1// -*- C++ -*- forwarding header.
3// Copyright (C) 2001-2025 Free Software Foundation, Inc.
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)
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.
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.
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/>.
26 * This is a Standard C++ Library file. You should @c \#include this file
27 * in your programs, rather than any of the @a *.h implementation files.
29 * This is the C++ version of the Standard C Library header @c iso646.h,
30 * which is empty in C++.
32 * @since C++11 (removed in C++20)
34#ifndef _GLIBCXX_CISO646
35#define _GLIBCXX_CISO646
38#pragma GCC system_header
41#include <bits/c++config.h>
43#if __cplusplus >= 202002L
44# if ! _GLIBCXX_USE_DEPRECATED
45# error "<ciso646> is not a standard header since C++20, use <version> to detect implementation-specific macros"
46# elif defined __DEPRECATED
47# pragma GCC diagnostic push
48# pragma GCC diagnostic ignored "-Wc++23-extensions"
49# warning "<ciso646> is not a standard header since C++20, use <version> to detect implementation-specific macros"
50# pragma GCC diagnostic pop
1.13.2