libstdc++-v3/include/parallel/features.h

// -*- C++ -*-

// Copyright (C) 2007-2026 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library 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, 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
// General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file parallel/features.h
 *  @brief Defines on whether to include algorithm variants.
 *
 *  Less variants reduce executable size and compile time.
 *  This file is a GNU parallel extension to the Standard C++ Library.
 */

// Written by Johannes Singler.

#ifndef _GLIBCXX_PARALLEL_FEATURES_H
#define _GLIBCXX_PARALLEL_FEATURES_H 1

#ifndef _GLIBCXX_MERGESORT
/** @def _GLIBCXX_MERGESORT
 *  @brief Include parallel multi-way mergesort.
 *  @see __gnu_parallel::_Settings::sort_algorithm */
#define _GLIBCXX_MERGESORT 1
#endif

#ifndef _GLIBCXX_QUICKSORT
/** @def _GLIBCXX_QUICKSORT
 *  @brief Include parallel unbalanced quicksort.
 *  @see __gnu_parallel::_Settings::sort_algorithm */
#define _GLIBCXX_QUICKSORT 1
#endif

#ifndef _GLIBCXX_BAL_QUICKSORT
/** @def _GLIBCXX_BAL_QUICKSORT
 *  @brief Include parallel dynamically load-balanced quicksort.
 *  @see __gnu_parallel::_Settings::sort_algorithm */
#define _GLIBCXX_BAL_QUICKSORT 1
#endif

#ifndef _GLIBCXX_FIND_GROWING_BLOCKS
/** @brief Include the growing blocks variant for std::find.
 *  @see __gnu_parallel::_Settings::find_algorithm */
#define _GLIBCXX_FIND_GROWING_BLOCKS 1
#endif

#ifndef _GLIBCXX_FIND_CONSTANT_SIZE_BLOCKS
/** @brief Include the equal-sized blocks variant for std::find.
 *  @see __gnu_parallel::_Settings::find_algorithm */
#define _GLIBCXX_FIND_CONSTANT_SIZE_BLOCKS 1
#endif

#ifndef _GLIBCXX_FIND_EQUAL_SPLIT
/** @def _GLIBCXX_FIND_EQUAL_SPLIT
 *  @brief Include the equal splitting variant for std::find.
 *  @see __gnu_parallel::_Settings::find_algorithm */
#define _GLIBCXX_FIND_EQUAL_SPLIT 1
#endif


#ifndef _GLIBCXX_TREE_INITIAL_SPLITTING
/** @def _GLIBCXX_TREE_INITIAL_SPLITTING
 *  @brief Include the initial splitting variant for
 *  _Rb_tree::insert_unique(_IIter beg, _IIter __end).
 *  @see __gnu_parallel::_Rb_tree */
#define _GLIBCXX_TREE_INITIAL_SPLITTING 1
#endif

#ifndef _GLIBCXX_TREE_DYNAMIC_BALANCING
/** @def _GLIBCXX_TREE_DYNAMIC_BALANCING
 *  @brief Include the dynamic balancing variant for
 *  _Rb_tree::insert_unique(_IIter beg, _IIter __end).
 *  @see __gnu_parallel::_Rb_tree */
#define _GLIBCXX_TREE_DYNAMIC_BALANCING 1
#endif

#ifndef _GLIBCXX_TREE_FULL_COPY
/** @def _GLIBCXX_TREE_FULL_COPY
 *  @brief In order to sort the input sequence of
 *  _Rb_tree::insert_unique(_IIter beg, _IIter __end) a
 *  full copy of the input elements is done.
 *  @see __gnu_parallel::_Rb_tree */
#define _GLIBCXX_TREE_FULL_COPY 1
#endif


#endif /* _GLIBCXX_PARALLEL_FEATURES_H */