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.

16 files changed, 589 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/all.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all.cc
new file mode 100644
index 000000000..70661e913
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all.cc
@@ -0,0 +1,20 @@
+// { dg-do compile }
+
+// Copyright (C) 2007, 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_c++200x_compatibility.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_c++200x_compatibility.cc
new file mode 100644
index 000000000..40889d932
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_c++200x_compatibility.cc
@@ -0,0 +1,24 @@
+// { dg-do compile }
+// { dg-options "-Wc++0x-compat -Werror" }
+
+// Copyright (C) 2007, 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/>.
+
+// Make sure all the includes can be compiled with -Wc++0x-compat
+// libstdc++/30571
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_no_exceptions.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_no_exceptions.cc
new file mode 100644
index 000000000..c645d3f7d
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_no_exceptions.cc
@@ -0,0 +1,21 @@
+// { dg-do compile }
+// { dg-options "-fno-exceptions" }
+
+// Copyright (C) 2007, 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_no_rtti.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_no_rtti.cc
new file mode 100644
index 000000000..99585999e
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_no_rtti.cc
@@ -0,0 +1,21 @@
+// { dg-do compile }
+// { dg-options "-fno-rtti" }
+
+// 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_pedantic_errors.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_pedantic_errors.cc
new file mode 100644
index 000000000..4faa5af3d
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/all_pedantic_errors.cc
@@ -0,0 +1,21 @@
+// { dg-do compile }
+// { dg-options "-pedantic-errors" }
+
+// Copyright (C) 2007, 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/operator_names.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/operator_names.cc
new file mode 100644
index 000000000..00e8bdaea
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/operator_names.cc
@@ -0,0 +1,30 @@
+// { dg-do compile }
+// { dg-options "-fno-operator-names" }
+
+// 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/>.
+
+// libstdc++/47662
+
+// Avoid using PCH
+#include <cerrno>
+#include <bits/stdc++.h>
+#include <bits/stdtr1c++.h>
+#include <bits/extc++.h>
+
+int or, xor, and;
+
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++.cc
new file mode 100644
index 000000000..3d5db7a32
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++.cc
@@ -0,0 +1,49 @@
+// FreeBSD wants warning clean system headers:
+// { dg-options "-Wall -Wsystem-headers" { target *-*-freebsd* } }
+// { dg-do compile }
+// 1999-05-12 bkoz
+
+// Copyright (C) 1999, 2007, 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/>.
+
+// 17.4.1.2 Headers
+
+#include <bits/stdc++.h>
+
+// "C" compatibility headers
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <float.h>
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#ifdef _GLIBCXX_HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef _GLIBCXX_HAVE_WCTYPE_H
+#include <wctype.h>
+#endif
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++_assert_neg.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++_assert_neg.cc
new file mode 100644
index 000000000..829dee1a2
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++_assert_neg.cc
@@ -0,0 +1,35 @@
+// { dg-do compile }
+// { dg-options "-D_GLIBCXX_NO_ASSERT" }
+// NB: This is done to force any generated and possibly included PCH
+// to be invalid, and also to remove cassert from the include set.
+
+// 2005-05-24 bkoz
+
+// Copyright (C) 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/>.
+
+// 17.4.1.2 Headers
+
+// This file tests that assert is not included in any of the standard
+// includes by accident.
+
+#include <bits/stdc++.h>
+
+void foo()
+{
+ assert(true);  // { dg-error "not declared" "" { target *-*-* } } 
+}
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++_multiple_inclusion.cc b/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++_multiple_inclusion.cc
new file mode 100644
index 000000000..e900fa75e
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++1998/stdc++_multiple_inclusion.cc
@@ -0,0 +1,75 @@
+// FreeBSD wants warning clean system headers:
+// { dg-options "-Wall -Wsystem-headers" { target *-*-freebsd* } }
+// { dg-do compile }
+// 1999-05-12 bkoz
+
+// Copyright (C) 1999, 2007, 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/>.
+
+// 17.4.1.2 Headers
+
+#include <bits/stdc++.h>
+
+// "C" compatibility headers
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <float.h>
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#ifdef _GLIBCXX_HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef _GLIBCXX_HAVE_WCTYPE_H
+#include <wctype.h>
+#endif
+
+#include <bits/stdc++.h>
+
+// "C" compatibility headers
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <float.h>
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#ifdef _GLIBCXX_HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef _GLIBCXX_HAVE_WCTYPE_H
+#include <wctype.h>
+#endif
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/42319.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/42319.cc
new file mode 100644
index 000000000..729fca1cb
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/42319.cc
@@ -0,0 +1,22 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 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/>.
