basic_file.h source code [include/x86_64-linux-gnu/c++/7/bits/basic

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

std::__basic_file::_M_cfile

std::__basic_file::_M_cfile_created

std::__basic_file::swap

std::__basic_file::open

std::__basic_file::sys_open

std::__basic_file::close

std::__basic_file::is_open

std::__basic_file::fd

std::__basic_file::file

std::__basic_file::xsputn

std::__basic_file::xsputn_2

std::__basic_file::xsgetn

std::__basic_file::seekoff

std::__basic_file::sync

std::__basic_file::showmanyc

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