2003-07-04 Paolo Carlini <pcarlini@unitus.it>

	Revert the fix for libstdc++/11378.

From-SVN: r68922

libstdc++-v3/ChangeLog

 2003-07-04  Paolo Carlini  <pcarlini@unitus.it>
 
+	Revert the fix for libstdc++/11378.
+
+2003-07-04  Paolo Carlini  <pcarlini@unitus.it>
+
 	PR libstdc++/11378
 	* include/std/std_fstream.h (xsputn): In the unbuffered case,
 	provided always_noconv(), issue directly _M_file.xsputn.

libstdc++-v3/include/std/std_fstream.h

@@ -397,21 +397,9 @@ namespace std
       virtual streamsize
       xsputn(const char_type* __s, streamsize __n)
       {
-	streamsize __ret = 0;
- 
-	const bool __testout = this->_M_mode & ios_base::out;
-	if (__testout && !_M_reading && this->_M_buf_size == 1
-	    && __check_facet(_M_codecvt).always_noconv())
-	  {
-	    __ret = _M_file.xsputn(reinterpret_cast<const char*>(__s), __n);
-	    if (__ret == __n)
-	      _M_writing = true;
-	  }
-	else
-	  __ret = __streambuf_type::xsputn(__s, __n);
-      
-	return __ret;
-      }          
+	_M_destroy_pback();
+	return __streambuf_type::xsputn(__s, __n);
+      }
 
       /**
        *  @if maint

libstdc++-v3/testsuite/performance/filebuf_unbuf_sputn.cc

-// 2003-07-04  Petur Runolfsson <peturr02@ru.is>
-//
-// Copyright (C) 2003 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
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 2, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING.  If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction.  Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License.  This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-#include <cstdio>
-#include <cstring>
-#include <fstream>
-#include <iostream>
-
-// Contributed as part of libstdc++/11378.
-int main(int argc, char** argv)
-{
-  using namespace std;
-  
-  if (argc < 3)
-    {
-      cerr << "Usage: " << argv[0] << " type iters [chunksize]\n";
-      return -1;
-    }
-
-  enum { type_stdio, type_iostream } type;
-  
-  if (!strcmp(argv[1], "stdio"))
-    type = type_stdio;
-  else if (!strcmp(argv[1], "iostream"))
-    type = type_iostream;
-  else
-    {
-      cerr << "Type must be one of {stdio, iostream}\n";
-      return -1;
-    }
-
-  int iters = atoi(argv[2]);
-  if (iters < 1)
-    {
-      cerr << "Iters must be an positive integer\n";
-      return -1;
-    }
-  
-  int chunksize = 1;
-  if (argc > 3)
-    chunksize = atoi(argv[3]);
-  
-  if (iters < 1)
-    {
-      cerr << "Chunksize must be an positive integer\n";
-      return -1;
-    }
-  
-  char* chunk = 0;
-  if (chunksize > 1)
-    {
-      chunk = new char[chunksize];
-      memset(chunk, 'a', chunksize);
-    }
-
-  switch (type)
-    {
-    case type_stdio:
-      {
-	FILE* f = fopen("tmp", "w");
-	setvbuf(f, 0, _IONBF, 0);
-	
-	if (chunksize > 1)
-	  {
-	    for (int i = 0; i < iters; ++i)
-	      fwrite_unlocked(chunk, 1, chunksize, f);
-	  }
-	else
-	  {
-	    for (int i = 0; i < iters; ++i)
-	      putc_unlocked('a', f);
-	  }
-	
-	fclose(f);
-	break;
-      }
-
-    case type_iostream:
-      {
-	filebuf f;
-	f.pubsetbuf(0, 0);
-	
-	f.open("tmp", ios_base::out);
-
-	if (chunksize > 1)
-	  {
-	    for (int i = 0; i < iters; ++i)
-	      f.sputn(chunk, chunksize);
-	  }
-	else
-	  {
-	    for (int i = 0; i < iters; ++i)
-	      f.sputc('a');
-	  }
-	
-	f.close();
-	
-	break;
-      }
-    }
-
-  delete[] chunk;
-  return 0;
-}