Mercurial > octave-nkf
view src/ov-uint64.h @ 8964:f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Date: Sun, 8 Mar 2009 16:28:18 -0400
These preserve sparsity, so eye(5) * sprand (5, 5, .2) is *sparse*
and not dense. This may affect people who use multiplication by
eye() rather than full().
The liboctave routines do *not* check if arguments are scalars in
disguise. There is a type problem with checking at that level. I
suspect we want diag * "sparse scalar" to stay diagonal, but we have
to return a sparse matrix at the liboctave. Rather than worrying
about that in liboctave, we cope with it when binding to Octave and
return the correct higher-level type.
The implementation is in Sparse-diag-op-defs.h rather than
Sparse-op-defs.h to limit recompilation. And the implementations
are templates rather than macros to produce better compiler errors
and debugging information.
author | Jason Riedy <jason@acm.org> |
---|---|
date | Mon, 09 Mar 2009 17:49:13 -0400 |
parents | eb63fbe60fab |
children | e793865ede63 |
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/* Copyright (C) 2004, 2005, 2006, 2007, 2008 John W. Eaton This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave 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 General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if !defined (octave_uint64_h) #define octave_uint64_h 1 #define OCTAVE_INT_T octave_uint64 #define OCTAVE_VALUE_INT_MATRIX_T octave_uint64_matrix #define OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION uint64_array_value #define OCTAVE_VALUE_INT_SCALAR_T octave_uint64_scalar #define OCTAVE_VALUE_INT_SCALAR_EXTRACTOR_FUNCTION uint64_scalar_value #define OCTAVE_TYPE_PREDICATE_FUNCTION is_uint64_type #define OCTAVE_INT_MX_CLASS mxUINT64_CLASS #include "ov-intx.h" #undef OCTAVE_INT_T #undef OCTAVE_VALUE_INT_MATRIX_T #undef OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION #undef OCTAVE_VALUE_INT_SCALAR_T #undef OCTAVE_VALUE_INT_SCALAR_EXTRACTOR_FUNCTION #undef OCTAVE_TYPE_PREDICATE_FUNCTION #undef OCTAVE_INT_MX_CLASS #endif /* ;;; Local Variables: *** ;;; mode: C++ *** ;;; End: *** */