obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

12 files changed, 677 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_01.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_01.cc
new file mode 100644
index 000000000..4a7161a79
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_01.cc
@@ -0,0 +1,63 @@
+// { dg-options "-std=c++0x" }
+
+//
+// 2010-06-11  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests BRE against a std::string target.
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("\\(a\\).*", std::regex::basic);
+	std::string target("aaba");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+	VERIFY( m[1].first == target.begin() );
+	VERIFY( m[1].second == target.begin()+1 );
+	VERIFY( m[1].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_00_03.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_00_03.cc
new file mode 100644
index 000000000..6c0fdd76f
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_00_03.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=c++0x" }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests BRE against a std::string target, exercising range {0,3}
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("a\\{0,3\\}", std::regex::basic);
+	std::string target("aa");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_01_03.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_01_03.cc
new file mode 100644
index 000000000..3439b544b
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_01_03.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=c++0x" }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests BRE against a std::string target, exercising range {1,3}
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("a\\{1,3\\}", std::regex::basic);
+	std::string target("aa");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_02_03.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_02_03.cc
new file mode 100644
index 000000000..dfd00a0f3
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/basic/string_range_02_03.cc
@@ -0,0 +1,61 @@
+// { dg-options "-std=c++0x" }
+// { dg-do run { xfail *-*-* } }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests BRE against a std::string target, exercising range {2,3}
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("a\\{2,3\\}", std::regex::basic);
+	std::string target("aa");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/cstring_plus.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/cstring_plus.cc
new file mode 100644
index 000000000..ad0f57e22
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/cstring_plus.cc
@@ -0,0 +1,65 @@
+// { dg-options "-std=c++0x" }
+// { dg-do run { xfail *-*-* } }
+
+//
+// 2010-06-21  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests ERE against a C-string target, plus-sign match.
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("(a+)", std::regex::extended);
+	const char target[] = "aa";
+	std::cmatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( re.mark_count() == 1 );
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target );
+	VERIFY( m.prefix().second == target );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target+sizeof(target) );
+	VERIFY( m.suffix().second == target+sizeof(target) );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target );
+	VERIFY( m[0].second == target+sizeof(target) );
+	VERIFY( m[0].matched == true );
+	VERIFY( m[1].first == target );
+	VERIFY( m[1].second == target+sizeof(target) );
+	VERIFY( m[1].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/cstring_questionmark.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/cstring_questionmark.cc
new file mode 100644
index 000000000..21abea456
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/cstring_questionmark.cc
@@ -0,0 +1,65 @@
+// { dg-options "-std=c++0x" }
+// { dg-do run { xfail *-*-* } }
+
+//
+// 2010-06-21  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests ERE against a C-string target, question-mark match.
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("(aa?)", std::regex::extended);
+	char target[] = "a";
+	std::cmatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( re.mark_count() == 1 );
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target );
+	VERIFY( m.prefix().second == target );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target+sizeof(target) );
+	VERIFY( m.suffix().second == target+sizeof(target) );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target );
+	VERIFY( m[0].second == target+sizeof(target) );
+	VERIFY( m[0].matched == true );
+	VERIFY( m[1].first == target );
+	VERIFY( m[1].second == target+sizeof(target) );
+	VERIFY( m[1].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_any.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_any.cc
new file mode 100644
index 000000000..8d3716b1e
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_any.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=c++0x" }
+
+//
+// 2010-06-11  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests ERE against a std::string target.
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re(".*", std::regex::extended);
+	std::string target("aaba");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_00_03.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_00_03.cc
new file mode 100644
index 000000000..a0a2e1fa9
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_00_03.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=c++0x" }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests ERE against a std::string target, exercising range {0,3}
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("a{0,3}", std::regex::extended);
+	std::string target("aa");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_01_03.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_01_03.cc
new file mode 100644
index 000000000..b50e07645
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_01_03.cc
@@ -0,0 +1,60 @@
+// { dg-options "-std=c++0x" }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests ERE against a std::string target, exercising range {1,3}
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("a{1,3}", std::regex::extended);
+	std::string target("aa");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_02_03.cc b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_02_03.cc
new file mode 100644
index 000000000..ca322a8d4
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/02_match/extended/string_range_02_03.cc
@@ -0,0 +1,61 @@
+// { dg-options "-std=c++0x" }
+// { dg-do run { xfail *-*-* } }
+
+//
+// 2010-06-16  Stephen M. Webb <stephen.webb@bregmasoft.ca>
+//
+// Copyright (C) 2010 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/>.
+
+// 28.11.2 regex_match
+// Tests ERE against a std::string target, exercising range {2,3}
+
+#include <regex>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+	std::regex  re("a{2,3}", std::regex::extended);
+	std::string target("aa");
+	std::smatch m;
+
+	VERIFY( std::regex_match(target, m, re) );
+
+	VERIFY( m.size()  == re.mark_count()+1 );
+	VERIFY( m.empty() == false );
+	VERIFY( m.prefix().first == target.begin() );
+	VERIFY( m.prefix().second == target.begin() );
+	VERIFY( m.prefix().matched == false );
+	VERIFY( m.suffix().first == target.end() );
+	VERIFY( m.suffix().second == target.end() );
+	VERIFY( m.suffix().matched == false );
+	VERIFY( m[0].first == target.begin() );
+	VERIFY( m[0].second == target.end() );
+	VERIFY( m[0].matched == true );
+}
+
+
+int
+main()
+{ 
+  test01();
+  return 0;
+}
+
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/regex_replace/char/51711.cc b/libstdc++-v3/testsuite/28_regex/algorithms/regex_replace/char/51711.cc
new file mode 100644
index 000000000..5532713ce
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/regex_replace/char/51711.cc
@@ -0,0 +1,31 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2011 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/>.
+//
+
+#include <regex>
+#include <string>
+
+// libstdc++/51711
+void test01()
+{
+  std::string toProcess("Bug\r\n");
+  std::string result __attribute__((unused))
+    = std::regex_replace(toProcess, std::regex("\\r"), std::string("\\r"));
+}
diff --git a/libstdc++-v3/testsuite/28_regex/algorithms/regex_replace/wchar_t/51711.cc b/libstdc++-v3/testsuite/28_regex/algorithms/regex_replace/wchar_t/51711.cc
new file mode 100644
index 000000000..66b74e458
--- /dev/null
+++ b/libstdc++-v3/testsuite/28_regex/algorithms/regex_replace/wchar_t/51711.cc
@@ -0,0 +1,31 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2011 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/>.
+//
+
+#include <regex>
+#include <string>
+
+// libstdc++/51711
+void test01()
+{
+  std::wstring toProcess(L"Bug\r\n");
+  std::wstring result __attribute__((unused))
+    = std::regex_replace(toProcess, std::wregex(L"\\r"), std::wstring(L"\\r"));
+}