VectorDomainBase<GF2> (F)
{}
protected:
template <class Vector1, class Vector2>
inline Element &dotSpecializedDD (Element &res, const Vector1 &v1, const Vector2 &v2) const;
template <class Vector1, class Vector2>
inline Element &dotSpecializedDSP (Element &res, const Vector1 &v1, const Vector2 &v2) const;
template <class Vector1, class Vector2>
inline BitVector::reference dotSpecializedDD (BitVector::reference res, const Vector1 &v1, const Vector2 &v2) const;
template <class Vector1, class Vector2>
inline BitVector::reference dotSpecializedDSP (BitVector::reference res, const Vector1 &v1, const Vector2 &v2) const;
};
}
// Specialization of vector domain
namespace LinBox
{
template <>
class VectorDomain<GF2> : private virtual VectorDomainBase<GF2>, private virtual DotProductDomain<GF2> {
public:
typedef bool Element;
VectorDomain (const VectorDomain &VD) :
VectorDomainBase<GF2> (VD._field), DotProductDomain<GF2> (VD._field)
{}
VectorDomain &operator = (const VectorDomain &) { return *this; }
const GF2 &field () const
{
return _field;
}
template <class Vector>
inline std::ostream &write (std::ostream &os, const Vector &x) const
{
return writeSpecialized (os, x, typename VectorTraits<Vector>::VectorCategory ());
}
template <class Vector>
inline std::istream &read (std::istream &is, Vector &x) const
{
return readSpecialized (is, x, typename VectorTraits<Vector>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Vector1 © (Vector1 &res, const Vector2 &v) const
{
return copySpecialized (res, v,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Vector1 © (Vector1 &res, const Vector2 &v, size_t i, size_t len = 0) const
{
return copySpecialized (res, v, i, len,
typename VectorTraits<Vector1>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline bool areEqual (const Vector1 &v1, const Vector2 &v2) const
{
return areEqualSpecialized (v1, v2,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory ());
}
template <class Vector>
inline bool isZero (const Vector &v) const
{
return isZeroSpecialized (v, typename VectorTraits<Vector>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Element &dot (Element &res, const Vector1 &v1, const Vector2 &v2) const
{
return dotSpecialized (res, v1, v2,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline BitVector::reference dot (BitVector::reference res, const Vector1 &v1, const Vector2 &v2) const
{
return dotSpecialized (res, v1, v2,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Element &dotprod (Element &res, const Vector1 &v1, const Vector2 &v2) const
{
return dot (res, v1, v2);
}
template <class Vector1, class Vector2, class Vector3>
inline Vector1 &add (Vector1 &res, const Vector2 &y, const Vector3 &x) const
{
return addSpecialized (res, y, x,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory (),
typename VectorTraits<Vector3>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Vector1 &addin (Vector1 &y, const Vector2 &x) const
{
return addinSpecialized (y, x,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory ());
}
template <class Vector1, class Vector2, class Vector3>
inline Vector1 &sub (Vector1 &res, const Vector2 &y, const Vector3 &x) const
{
return addSpecialized (res, y, x,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory (),
typename VectorTraits<Vector3>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Vector1 &subin (Vector1 &y, const Vector2 &x) const
{
return addinSpecialized (y, x,
typename VectorTraits<Vector1>::VectorCategory (),
typename VectorTraits<Vector2>::VectorCategory ());
}
template <class Vector1, class Vector2>
inline Vector1 &neg (Vector1 &res, const Vector2 &x) const
{
copy (res, x);
return res;
}
template <class Vector>
inline Vector &negin (Vector &y) const
{
return y;
}
template <class Vector1, class Vector2>
inline Vector1 &mul (Vector1 &res, const Vector2 &x, const Element a) const
{
return mulSpecialized (res, x, a, typename VectorTraits<Vector1>::VectorCategory ());
