view libinterp/octave-value/ov-uint32.h @ 31260:c5c8bf50449c

Improve performance of isfield from linear time to constant time (bug #58105) Patch author: Anonymous in Bug #58105 Comment #7 https://savannah.gnu.org/bugs/index.php?58105#comment7 The isfield function was taking time proportional to the number of fields in a struct to determine whether something was a member or not. With this change, isfield performance becomes constant irrespective of the number of fields, speeding up performance by over 200X, and also allowing the use of struct as a hashmap if the user desires. ov-base.h: Add new isfield function declaration ov-base.cc: Add new isfield function definition ov-struct.h: Add new isfield function definitions ov-struct.cc: Do not call map_value ov.h: Add new isfield function definition
author Arun Giridhar <arungiridhar@gmail.com>
date Wed, 05 Oct 2022 10:35:31 -0400
parents 796f54d4ddbf
children 597f3ee61a48
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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2004-2022 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// 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
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

#if ! defined (octave_ov_uint32_h)
#define octave_ov_uint32_h 1

#include "octave-config.h"

#define OCTAVE_INT_T octave_uint32

#define OCTAVE_VALUE_INT_MATRIX_T octave_uint32_matrix
#define OCTAVE_VALUE_INT_NDARRAY_EXTRACTOR_FUNCTION uint32_array_value

#define OCTAVE_VALUE_INT_SCALAR_T octave_uint32_scalar
#define OCTAVE_VALUE_INT_SCALAR_EXTRACTOR_FUNCTION uint32_scalar_value

#define OCTAVE_TYPE_PREDICATE_FUNCTION is_uint32_type

#define OCTAVE_INT_MX_CLASS mxUINT32_CLASS

#define OCTAVE_INT_BTYP btyp_uint32

#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

#undef OCTAVE_INT_BTYP

#endif