libstdc++-v3/config/io/basic_file_stdio.h

   1 // Wrapper of C-language FILE struct -*- C++ -*-
   2
   3 // Copyright (C) 2000-2014 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 <ios>
  42
  43 namespace std _GLIBCXX_VISIBILITY(default)
  44 {
  45 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  46
  47   // Generic declaration.
  48   template<typename _CharT>
  49     class __basic_file;
  50
  51   // Specialization.
  52   template<>
  53     class __basic_file<char>
  54     {
  55       // Underlying data source/sink.
  56       __c_file*         _M_cfile;
  57
  58       // True iff we opened _M_cfile, and thus must close it ourselves.
  59       bool              _M_cfile_created;
  60
  61     public:
  62       __basic_file(__c_lock* __lock = 0) throw ();
  63
  64       __basic_file*
  65       open(const char* __name, ios_base::openmode __mode, int __prot = 0664);
  66
  67       __basic_file*
  68       sys_open(__c_file* __file, ios_base::openmode);
  69
  70       __basic_file*
  71       sys_open(int __fd, ios_base::openmode __mode) throw ();
  72
  73       __basic_file*
  74       close();
  75
  76       _GLIBCXX_PURE bool
  77       is_open() const throw ();
  78
  79       _GLIBCXX_PURE int
  80       fd() throw ();
  81
  82       _GLIBCXX_PURE __c_file*
  83       file() throw ();
  84
  85       ~__basic_file();
  86
  87       streamsize
  88       xsputn(const char* __s, streamsize __n);
  89
  90       streamsize
  91       xsputn_2(const char* __s1, streamsize __n1,
  92                const char* __s2, streamsize __n2);
  93
  94       streamsize
  95       xsgetn(char* __s, streamsize __n);
  96
  97       streamoff
  98       seekoff(streamoff __off, ios_base::seekdir __way) throw ();
  99
 100       int
 101       sync();
 102
 103       streamsize
 104       showmanyc();
 105     };
 106
 107 _GLIBCXX_END_NAMESPACE_VERSION
 108 } // namespace
 109
 110 #endif