}
template <class Vector>
inline Vector &mulin (Vector &x, const Element a) const
{
return mulinSpecialized (x, a, typename VectorTraits<Vector>::VectorCategory ());
}
template <class Vector1, class Vector2, class Vector3>
inline Vector1 &axpy (Vector1 &res, const Element a, const Vector2 &x, const Vector3 &y) const
{
if (a)
add (res, x, y);
else
this->copy (res, y);
return res;
}
template <class Vector1, class Vector2>
inline Vector1 &axpyin (Vector1 &y, const Element a, const Vector2 &x) const
{
if (a)
addin (y, x);
return y;
}
VectorDomain (const GF2 &F) :
VectorDomainBase<GF2> (F), DotProductDomain<GF2> (F)
{}
// Specialized function implementations
template <class Vector>
std::ostream &writeSpecialized (std::ostream &os, const Vector &x,
VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector>
std::ostream &writeSpecialized (std::ostream &os, const Vector &x,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector>
std::istream &readSpecialized (std::istream &is, const Vector &x,
VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector>
std::istream &readSpecialized (std::istream &is, const Vector &x,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
bool areEqualSpecialized (const Vector1 &v1, const Vector2 &v2,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
bool areEqualSpecialized (const Vector1 &v1, const Vector2 &v2,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
inline bool areEqualSpecialized (const Vector1 &v1, const Vector2 &v2,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
return areEqual (v2, v1);
}
template <class Vector1, class Vector2>
bool areEqualSpecialized (const Vector1 &v1, const Vector2 &v2,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector>
bool isZeroSpecialized (const Vector &v, VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector>
inline bool isZeroSpecialized (const Vector &v,
VectorCategories::SparseZeroOneVectorTag) const
{
return v.empty ();
}
template <class Vector1, class Vector2>
inline Vector1 ©Specialized (Vector1 &res, const Vector2 &v,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
std::copy (v.wordBegin (), v.wordEnd (), res.wordBegin ()); return res;
}
template <class Vector1, class Vector2>
inline Vector1 ©Specialized (Vector1 &res, const Vector2 &v, size_t i, size_t len, VectorCategories::DenseZeroOneVectorTag) const
{
std::copy (v.begin (), (len == 0) ? v.end () : v.begin () + len, res.begin () + i);
return res;
}
template <class Vector1, class Vector2>
inline Vector1 ©Specialized (Vector1 &res, const Vector2 &v, size_t i, size_t len, VectorCategories::DenseVectorTag) const
{
std::copy (v.begin (), (len == 0) ? v.end () : v.begin () + len, res.begin () + i);
return res;
}
template <class Vector1, class Vector2>
Vector1 ©Specialized (Vector1 &res, const Vector2 &v,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
Vector1 ©Specialized (Vector1 &res, const Vector2 &v,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
inline Vector1 ©Specialized (Vector1 &res, const Vector2 &v,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const
{ res = v; return res; }
template <class Vector1, class Vector2>
inline Element &dotSpecialized (Element &res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
return DotProductDomain<GF2>::dotSpecializedDD (res, v1, v2);
}
template <class Vector1, class Vector2>
inline Element &dotSpecialized (Element &res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const
{
return DotProductDomain<GF2>::dotSpecializedDSP (res, v1, v2);
}
template <class Vector1, class Vector2>
inline Element &dotSpecialized (Element &res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
return DotProductDomain<GF2>::dotSpecializedDSP (res, v2, v1);
}
template <class Vector1, class Vector2>
Element &dotSpecialized (Element &res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
inline BitVector::reference dotSpecialized (BitVector::reference res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
