1// Underlying io library details -*- C++ -*- 
2 
3// Copyright (C) 2000-2019 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++io.h 
26 * This is an internal header file, included by other library headers. 
27 * Do not attempt to use it directly. @headername{ios} 
28 */ 
29 
30// c_io_stdio.h - Defines for using "C" stdio.h 
31 
32#ifndef _GLIBCXX_CXX_IO_H 
33#define _GLIBCXX_CXX_IO_H 1 
34 
35#include <cstdio> 
36#include <bits/gthr.h> 
37 
38namespace std _GLIBCXX_VISIBILITY(default) 
39{ 
40_GLIBCXX_BEGIN_NAMESPACE_VERSION 
41 
42 typedef __gthread_mutex_t __c_lock; 
43 
44 // for basic_file.h 
45 typedef FILE __c_file; 
46 
47_GLIBCXX_END_NAMESPACE_VERSION 
48} // namespace 
49 
50#endif 
51