diff --git a/libstdc++-v3/testsuite/23_containers/bitset_ctor.cc b/libstdc++-v3/testsuite/23_containers/bitset_ctor.cc
index 922d47028a0..d044777a710 100644
--- a/libstdc++-v3/testsuite/23_containers/bitset_ctor.cc
+++ b/libstdc++-v3/testsuite/23_containers/bitset_ctor.cc
@@ -1,6 +1,6 @@
 // 1999-06-08 bkoz
 
-// Copyright (C) 1999 Free Software Foundation, Inc.
+// Copyright (C) 1999, 2000 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
@@ -65,7 +65,7 @@ bool test01(void)
     std::string str03;
     for (int i = 0; i < sz; ++i)
       str03 += (bit03.test(i) ? '1' : '0');
-    reverse(str03.begin(), str03.end());
+    std::reverse(str03.begin(), str03.end());
     test &= str03 == str02;
   }
   catch(std::invalid_argument& fail) {
diff --git a/libstdc++-v3/testsuite/27_io/filebuf.cc b/libstdc++-v3/testsuite/27_io/filebuf.cc
index 40e6cc6a1ab..a04215e7d22 100644
--- a/libstdc++-v3/testsuite/27_io/filebuf.cc
+++ b/libstdc++-v3/testsuite/27_io/filebuf.cc
@@ -409,7 +409,7 @@ bool test03() {
   strmsz_1 = fb_03.in_avail(); 
   pt_1 = fb_03.pubseekoff(2, std::ios_base::beg);
   strmsz_2 = fb_03.in_avail(); 
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   test &= off_1 > 0;
   c1 = fb_03.snextc(); //current in pointer +1
   test &= c1 == '3';
@@ -423,7 +423,7 @@ bool test03() {
   //cur
   // 27filebuf-3.txt = bd2\n456789:;<=>?...
   pt_2 = fb_03.pubseekoff(2, std::ios_base::cur);
-  off_2 = pt_2._M_position();
+  off_2 = pt_2;
   test &= (off_2 == (off_1 + 2 + 1 + 1));
   c1 = fb_03.snextc(); //current in pointer +1
   test &= c1 == '7';
@@ -437,7 +437,7 @@ bool test03() {
   // 27filebuf-3.txt = "bd2\n456x\n9" 
   pt_2 = fb_03.pubseekoff(0, std::ios_base::end, 
 			  std::ios_base::in|std::ios_base::out);
-  off_1 = pt_2._M_position();
+  off_1 = pt_2;
   test &= off_1 > off_2; //weak, but don't know exactly where it ends
   c3 = fb_03.sputc('\n');
   strmsz_1 = fb_03.sputn("because because because. . .", 28);  
@@ -456,7 +456,7 @@ bool test03() {
   //IN|OUT
   //beg
   pt_1 = fb_03.pubseekoff(78, std::ios_base::beg);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   test &= off_1 > 0;
   c1 = fb_03.snextc(); 		//current in pointer +1
   test &= c1 == ' ';
@@ -464,12 +464,12 @@ bool test03() {
   c3 = fb_03.sgetc();
   fb_03.pubsync(); 		//resets pointers
   pt_2 = fb_03.pubseekpos(pt_1);
-  off_2 = pt_2._M_position();
+  off_2 = pt_2;
   test &= off_1 == off_2;
   c3 = fb_03.snextc(); 		//current in pointer +1
   test &= c2 == c3;
   pt_1 = fb_03.pubseekoff(0, std::ios_base::end);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   test &= off_1 > off_2;
   fb_03.sputn("\nof the wonderful things he does!!\nok", 37);
   fb_03.pubsync();
diff --git a/libstdc++-v3/testsuite/27_io/ostream_inserter_arith.cc b/libstdc++-v3/testsuite/27_io/ostream_inserter_arith.cc
index fd31614774e..519c89cb4c9 100644
--- a/libstdc++-v3/testsuite/27_io/ostream_inserter_arith.cc
+++ b/libstdc++-v3/testsuite/27_io/ostream_inserter_arith.cc
@@ -141,12 +141,24 @@ class testpunct : public numpunct<_CharT>
 {
 public:
   typedef _CharT  char_type;
+  const char_type dchar;
 
   explicit
-  testpunct(char_type decimal_char) : numpunct<_CharT>() 
-    { 
-      _M_init(decimal_char, ',', "");
-    }
+  testpunct(char_type decimal_char) : numpunct<_CharT>(), dchar(decimal_char)
+  { }
+
+protected:
+  char_type 
+  do_decimal_point() const
+  { return dchar; }
+    
+  char_type 
+  do_thousands_sep() const
+  { return ','; }
+
+  string 
+  do_grouping() const
+  { return string(); }
 };
  
