re PR libstdc++/14600 (__gnu_cxx::stdio_sync_filebuf should expose internal FILE*)

2004-05-29  Richard B. Kreckel  <Richard.Kreckel@Framatome-ANP.com>
            Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/14600
	* include/ext/stdio_sync_filebuf.h (stdio_sync_filebuf::file): New.
	* include/ext/stdio_filebuf.h (stdio_filebuf::file): New.
	* config/io/basic_file_stdio.cc (__basic_file::file): New.
	* config/io/basic_file_stdio.h: Define.

Co-Authored-By: Benjamin Kosnik <bkoz@redhat.com>

From-SVN: r82419

libstdc++-v3/ChangeLog

+2004-05-29  Richard B. Kreckel  <Richard.Kreckel@Framatome-ANP.com>
+            Benjamin Kosnik  <bkoz@redhat.com>
+	
+	PR libstdc++/14600
+	* include/ext/stdio_sync_filebuf.h (stdio_sync_filebuf::file): New.
+	* include/ext/stdio_filebuf.h (stdio_filebuf::file): New.
+	* config/io/basic_file_stdio.cc (__basic_file::file): New.
+	* config/io/basic_file_stdio.h: Define.
+
 2004-05-27  Benjamin Kosnik  <bkoz@redhat.com>
 
 	PR libstdc++/15675

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

@@ -240,7 +240,11 @@ namespace std
   
   int 
   __basic_file<char>::fd() 
-  { return fileno(_M_cfile) ; }
+  { return fileno(_M_cfile); }
+  
+  __c_file*
+  __basic_file<char>::file() 
+  { return _M_cfile; }
   
   __basic_file<char>* 
   __basic_file<char>::close()

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

@@ -81,6 +81,9 @@ namespace std
       int 
       fd();
 
+      __c_file*
+      file();
+
       ~__basic_file();
 
       streamsize 

libstdc++-v3/include/ext/stdio_filebuf.h

 // File descriptor layer for filebuf -*- C++ -*-
 
-// Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+// Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -63,6 +63,11 @@ namespace __gnu_cxx
 
     public:
       /**
+       * deferred initialization
+      */
+      stdio_filebuf() : std::basic_filebuf<_CharT, _Traits>() {}
+
+      /**
        *  @param  fd  An open file descriptor.
        *  @param  mode  Same meaning as in a standard filebuf.
        *  @param  size  Optimal or preferred size of internal buffer, in chars.
@@ -103,8 +108,17 @@ namespace __gnu_cxx
        *  descriptor, so be careful.
       */
       int
-      fd()
-      { return this->_M_file.fd(); }
+      fd() { return this->_M_file.fd(); }
+
+      /**
+       *  @return  The underlying FILE*.
+       *
+       *  This function can be used to access the underlying "C" file pointer.
+       *  Note that there is no way for the library to track what you do
+       *  with the file, so be careful.
+       */
+      std::__c_file*
+      file() { return this->_M_file.file(); }
     };
 
   template<typename _CharT, typename _Traits>

libstdc++-v3/include/ext/stdio_sync_filebuf.h

@@ -71,6 +71,16 @@ namespace __gnu_cxx
       : _M_file(__f), _M_unget_buf(traits_type::eof())
       { }
 
+      /**
+       *  @return  The underlying FILE*.
+       *
+       *  This function can be used to access the underlying "C" file pointer.
+       *  Note that there is no way for the library to track what you do
+       *  with the file, so be careful.
+       */
+      std::__c_file* const
+      file() { return this->_M_file; }
+
     protected:
       int_type
       syncgetc();