fstream.tcc (basic_filebuf::basic_filebuf(fd)): Use it.

2000-06-23  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>

	* bits/fstream.tcc (basic_filebuf::basic_filebuf(fd)): Use it.
	(basic_filebuf::close): Use it.
	* bits/std_fstream.h (basic_filebuf): Remove default arguments for
	filebuf ctor.
	(basic_filebuf): Add _M_fileno_based data member.
        As reported by brent verner <brent@rcfile.org>
	* testsuite/27_io/filebuf_members.cc: New file.
	* testsuite/27_io/filebuf_members-1.tst: New file.

From-SVN: r34673

libstdc++-v3/ChangeLog

 2000-06-23  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>
 
+	* bits/fstream.tcc (basic_filebuf::basic_filebuf(fd)): Use it.
+	(basic_filebuf::close): Use it.
+	* bits/std_fstream.h (basic_filebuf): Remove default arguments for
+	filebuf ctor.
+	(basic_filebuf): Add _M_fileno_based data member.
+        As reported by brent verner <brent@rcfile.org> 
+	* testsuite/27_io/filebuf_members.cc: New file.
+	* testsuite/27_io/filebuf_members-1.tst: New file.
+
 	* bits/std_fstream.h: Formatting tweaks.
 	* testsuite/27_io/ofstream_members.cc: New file.
 	* testsuite/27_io/ofstream_members-1.tst: New file.

libstdc++-v3/bits/fstream.tcc

@@ -55,19 +55,20 @@ namespace std
   template<typename _CharT, typename _Traits>
     basic_filebuf<_CharT, _Traits>::
     basic_filebuf() 
-    : __streambuf_type(), _M_file(NULL), _M_last_overflowed(false), 
-    _M_state_cur(), _M_state_beg() 
+    : __streambuf_type(), _M_file(NULL), _M_state_cur(), _M_state_beg(), 
+    _M_last_overflowed(false), _M_fileno_based(false)
     { _M_fcvt = &use_facet<__codecvt_type>(this->getloc()); }
 
 
   template<typename _CharT, typename _Traits>
     basic_filebuf<_CharT, _Traits>::
     basic_filebuf(int __fd, const char* /*__name*/, ios_base::openmode __mode)
-    : __streambuf_type(), _M_last_overflowed(false),
-    _M_state_cur(), _M_state_beg()
+    : __streambuf_type(), _M_state_cur(), _M_state_beg(),
+    _M_last_overflowed(false)
     {
       _M_fcvt = &use_facet<__codecvt_type>(this->getloc());
       _M_init_filebuf();
+      _M_fileno_based = true;
       _M_file->sys_open(__fd, __mode);
       if (this->is_open() && _M_buf_size)
 	{
@@ -142,8 +143,14 @@ namespace std
 	      _M_really_overflow(traits_type::eof());
 	    }
 #endif
-	  
-	  if (_M_file->close())
+
+	  bool __testclosed;
+	  if (_M_fileno_based)
+	    __testclosed = _M_file->sys_close();
+	  else
+	    __testclosed = _M_file->close();
+
+	  if (__testclosed)
 	    {
 	      _M_mode = ios_base::openmode(0);
 	      if (_M_buf_size)

libstdc++-v3/bits/std_fstream.h

@@ -66,19 +66,19 @@ namespace std {
     private:
       // Data Members:
       __file_type* 		_M_file;
-      bool			_M_last_overflowed;  // XXX Needed?
       __state_type		_M_state_cur;// Current state type for codecvt.
       __state_type 		_M_state_beg; 	
       const __codecvt_type*	_M_fcvt;       // Cached value from use_facet.
       __mutext_type           	_M_lock;
-
+      bool			_M_last_overflowed;  // XXX Needed?
+      bool			_M_fileno_based; // Open/closed via filenos.
+ 
     public:
       // Constructors/destructor:
       basic_filebuf();
 
       // Non-standard ctor:
-      basic_filebuf(int __fd, const char* __name = "unknown", 
-		    ios_base::openmode __mode = ios_base::in | ios_base::out);
+      basic_filebuf(int __fd, const char* __name, ios_base::openmode __mode);
 
       virtual 
       ~basic_filebuf()