basic_file.h

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00001 // Wrapper of C-language FILE struct -*- C++ -*- 00002 00003 // Copyright (C) 2000, 2001, 2002 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 2, 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 // You should have received a copy of the GNU General Public License along 00017 // with this library; see the file COPYING. If not, write to the Free 00018 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 00019 // USA. 00020 00021 // As a special exception, you may use this file as part of a free software 00022 // library without restriction. Specifically, if other files instantiate 00023 // templates or use macros or inline functions from this file, or you compile 00024 // this file and link it with other files to produce an executable, this 00025 // file does not by itself cause the resulting executable to be covered by 00026 // the GNU General Public License. This exception does not however 00027 // invalidate any other reasons why the executable file might be covered by 00028 // the GNU General Public License. 00029 00030 // 00031 // ISO C++ 14882: 27.8 File-based streams 00032 // 00033 00034 /** @file basic_file.h 00035 * This is an internal header file, included by other library headers. 00036 * You should not attempt to use it directly. 00037 */ 00038 00039 #ifndef _CPP_BASIC_FILE 00040 #define _CPP_BASIC_FILE 1 00041 00042 #pragma GCC system_header 00043 00044 #include <bits/c++config.h> 00045 #include <ios> 00046 00047 namespace std 00048 { 00049 // Generic declaration. 00050 template<typename _CharT> 00051 class __basic_file; 00052 00053 // Specialization. 00054 template<> 00055 class __basic_file<char> 00056 { 00057 // Underlying data source/sink. 00058 __c_file* _M_cfile; 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); 00064 00065 void 00066 _M_open_mode(ios_base::openmode __mode, int& __p_mode, int& __rw_mode, 00067 char* __c_mode); 00068 00069 __basic_file* 00070 open(const char* __name, ios_base::openmode __mode, int __prot = 0664); 00071 00072 __basic_file* 00073 sys_open(__c_file* __file, ios_base::openmode); 00074 00075 __basic_file* 00076 sys_open(int __fd, ios_base::openmode __mode, bool __del); 00077 00078 int 00079 sys_getc(); 00080 00081 int 00082 sys_ungetc(int); 00083 00084 __basic_file* 00085 close(); 00086 00087 bool 00088 is_open() const; 00089 00090 int 00091 fd(); 00092 00093 ~__basic_file(); 00094 00095 streamsize 00096 xsputn(const char* __s, streamsize __n); 00097 00098 streamsize 00099 xsgetn(char* __s, streamsize __n); 00100 00101 streamoff 00102 seekoff(streamoff __off, ios_base::seekdir __way, 00103 ios_base::openmode __mode = ios_base::in | ios_base::out); 00104 00105 streamoff 00106 seekpos(streamoff __pos, 00107 ios_base::openmode __mode = ios_base::in | ios_base::out); 00108 00109 int 00110 sync(); 00111 00112 streamsize 00113 showmanyc_helper(); 00114 }; 00115 } // namespace std 00116 00117 #endif // _CPP_BASIC_FILE

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