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The C and C++ Include Header Files

/usr/include/c++/11/forward_list


$ cat -n /usr/include/c++/11/forward_list

     1	// <forward_list> -*- C++ -*-
     2	
     3	// Copyright (C) 2008-2021 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
     7	// terms of the GNU General Public License as published by the
     8	// Free Software Foundation; either version 3, or (at your option)
     9	// any later version.
    10	
    11	// This library is distributed in the hope that it will be useful,
    12	// but WITHOUT ANY WARRANTY; without even the implied warranty of
    13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14	// GNU 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 include/forward_list
    26	 *  This is a Standard C++ Library header.
    27	 */
    28	
    29	#ifndef _GLIBCXX_FORWARD_LIST
    30	#define _GLIBCXX_FORWARD_LIST 1
    31	
    32	#pragma GCC system_header
    33	
    34	#if __cplusplus < 201103L
    35	# include <bits/c++0x_warning.h>
    36	#else
    37	
    38	#include <bits/forward_list.h>
    39	#include <bits/range_access.h>
    40	#include <bits/forward_list.tcc>
    41	
    42	#ifdef _GLIBCXX_DEBUG
    43	# include <debug/forward_list>
    44	#endif
    45	
    46	#if __cplusplus >= 201703L
    47	namespace std _GLIBCXX_VISIBILITY(default)
    48	{
    49	_GLIBCXX_BEGIN_NAMESPACE_VERSION
    50	  namespace pmr
    51	  {
    52	    template<typename _Tp> class polymorphic_allocator;
    53	    template<typename _Tp>
    54	      using forward_list = std::forward_list<_Tp, polymorphic_allocator<_Tp>>;
    55	  } // namespace pmr
    56	_GLIBCXX_END_NAMESPACE_VERSION
    57	} // namespace std
    58	#endif // C++17
    59	
    60	#if __cplusplus > 201703L
    61	namespace std _GLIBCXX_VISIBILITY(default)
    62	{
    63	_GLIBCXX_BEGIN_NAMESPACE_VERSION
    64	
    65	#define __cpp_lib_erase_if 202002L
    66	
    67	  template<typename _Tp, typename _Alloc, typename _Predicate>
    68	    inline typename forward_list<_Tp, _Alloc>::size_type 
    69	    erase_if(forward_list<_Tp, _Alloc>& __cont, _Predicate __pred)
    70	    { return __cont.remove_if(__pred); }
    71	
    72	  template<typename _Tp, typename _Alloc, typename _Up>
    73	    inline typename forward_list<_Tp, _Alloc>::size_type
    74	    erase(forward_list<_Tp, _Alloc>& __cont, const _Up& __value)
    75	    {
    76	      using __elem_type = typename forward_list<_Tp, _Alloc>::value_type;
    77	      return std::erase_if(__cont, [&](__elem_type& __elem) {
    78		  return __elem == __value;
    79	      });
    80	    }
    81	_GLIBCXX_END_NAMESPACE_VERSION
    82	} // namespace std
    83	#endif // C++20
    84	
    85	#endif // C++11
    86	
    87	#endif // _GLIBCXX_FORWARD_LIST