 template<typename _CharT>  
diff --git a/libstdc++-v3/testsuite/27_io/stringbuf.cc b/libstdc++-v3/testsuite/27_io/stringbuf.cc
index 5660677b82d..20deda41ea6 100644
--- a/libstdc++-v3/testsuite/27_io/stringbuf.cc
+++ b/libstdc++-v3/testsuite/27_io/stringbuf.cc
@@ -1,6 +1,6 @@
 // 981208 bkoz test functionality of basic_stringbuf for char_type == char
 
-// Copyright (C) 1997-1999 Free Software Foundation, Inc.
+// Copyright (C) 1997-1999, 2000 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
@@ -338,7 +338,7 @@ bool test04() {
   //IN|OUT
   //beg
   pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   test &= off_1 >= 0;
   c1 = strb_01.snextc(); //current in pointer +1
   test &= c1 == 'o';
@@ -347,12 +347,12 @@ bool test04() {
   test &= strb_01.str() == str_tmp;
   //cur
   pt_1 = strb_01.pubseekoff(2, std::ios_base::cur);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   test &= off_1 == -1; // can't seekoff for in and out + cur in sstreams
   pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   pt_2 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);
-  off_2 = pt_2._M_position();
+  off_2 = pt_2;
   test &= off_2 == off_1 + 2;
   c1 = strb_01.snextc(); //current in pointer + 1
   test &= c1 == ' ';
@@ -361,7 +361,7 @@ bool test04() {
   test &= strb_01.str() == str_tmp;
   //end
   pt_2 = strb_01.pubseekoff(2, std::ios_base::end);
-  off_1 = pt_2._M_position();
+  off_1 = pt_2;
   test &= off_1 == -1; // not a valid position
   test &= strb_01.str() == str_tmp;
   // end part two (from the filebuf tests)
@@ -393,10 +393,10 @@ bool test04() {
   //IN|OUT
   //beg
   pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   test &= off_1 >= 0;
   pt_1 = strb_01.pubseekoff(0, std::ios_base::cur, std::ios_base::out);
-  off_1 = pt_1._M_position();
+  off_1 = pt_1;
   c1 = strb_01.snextc(); //current in pointer +1
   test &= c1 == 'o';
   c2 = strb_01.sputc('x');  //test current out pointer
@@ -404,7 +404,7 @@ bool test04() {
   test &= strb_01.str() == str_tmp;
   strb_01.pubsync(); //resets pointers
   pt_2 = strb_01.pubseekpos(pt_1, std::ios_base::in|std::ios_base::out);
-  off_2 = pt_2._M_position();
+  off_2 = pt_2;
   test &= off_1 == off_2;
   c3 = strb_01.snextc(); //current in pointer +1
   test &= c1 == c3;
diff --git a/libstdc++-v3/testsuite/27_io/stringstream.cc b/libstdc++-v3/testsuite/27_io/stringstream.cc
index 5b77c660502..fc72e95f51e 100644
--- a/libstdc++-v3/testsuite/27_io/stringstream.cc
+++ b/libstdc++-v3/testsuite/27_io/stringstream.cc
@@ -44,33 +44,27 @@ std::string test01()
   // Empty string sanity check.
   std::string str01;
   std::string::iterator __i_start = str01.begin();
-  char* __p_start = __i_start.base();
   std::string::iterator __i_end = str01.end();
-  char* __p_end = __i_end.base();
   std::string::size_type len = str01.size();
-  test = __p_start == __p_end;
+  test = __i_start == __i_end;
   test &= len == 0;
 
   // Full string sanity check.
   std::string str02("these golden days, i spend waiting for you:\n 
               Betty Carter on Verve with I'm Yours and You're Mine.");
   __i_start = str02.begin();
-  __p_start = __i_start.base();
   __i_end = str02.end();
-  __p_end = __i_end.base();
   len = str02.size();
-  test &= __p_start != __p_end;
+  test &= __i_start != __i_end;
   test &= len != 0;
  
   // Test an empty ostring stream for sanity.
   std::ostringstream ostrstream0;
   std::string str03 = ostrstream0.str();
   __i_start = str03.begin();
-  __p_start = __i_start.base();
   __i_end = str03.end();
-  __p_end = __i_end.base();
   len = str03.size();
-  test &= __p_start == __p_end;
+  test &= __i_start == __i_end;
   test &= len == 0;
   test &= str01 == str03;