/usr/include/givaro/givarithmetics.h is in libgivaro-dev 4.0.2-5.
This file is owned by root:root, with mode 0o644.
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// $Source: /var/lib/cvs/Givaro/src/library/tools/givarithmetics.h,v $
// Copyright(c)'1994-2009 by The Givaro group
// This file is part of Givaro.
// Givaro is governed by the CeCILL-B license under French law
// and abiding by the rules of distribution of free software.
// see the COPYRIGHT file for more details.
// Authors: T. Gautier
// $Id: givarithmetics.h,v 1.2 2009-09-17 14:28:23 jgdumas Exp $
// ==========================================================================
// Description:
// - definition of standard arithmetics over Vector & Matrix
#ifndef __GIVARO_arithmethics_H
#define __GIVARO_arithmethics_H
//
#include "givaro/givconfig.h"
namespace Givaro {
template<class Domain>
struct KSpace {
// -- exported types
typedef Domain Domain_t;
typedef typename Domain::Rep Entry_t;
typedef typename Domain::Type_t Scalar_t;
typedef KSpace<Domain> Self_t;
// -- Cstor
KSpace() : _domain(), _entry() {};
KSpace(const Domain_t& D) : _domain(D), _entry() {};
KSpace(const Domain_t& D, size_t dim ) : _domain(D), _entry()
{
_domain.init(_entry, dim);
};
KSpace(const Self_t& S) : _domain(S._domain)
{
_domain.assign(_entry,S._entry);
};
// -- Destor: implicit
// -- assignment:
Self_t& operator= (const Self_t& e ) {
e._domain.assign(_entry, e._entry);
return *this;
}
// -- arithmetic operators:
Self_t& operator+= ( const Self_t& a ) {
_domain.addin( _entry, a._entry );
return *this;
}
Self_t& operator-= ( const Self_t& a ) {
_domain.subin( _entry, a._entry );
return *this;
}
Self_t& operator*= ( const Scalar_t& v ) {
typedef typename Domain::Domain_t SubDomain_t; // domain of the scalar
Curried2<MulOp<SubDomain_t> > opcode( _domain.subdomain(), v);
_domain.map( _entry, opcode, _entry );
return *this;
}
Self_t operator+ ( const Self_t& a ) const {
KSpace<Domain> res(_domain);
_domain.init( res._entry, _domain.dim(_entry) );
_domain.add( res._entry, _entry, a._entry );
return res;
}
Self_t operator- ( const Self_t& a ) const {
KSpace<Domain> res(_domain);
_domain.init( res._entry, _domain.dim(_entry) );
_domain.sub( res._entry, _entry, a._entry );
return res;
}
Self_t operator* ( const Scalar_t& v ) const {
typedef typename Domain::Domain_t SubDomain_t; // domain of the scalar
KSpace<Domain> res(_domain);
_domain.init( res._entry, _domain.dim(_entry) );
Curried2<MulOp<SubDomain_t> > opcode( _domain.subdomain(), (Scalar_t&)v);
_domain.map( res._entry, opcode, _entry );
return res;
}
Scalar_t& operator[] (int i) { return _entry[i]; }
const Scalar_t& operator[] (int i) const { return _entry[i]; }
// -- representation
const Domain_t _domain;
Entry_t _entry;
};
// -- friend operator
template<class Domain>
KSpace<Domain> operator*
( const typename KSpace<Domain>::Scalar_t& v, const KSpace<Domain>& U )
{
typedef typename KSpace<Domain>::Scalar_t Scalar_t;
typedef typename Domain::Domain_t SubDomain_t; // domain of the scalar
KSpace<Domain> res(U._domain);
U._domain.init( res._entry, U._domain.dim(U._entry) );
Curried1<MulOp<SubDomain_t> > opcode( U._domain.subdomain(), (Scalar_t&)v);
U._domain.map( res._entry, opcode, U._entry );
return res;
}
template<class Domain>
inline void dotprod(
typename Domain::Scalar_t& dot,
const KSpace<Domain>& U,
const KSpace<Domain>& V)
{
U._domain.dot(dot, U._entry, V._entry);
}
template<class Domain>
inline ostream& operator<<(ostream& sout, const KSpace<Domain>& U )
{
return U._domain.write(sout, U._entry);
}
template<class Domain>
inline istream& operator>>(istream& sin, KSpace<Domain>& U )
{
return U._domain.read(sin, U._entry);
}
} // Givaro
#endif
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