1 // Wrapper of C-language FILE struct -*- C++ -*- 2 3 // Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 4 // Free Software Foundation, Inc. 5 // 6 // This file is part of the GNU ISO C++ Library. This library is free 7 // software; you can redistribute it and/or modify it under the 8 // terms of the GNU General Public License as published by the 9 // Free Software Foundation; either version 3, or (at your option) 10 // any later version. 11 12 // This library is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 17 // Under Section 7 of GPL version 3, you are granted additional 18 // permissions described in the GCC Runtime Library Exception, version 19 // 3.1, as published by the Free Software Foundation. 20 21 // You should have received a copy of the GNU General Public License and 22 // a copy of the GCC Runtime Library Exception along with this program; 23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 // <http://www.gnu.org/licenses/>. 25 26 // 27 // ISO C++ 14882: 27.8 File-based streams 28 // 29 30 /** @file bits/basic_file.h 31 * This is an internal header file, included by other library headers. 32 * Do not attempt to use it directly. @headername{ios} 33 */ 34 35 #ifndef _GLIBCXX_BASIC_FILE_STDIO_H 36 #define _GLIBCXX_BASIC_FILE_STDIO_H 1 37 38 #pragma GCC system_header 39 40 #include <bits/c++config.h> 41 #include <bits/c++io.h> // for __c_lock and __c_file 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 __basic_file* 66 open(const char* __name, ios_base::openmode __mode, int __prot = 0664); 67 68 __basic_file* 69 sys_open(__c_file* __file, ios_base::openmode); 70 71 __basic_file* 72 sys_open(int __fd, ios_base::openmode __mode) throw (); 73 74 __basic_file* 75 close(); 76 77 _GLIBCXX_PURE bool 78 is_open() const throw (); 79 80 _GLIBCXX_PURE int 81 fd() throw (); 82 83 _GLIBCXX_PURE __c_file* 84 file() throw (); 85 86 ~__basic_file(); 87 88 streamsize 89 xsputn(const char* __s, streamsize __n); 90 91 streamsize 92 xsputn_2(const char* __s1, streamsize __n1, 93 const char* __s2, streamsize __n2); 94 95 streamsize 96 xsgetn(char* __s, streamsize __n); 97 98 streamoff 99 seekoff(streamoff __off, ios_base::seekdir __way) throw (); 100 101 int 102 sync(); 103 104 streamsize 105 showmanyc(); 106 }; 107 108 _GLIBCXX_END_NAMESPACE_VERSION 109 } // namespace 110 111 #endif 112