/usr/include/fflas-ffpack/fflas/fflas_fcopy.inl is in fflas-ffpack-common 1.6.0-1.
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// vim:sts=8:sw=8:ts=8:noet:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
/* fflas/fflas_fcopy.inl
* Copyright (C) 2007 Clement Pernet
*
* Written by Clement Pernet <Clement.Pernet@imag.fr>
*
*
* ========LICENCE========
* This file is part of the library FFLAS-FFPACK.
*
* FFLAS-FFPACK 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 __FFLASFFPACK_fcopy_INL
#define __FFLASFFPACK_fcopy_INL
#include <string.h>
namespace FFLAS {
template<class Field>
inline void
fcopy (const Field& F, const size_t N,
typename Field::Element * X, const size_t incX,
const typename Field::Element * Y, const size_t incY )
{
typename Field::Element * Xi = X;
const typename Field::Element * Yi=Y;
if (incY == 1 && incY == 1) {
// memcpy(X,Y,N*sizeof(typename Field::Element)); // much faster (hopefully)
for (; Xi < X+N; ++Xi, ++Yi)
F.assign(*Xi,*Yi);
return;
}
for (; Xi < X+N*incX; Xi+=incX, Yi+=incY )
F.assign(*Xi,*Yi);
return;
}
template<class Field>
void fcopy (const Field& F, const size_t m, const size_t n,
typename Field::Element * A, const size_t lda,
const typename Field::Element * B, const size_t ldb )
{
FFLASFFPACK_check(n<=lda);
FFLASFFPACK_check(n<=ldb);
// if possible, copy one big block
if (lda == n && ldb == n) {
fcopy(F,m*n,A,1,B,1);
return ;
}
// else, copy row after row
for (size_t i = 0 ; i < m ; ++i) {
fcopy(F,n,A+i*lda,1,B+i*ldb,1);
}
return;
}
}
#endif // __FFLASFFPACK_fcopy_INL
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