1    	// Wrapper of C-language FILE struct -*- C++ -*-
2    	
3    	// Copyright (C) 2000-2017 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   	//
26   	// ISO C++ 14882: 27.8  File-based streams
27   	//
28   	
29   	/** @file bits/basic_file.h
30   	 *  This is an internal header file, included by other library headers.
31   	 *  Do not attempt to use it directly. @headername{ios}
32   	 */
33   	
34   	#ifndef _GLIBCXX_BASIC_FILE_STDIO_H
35   	#define _GLIBCXX_BASIC_FILE_STDIO_H 1
36   	
37   	#pragma GCC system_header
38   	
39   	#include <bits/c++config.h>
40   	#include <bits/c++io.h>  // for __c_lock and __c_file
41   	#include <bits/move.h>   // for swap
42   	#include <ios>
43   	
44   	namespace std _GLIBCXX_VISIBILITY(default)
45   	{
46   	_GLIBCXX_BEGIN_NAMESPACE_VERSION
47   	
48   	  // Generic declaration.
49   	  template<typename _CharT>
50   	    class __basic_file;
51   	
52   	  // Specialization.
53   	  template<>
54   	    class __basic_file<char>
55   	    {
56   	      // Underlying data source/sink.
57   	      __c_file* 	_M_cfile;
58   	
59   	      // True iff we opened _M_cfile, and thus must close it ourselves.
60   	      bool 		_M_cfile_created;
61   	
62   	    public:
63   	      __basic_file(__c_lock* __lock = 0) throw ();
64   	
65   	#if __cplusplus >= 201103L
66   	      __basic_file(__basic_file&& __rv, __c_lock* __lock = 0) noexcept
67   	      : _M_cfile(__rv._M_cfile), _M_cfile_created(__rv._M_cfile_created)
68   	      {
69   		__rv._M_cfile = nullptr;
70   		__rv._M_cfile_created = false;
71   	      }
72   	
73   	      __basic_file& operator=(const __basic_file&) = delete;
74   	      __basic_file& operator=(__basic_file&&) = delete;
75   	
76   	      void
77   	      swap(__basic_file& __f) noexcept
78   	      {
79   		std::swap(_M_cfile, __f._M_cfile);
80   		std::swap(_M_cfile_created, __f._M_cfile_created);
81   	      }
82   	#endif
83   	
84   	      __basic_file*
85   	      open(const char* __name, ios_base::openmode __mode, int __prot = 0664);
86   	
87   	      __basic_file*
88   	      sys_open(__c_file* __file, ios_base::openmode);
89   	
90   	      __basic_file*
91   	      sys_open(int __fd, ios_base::openmode __mode) throw ();
92   	
93   	      __basic_file*
94   	      close();
95   	
96   	      _GLIBCXX_PURE bool
97   	      is_open() const throw ();
98   	
99   	      _GLIBCXX_PURE int
100  	      fd() throw ();
101  	
102  	      _GLIBCXX_PURE __c_file*
103  	      file() throw ();
104  	
105  	      ~__basic_file();
106  	
107  	      streamsize
108  	      xsputn(const char* __s, streamsize __n);
109  	
110  	      streamsize
111  	      xsputn_2(const char* __s1, streamsize __n1,
112  		       const char* __s2, streamsize __n2);
113  	
114  	      streamsize
115  	      xsgetn(char* __s, streamsize __n);
116  	
117  	      streamoff
118  	      seekoff(streamoff __off, ios_base::seekdir __way) throw ();
119  	
120  	      int
121  	      sync();
122  	
123  	      streamsize
124  	      showmanyc();
125  	    };
126  	
127  	_GLIBCXX_END_NAMESPACE_VERSION
128  	} // namespace
129  	
130  	#endif
131