+
+// libstdc++/42319
+#include <bits/char_traits.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_no_exceptions.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_no_exceptions.cc
new file mode 100644
index 000000000..5650e3a51
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_no_exceptions.cc
@@ -0,0 +1,21 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x -fno-exceptions" }
+
+// Copyright (C) 2007, 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_no_rtti.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_no_rtti.cc
new file mode 100644
index 000000000..2ce83ed0e
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_no_rtti.cc
@@ -0,0 +1,21 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x -fno-rtti" }
+
+// 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_pedantic_errors.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_pedantic_errors.cc
new file mode 100644
index 000000000..08f8fd807
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/all_pedantic_errors.cc
@@ -0,0 +1,21 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x -pedantic-errors" }
+
+// Copyright (C) 2007, 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/>.
+
+#include <bits/extc++.h>
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/operator_names.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/operator_names.cc
new file mode 100644
index 000000000..9ad40f0f0
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/operator_names.cc
@@ -0,0 +1,30 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x -fno-operator-names" }
+
+// 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/>.
+
+// libstdc++/47662
+
+// Avoid using PCH
+#include <cerrno>
+#include <bits/stdc++.h>
+#include <bits/stdtr1c++.h>
+#include <bits/extc++.h>
+
+int or, xor, and;
+
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/stdc++.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/stdc++.cc
new file mode 100644
index 000000000..357373a0a
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/stdc++.cc
@@ -0,0 +1,67 @@
+// FreeBSD wants warning clean system headers:
+// { dg-options "-Wall -Wsystem-headers" { target *-*-freebsd* } }
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2007, 2008, 2009, 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/>.
+
+// 17.4.1.2 Headers
+
+#include <bits/stdc++.h>
+
+// "C" compatibility headers
+#include <assert.h>
+#ifdef _GLIBCXX_HAVE_COMPLEX_H
+#include <complex.h>
+#endif
+#include <ctype.h>
+#include <errno.h>
+#ifdef _GLIBCXX_HAVE_FENV_H
+#include <fenv.h>
+#endif
+#include <float.h>
+#ifdef _GLIBCXX_HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#ifdef _GLIBCXX_HAVE_STDBOOL_H
+#include <stdbool.h>
+#endif
+#include <stddef.h>
+#ifdef _GLIBCXX_HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef _GLIBCXX_HAVE_TGMATH_H
+#include <tgmath.h>
+#endif
+#include <time.h>
+#ifdef _GLIBCXX_HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef _GLIBCXX_HAVE_WCTYPE_H
+#include <wctype.h>
+#endif
diff --git a/libstdc++-v3/testsuite/17_intro/headers/c++200x/stdc++_multiple_inclusion.cc b/libstdc++-v3/testsuite/17_intro/headers/c++200x/stdc++_multiple_inclusion.cc
new file mode 100644
index 000000000..89c6cdd43
--- /dev/null
+++ b/libstdc++-v3/testsuite/17_intro/headers/c++200x/stdc++_multiple_inclusion.cc
@@ -0,0 +1,111 @@
+// FreeBSD wants warning clean system headers:
+// { dg-options "-Wall -Wsystem-headers" { target *-*-freebsd* } }
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2007, 2008, 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/>.
+
+// 17.4.1.2 Headers
+
+#include <bits/stdc++.h>
+
+// "C" compatibility headers
+#include <assert.h>
+#ifdef _GLIBCXX_HAVE_COMPLEX_H
+#include <complex.h>
+#endif
+#include <ctype.h>
+#include <errno.h>
+#ifdef _GLIBCXX_HAVE_FENV_H
+#include <fenv.h>
+#endif
+#include <float.h>
+#ifdef _GLIBCXX_HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#ifdef _GLIBCXX_HAVE_STDBOOL_H
+#include <stdbool.h>
+#endif
+#include <stddef.h>
+#ifdef _GLIBCXX_HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef _GLIBCXX_HAVE_TGMATH_H
+#include <tgmath.h>
+#endif
+#include <time.h>
+#ifdef _GLIBCXX_HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef _GLIBCXX_HAVE_WCTYPE_H
+#include <wctype.h>
+#endif
+
+#include <bits/stdc++.h>
+
+// "C" compatibility headers
+#include <assert.h>
+#ifdef _GLIBCXX_HAVE_COMPLEX_H
+#include <complex.h>
+#endif
+#include <ctype.h>
+#include <errno.h>
+#ifdef _GLIBCXX_HAVE_FENV_H
+#include <fenv.h>
+#endif
+#include <float.h>
+#ifdef _GLIBCXX_HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+#include <iso646.h>
+#include <limits.h>
+#include <locale.h>
+#include <math.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#ifdef _GLIBCXX_HAVE_STDBOOL_H
+#include <stdbool.h>
+#endif
+#include <stddef.h>
+#ifdef _GLIBCXX_HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef _GLIBCXX_HAVE_TGMATH_H
+#include <tgmath.h>
+#endif
+#include <time.h>
+#ifdef _GLIBCXX_HAVE_WCHAR_H
+#include <wchar.h>
+#endif
+#ifdef _GLIBCXX_HAVE_WCTYPE_H
+#include <wctype.h>
+#endif