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diff --git a/libstdc++-v3/testsuite/21_strings/char_traits/requirements/char/1.cc b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/char/1.cc
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+++ b/libstdc++-v3/testsuite/21_strings/char_traits/requirements/char/1.cc
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+// 1999-06-03 bkoz
+
+// Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2009
+// 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 3, 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 COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 21.1.1 Characher traits requirements
+
+#include <string>
+#include <testsuite_hooks.h>
+
+void test01(void)
+{
+  bool test __attribute__((unused)) = true;
+  const std::string str_01("zuma beach");
+  const std::string str_02("montara and ocean beach");
+ 
+  // 21.1.1 character traits requirements
+
+  // Key for decoding what function signatures really mean:
+  // X        == char_traits<_CharT>
+  // [c,d]    == _CharT
+  // [p,q]    == const _CharT*
+  // s        == _CharT*
+  // [n,i,j]  == size_t
+  // f        == X::int_type
+  // pos      == X::pos_type
+  // state    == X::state_type
+
+  // void X::assign(char c, char d)
+  // assigns c = d;
+  char c1 = 'z';
+  char c2 = 'u';
+  VERIFY( c1 != c2 );
+  std::char_traits<char>::assign(c1,c2);
+  VERIFY( c1 == 'u' );
+
+  // char* X::move(char* s, const char* p, size_t n)
+  // for each i in [0,n) performs X::assign(s[i], p[i]). Copies
+  // correctly even where p is in [s, s + n), and yields s.   
+  char array1[] = {'z', 'u', 'm', 'a', ' ', 'b', 'e', 'a', 'c', 'h',  0};
+  const char str_lit1[] = "montara and ocean beach";
+  const char str_lit2[] = "boracay, philippines";
+  const int len1 = sizeof(str_lit1)/sizeof(char);
+  const int len2 = sizeof(str_lit2)/sizeof(char);
+  char array2[len1 + len2 - 1]; // two terminating chars
+  std::char_traits<char>::copy(array2, str_lit2, len2);
+
+  VERIFY( str_lit1[0] == 'm' );
+  c1 = array2[0];
+  c2 = str_lit1[0];
+  char c3 = array2[1];
+  char c4 = str_lit1[1];
+  std::char_traits<char>::move(array2, str_lit1, 0);
+  VERIFY( array2[0] == c1 );
+  VERIFY( str_lit1[0] == c2 );
+  std::char_traits<char>::move(array2, str_lit1, 1);
+  VERIFY( array2[0] == c2 );
+  VERIFY( str_lit1[0] == c2 );
+  VERIFY( array2[1] == c3 );
+  VERIFY( str_lit1[1] == c4 );
+  std::char_traits<char>::move(array2, str_lit1, 2);
+  VERIFY( array2[0] == c2 );
+  VERIFY( str_lit1[0] == c2 );
+  VERIFY( array2[1] == c4 );
+  VERIFY( str_lit1[1] == c4 );
+ 
+  char* pc1 = array1 + 1;
+  c1 = pc1[0];
+  c2 = array1[0];
+  VERIFY( c1 != c2 );
+  char* pc2 = std::char_traits<char>::move(array1, pc1, 0);
+  c3 = pc1[0];
+  c4 = array1[0];
+  VERIFY( c1 == c3 );
+  VERIFY( c2 == c4 );
+  VERIFY( pc2 == array1 );
+
+  c1 = pc1[0];
+  c2 = array1[0];
+  char* pc3 = pc1;
+  pc2 = std::char_traits<char>::move(array1, pc1, 10);
+  c3 = pc1[0];
+  c4 = array1[0];
+  VERIFY( c1 != c3 ); // underlying char array changed.
+  VERIFY( c4 != c3 );
+  VERIFY( pc2 == array1 );
+  VERIFY( pc3 == pc1 ); // but pointers o-tay
+  c1 = *(str_01.data());
+  c2 = array1[0];
+  VERIFY( c1 != c2 );
+}
+
+int main()
+{ 
+  test01();
+  return 0;
+}