libstdc++
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00001 // Wrapper of C-language FILE struct -*- C++ -*- 00002 00003 // Copyright (C) 2000-2015 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the 00007 // terms of the GNU General Public License as published by the 00008 // Free Software Foundation; either version 3, or (at your option) 00009 // any later version. 00010 00011 // This library is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 00016 // Under Section 7 of GPL version 3, you are granted additional 00017 // permissions described in the GCC Runtime Library Exception, version 00018 // 3.1, as published by the Free Software Foundation. 00019 00020 // You should have received a copy of the GNU General Public License and 00021 // a copy of the GCC Runtime Library Exception along with this program; 00022 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 00023 // <http://www.gnu.org/licenses/>. 00024 00025 // 00026 // ISO C++ 14882: 27.8 File-based streams 00027 // 00028 00029 /** @file bits/basic_file.h 00030 * This is an internal header file, included by other library headers. 00031 * Do not attempt to use it directly. @headername{ios} 00032 */ 00033 00034 #ifndef _GLIBCXX_BASIC_FILE_STDIO_H 00035 #define _GLIBCXX_BASIC_FILE_STDIO_H 1 00036 00037 #pragma GCC system_header 00038 00039 #include <bits/c++config.h> 00040 #include <bits/c++io.h> // for __c_lock and __c_file 00041 #include <bits/move.h> // for swap 00042 #include <ios> 00043 00044 namespace std _GLIBCXX_VISIBILITY(default) 00045 { 00046 _GLIBCXX_BEGIN_NAMESPACE_VERSION 00047 00048 // Generic declaration. 00049 template<typename _CharT> 00050 class __basic_file; 00051 00052 // Specialization. 00053 template<> 00054 class __basic_file<char> 00055 { 00056 // Underlying data source/sink. 00057 __c_file* _M_cfile; 00058 00059 // True iff we opened _M_cfile, and thus must close it ourselves. 00060 bool _M_cfile_created; 00061 00062 public: 00063 __basic_file(__c_lock* __lock = 0) throw (); 00064 00065 #if __cplusplus >= 201103L 00066 __basic_file(__basic_file&& __rv, __c_lock* __lock = 0) noexcept 00067 : _M_cfile(__rv._M_cfile), _M_cfile_created(__rv._M_cfile_created) 00068 { 00069 __rv._M_cfile = nullptr; 00070 __rv._M_cfile_created = false; 00071 } 00072 00073 __basic_file& operator=(const __basic_file&) = delete; 00074 __basic_file& operator=(__basic_file&&) = delete; 00075 00076 void 00077 swap(__basic_file& __f) noexcept 00078 { 00079 std::swap(_M_cfile, __f._M_cfile); 00080 std::swap(_M_cfile_created, __f._M_cfile_created); 00081 } 00082 #endif 00083 00084 __basic_file* 00085 open(const char* __name, ios_base::openmode __mode, int __prot = 0664); 00086 00087 __basic_file* 00088 sys_open(__c_file* __file, ios_base::openmode); 00089 00090 __basic_file* 00091 sys_open(int __fd, ios_base::openmode __mode) throw (); 00092 00093 __basic_file* 00094 close(); 00095 00096 _GLIBCXX_PURE bool 00097 is_open() const throw (); 00098 00099 _GLIBCXX_PURE int 00100 fd() throw (); 00101 00102 _GLIBCXX_PURE __c_file* 00103 file() throw (); 00104 00105 ~__basic_file(); 00106 00107 streamsize 00108 xsputn(const char* __s, streamsize __n); 00109 00110 streamsize 00111 xsputn_2(const char* __s1, streamsize __n1, 00112 const char* __s2, streamsize __n2); 00113 00114 streamsize 00115 xsgetn(char* __s, streamsize __n); 00116 00117 streamoff 00118 seekoff(streamoff __off, ios_base::seekdir __way) throw (); 00119 00120 int 00121 sync(); 00122 00123 streamsize 00124 showmanyc(); 00125 }; 00126 00127 _GLIBCXX_END_NAMESPACE_VERSION 00128 } // namespace 00129 00130 #endif