| // -*- C++ -*- forwarding header. | 
 |  | 
 | // Copyright (C) 2001-2025 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 ciso646 | 
 |  *  This is a Standard C++ Library file.  You should @c #include this file | 
 |  *  in your programs, rather than any of the "*.h" implementation files. | 
 |  * | 
 |  *  This is the C++ version of the Standard C Library header @c iso646.h, | 
 |  *  which is empty in C++. | 
 |  */ | 
 | #ifndef _GLIBCXX_CISO646 | 
 | #define _GLIBCXX_CISO646 | 
 |  | 
 | #ifdef _GLIBCXX_SYSHDR | 
 | #pragma GCC system_header | 
 | #endif | 
 |  | 
 | #include <bits/c++config.h> | 
 | #endif |