The C and C++ Include Header Files

/usr/include/c++/11/parallel/checkers.h


$ cat -n /usr/include/c++/11/parallel/checkers.h

     1	// -*- C++ -*-
     2	
     3	// Copyright (C) 2007-2021 Free Software Foundation, Inc.
     4	//
     5	// This file is part of the GNU ISO C++ Library.  This library is free
     6	// software; you can redistribute it and/or modify it under the terms
     7	// of the GNU General Public License as published by the Free Software
     8	// Foundation; either version 3, or (at your option) any later
     9	// version.
    10	
    11	// This library is distributed in the hope that it will be useful, but
    12	// WITHOUT ANY WARRANTY; without even the implied warranty of
    13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    14	// General Public License for more details.
    15	
    16	// Under Section 7 of GPL version 3, you are granted additional
    17	// permissions described in the GCC Runtime Library Exception, version
    18	// 3.1, as published by the Free Software Foundation.
    19	
    20	// You should have received a copy of the GNU General Public License and
    21	// a copy of the GCC Runtime Library Exception along with this program;
    22	// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
    23	// <http://www.gnu.org/licenses/>.
    24	
    25	/** @file parallel/checkers.h
    26	 *  @brief Routines for checking the correctness of algorithm results.
    27	 *  This file is a GNU parallel extension to the Standard C++ Library.
    28	 */
    29	
    30	// Written by Johannes Singler.
    31	
    32	#ifndef _GLIBCXX_PARALLEL_CHECKERS_H
    33	#define _GLIBCXX_PARALLEL_CHECKERS_H 1
    34	
    35	#include <cstdio>
    36	#include <bits/stl_algobase.h>
    37	#include <bits/stl_function.h>
    38	
    39	namespace __gnu_parallel
    40	{
    41	  /**
    42	   * @brief Check whether @c [__begin, @c __end) is sorted according
    43	   * to @c __comp.
    44	   * @param __begin Begin iterator of sequence.
    45	   * @param __end End iterator of sequence.
    46	   * @param __comp Comparator.
    47	   * @return @c true if sorted, @c false otherwise.
    48	   */
    49	  template<typename _IIter, typename _Compare>
    50	    bool
    51	    __is_sorted(_IIter __begin, _IIter __end, _Compare __comp)
    52	    {
    53	      if (__begin == __end)
    54	        return true;
    55	
    56	      _IIter __current(__begin), __recent(__begin);
    57	
    58	      for (__current++; __current != __end; __current++)
    59	        {
    60	          if (__comp(*__current, *__recent))
    61	            {
    62	              return false;
    63	            }
    64	          __recent = __current;
    65	        }
    66	
    67	      return true;
    68	    }
    69	}
    70	
    71	#endif /* _GLIBCXX_PARALLEL_CHECKERS_H */