return DotProductDomain<GF2>::dotSpecializedDD (res, v1, v2);
}
template <class Vector1, class Vector2>
inline BitVector::reference dotSpecialized (BitVector::reference res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const
{
return DotProductDomain<GF2>::dotSpecializedDSP (res, v1, v2);
}
template <class Vector1, class Vector2>
inline BitVector::reference dotSpecialized (BitVector::reference res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
return DotProductDomain<GF2>::dotSpecializedDSP (res, v2, v1);
}
template <class Vector1, class Vector2>
BitVector::reference dotSpecialized (BitVector::reference res, const Vector1 &v1, const Vector2 &v2,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2, class Vector3>
Vector1 &addSpecialized (Vector1 &res, const Vector2 &y, const Vector3 &x,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector1, class Vector2, class Vector3>
Vector1 &addSpecialized (Vector1 &res, const Vector2 &y, const Vector3 &x,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const
{
copy (res, y);
addin (res, x);
}
template <class Vector1, class Vector2, class Vector3>
Vector1 &addSpecialized (Vector1 &res, const Vector2 &y, const Vector3 &x,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
Vector1 &addinSpecialized (Vector1 &y, const Vector2 &x,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
Vector1 &addinSpecialized (Vector1 &y, const Vector2 &x,
VectorCategories::DenseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const;
template <class Vector1, class Vector2>
Vector1 &addinSpecialized (Vector1 &y, const Vector2 &x,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::DenseZeroOneVectorTag) const
{
Vector1 xp, res;
copy (xp, x);
add (res, y, xp);
copy (y, res);
return y;
}
template <class Vector1, class Vector2>
Vector1 &addinSpecialized (Vector1 &y, const Vector2 &x,
VectorCategories::SparseZeroOneVectorTag,
VectorCategories::SparseZeroOneVectorTag) const
{
Vector1 res;
add (res, y, x);
this->copy (y, res);
return y;
}
template <class Vector1, class Vector2>
Vector1 &mulSpecialized (Vector1 &res, const Vector2 &x, const Element a,
VectorCategories::DenseZeroOneVectorTag ) const
{
if (a)
this->copy (res, x);
else
std::fill (res.wordBegin (), res.wordEnd (), 0);
return res;
}
template <class Vector1, class Vector2>
Vector1 &mulSpecialized (Vector1 &res, const Vector2 &x, const Element a,
VectorCategories::SparseZeroOneVectorTag ) const
{
if (a)
this->copy (res, x);
else
res.clear ();
return res;
}
template <class Vector>
inline Vector &mulinSpecialized (Vector &x, const Element a,
VectorCategories::DenseZeroOneVectorTag) const
{
if (!a)
std::fill (x.wordBegin (), x.wordEnd (), 0);
return x;
}
template <class Vector>
inline Vector &mulinSpecialized (Vector &x, const Element a,
VectorCategories::SparseZeroOneVectorTag ) const
{
if (!a)
x.clear ();
return x;
}
template <class Vector1, class Vector2, class Vector3>
inline Vector1 &addSpecialized (Vector1 &res, const Vector2 &y, const Vector3 &x,
VectorCategories::GenericVectorTag,
VectorCategories::GenericVectorTag,
VectorCategories::GenericVectorTag) const
{
typename LinBox::Vector<GF2>::Sparse v;
typename LinBox::Vector<GF2>::Sparse w;
typename LinBox::Vector<GF2>::Sparse u;
copy (v, x);
copy (w, y);
add (u, w, v);
copy (res, u);
return u;
}
template <class Vector1, class Vector2, class Vector3>
inline Vector1 &subSpecialized (Vector1 &res, const Vector2 &y, const Vector3 &x,
VectorCategories::GenericVectorTag,
VectorCategories::GenericVectorTag,
VectorCategories::GenericVectorTag) const
{
typename LinBox::Vector<GF2>::Sparse v;
typename LinBox::Vector<GF2>::Sparse w;
typename LinBox::Vector<GF2>::Sparse u;
copy (v, x);
copy (w, y);
sub (u, w, v);
copy (res, u);
return u;
}
};
}
#include "linbox/vector/vector-domain-gf2.inl"
#endif // __LINBOX_field_vector_domain_H
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