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-// -*- C++ -*-
-
-// Copyright (C) 2007, 2009 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/equally_split.h
- * This file is a GNU parallel extension to the Standard C++ Library.
- */
-
-// Written by Johannes Singler.
-
-#ifndef _GLIBCXX_PARALLEL_EQUALLY_SPLIT_H
-#define _GLIBCXX_PARALLEL_EQUALLY_SPLIT_H 1
-
-namespace __gnu_parallel
-{
-/** @brief Function to split a sequence into parts of almost equal size.
- *
- * The resulting sequence s of length num_threads+1 contains the splitting
- * positions when splitting the range [0,n) into parts of almost
- * equal size (plus minus 1). The first entry is 0, the last one
- * n. There may result empty parts.
- * @param n Number of elements
- * @param num_threads Number of parts
- * @param s Splitters
- * @returns End of splitter sequence, i. e. @c s+num_threads+1 */
-template<typename difference_type, typename OutputIterator>
- OutputIterator
- equally_split(difference_type n, thread_index_t num_threads, OutputIterator s)
- {
- difference_type chunk_length = n / num_threads;
- difference_type num_longer_chunks = n % num_threads;
- difference_type pos = 0;
- for (thread_index_t i = 0; i < num_threads; ++i)
- {
- *s++ = pos;
- pos += (i < num_longer_chunks) ? (chunk_length + 1) : chunk_length;
- }
- *s++ = n;
- return s;
- }
-
-
-/** @brief Function to split a sequence into parts of almost equal size.
- *
- * Returns the position of the splitting point between
- * thread number thread_no (included) and
- * thread number thread_no+1 (excluded).
- * @param n Number of elements
- * @param num_threads Number of parts
- * @returns _SplittingAlgorithm point */
-template<typename difference_type>
- difference_type
- equally_split_point(difference_type n,
- thread_index_t num_threads,
- thread_index_t thread_no)
- {
- difference_type chunk_length = n / num_threads;
- difference_type num_longer_chunks = n % num_threads;
- if (thread_no < num_longer_chunks)
- return thread_no * (chunk_length + 1);
- else
- return num_longer_chunks * (chunk_length + 1)
- + (thread_no - num_longer_chunks) * chunk_length;
- }
-}
-
-#endif /* _GLIBCXX_PARALLEL_EQUALLY_SPLIT_H */