FM / parallel

/usr/include/c++/8/parallel

Name	Size	Mode	Actions
algo.h	80030	0644	edit dl rm
algobase.h	17155	0644	edit dl rm
algorithm	1381	0644	edit dl rm
algorithmfwd.h	32206	0644	edit dl rm
balanced_quicksort.h	16952	0644	edit dl rm
base.h	12373	0644	edit dl rm
basic_iterator.h	1586	0644	edit dl rm
checkers.h	2300	0644	edit dl rm
compatibility.h	3790	0644	edit dl rm
compiletime_settings.h	2871	0644	edit dl rm
equally_split.h	3356	0644	edit dl rm
features.h	3543	0644	edit dl rm
find.h	13591	0644	edit dl rm
find_selectors.h	6992	0644	edit dl rm
for_each.h	3947	0644	edit dl rm
for_each_selectors.h	10565	0644	edit dl rm
iterator.h	5678	0644	edit dl rm
list_partition.h	6542	0644	edit dl rm
losertree.h	28592	0644	edit dl rm
merge.h	9578	0644	edit dl rm
multiseq_selection.h	22075	0644	edit dl rm
multiway_merge.h	70535	0644	edit dl rm
multiway_mergesort.h	15271	0644	edit dl rm
numeric	20717	0644	edit dl rm
numericfwd.h	7500	0644	edit dl rm
omp_loop.h	4031	0644	edit dl rm
omp_loop_static.h	4104	0644	edit dl rm
parallel.h	1576	0644	edit dl rm
partial_sum.h	7474	0644	edit dl rm
partition.h	14961	0644	edit dl rm
par_loop.h	4552	0644	edit dl rm
queue.h	5542	0644	edit dl rm
quicksort.h	6126	0644	edit dl rm
random_number.h	4227	0644	edit dl rm
random_shuffle.h	18675	0644	edit dl rm
search.h	5391	0644	edit dl rm
settings.h	12458	0644	edit dl rm
set_operations.h	14590	0644	edit dl rm
sort.h	7709	0644	edit dl rm
tags.h	5982	0644	edit dl rm
types.h	3716	0644	edit dl rm
unique_copy.h	6165	0644	edit dl rm
workstealing.h	9612	0644	edit dl rm

Edit: /usr/include/c++/8/parallel/for_each.h (3947B)

// -*- C++ -*-

// Copyright (C) 2007-2018 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/for_each.h
 *  @brief Main interface for embarrassingly parallel functions.
 *
 *  The explicit implementation are in other header files, like
 *  workstealing.h, par_loop.h, omp_loop.h, and omp_loop_static.h.
 *  This file is a GNU parallel extension to the Standard C++ Library.
 */

// Written by Felix Putze.

#ifndef _GLIBCXX_PARALLEL_FOR_EACH_H
#define _GLIBCXX_PARALLEL_FOR_EACH_H 1

#include <parallel/settings.h>
#include <parallel/par_loop.h>
#include <parallel/omp_loop.h>
#include <parallel/workstealing.h>

namespace __gnu_parallel
{
  /** @brief Chose the desired algorithm by evaluating @c __parallelism_tag.
   *  @param __begin Begin iterator of input sequence.
   *  @param __end End iterator of input sequence.
   *  @param __user_op A user-specified functor (comparator, predicate,
   *  associative operator,...)
   *  @param __functionality functor to @a process an element with
   *  __user_op (depends on desired functionality, e. g. accumulate,
   *  for_each,...
   *  @param __reduction Reduction functor.
   *  @param __reduction_start Initial value for reduction.
   *  @param __output Output iterator.
   *  @param __bound Maximum number of elements processed.
   *  @param __parallelism_tag Parallelization method */
  template<typename _IIter, typename _UserOp,
           typename _Functionality, typename _Red, typename _Result>
    _UserOp
    __for_each_template_random_access(_IIter __begin, _IIter __end,
                                      _UserOp __user_op,
                                      _Functionality& __functionality,
                                      _Red __reduction,
                                      _Result __reduction_start,
                                      _Result& __output, typename
                                      std::iterator_traits<_IIter>::
                                      difference_type __bound,
                                      _Parallelism __parallelism_tag)
    {
      if (__parallelism_tag == parallel_unbalanced)
        return __for_each_template_random_access_ed
	  (__begin, __end, __user_op, __functionality, __reduction,
	   __reduction_start, __output, __bound);
      else if (__parallelism_tag == parallel_omp_loop)
        return __for_each_template_random_access_omp_loop
	  (__begin, __end, __user_op, __functionality, __reduction,
	   __reduction_start, __output, __bound);
      else if (__parallelism_tag == parallel_omp_loop_static)
        return __for_each_template_random_access_omp_loop
	  (__begin, __end, __user_op, __functionality, __reduction,
	   __reduction_start, __output, __bound);
      else      //e. g. parallel_balanced
        return __for_each_template_random_access_workstealing
	  (__begin, __end, __user_op, __functionality, __reduction,
	   __reduction_start, __output, __bound);
  }
}

#endif /* _GLIBCXX_PARALLEL_FOR_EACH_H */

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