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The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/c++/11/bits/c++allocator.h


$ cat -n /usr/include/x86_64-linux-gnu/c++/11/bits/c++allocator.h

     1	// Base to std::allocator -*- C++ -*-
     2	
     3	// Copyright (C) 2004-2021 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 bits/c++allocator.h
    26	 *  This is an internal header file, included by other library headers.
    27	 *  Do not attempt to use it directly. @headername{memory}
    28	 */
    29	
    30	#ifndef _GLIBCXX_CXX_ALLOCATOR_H
    31	#define _GLIBCXX_CXX_ALLOCATOR_H 1
    32	
    33	#include <ext/new_allocator.h>
    34	
    35	#if __cplusplus >= 201103L
    36	namespace std
    37	{
    38	  /**
    39	   *  @brief  An alias to the base class for std::allocator.
    40	   *
    41	   *  Used to set the std::allocator base class to
    42	   *  __gnu_cxx::new_allocator.
    43	   *
    44	   *  @ingroup allocators
    45	   *  @tparam  _Tp  Type of allocated object.
    46	    */
    47	  template<typename _Tp>
    48	    using __allocator_base = __gnu_cxx::new_allocator<_Tp>;
    49	}
    50	#else
    51	// Define new_allocator as the base class to std::allocator.
    52	# define __allocator_base  __gnu_cxx::new_allocator
    53	#endif
    54	
    55	#ifndef _GLIBCXX_SANITIZE_STD_ALLOCATOR
    56	# if defined(__SANITIZE_ADDRESS__)
    57	#  define _GLIBCXX_SANITIZE_STD_ALLOCATOR 1
    58	# elif defined __has_feature
    59	#  if __has_feature(address_sanitizer)
    60	#   define _GLIBCXX_SANITIZE_STD_ALLOCATOR 1
    61	#  endif
    62	# endif
    63	#endif
    64	
    65	#endif