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.

1 files changed, 119 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/ext/pb_ds/example/basic_map.cc b/libstdc++-v3/testsuite/ext/pb_ds/example/basic_map.cc
new file mode 100644
index 000000000..bc629d8d7
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/pb_ds/example/basic_map.cc
@@ -0,0 +1,119 @@
+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 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/>.
+
+
+// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
+
+// Permission to use, copy, modify, sell, and distribute this software
+// is hereby granted without fee, provided that the above copyright
+// notice appears in all copies, and that both that copyright notice
+// and this permission notice appear in supporting documentation. None
+// of the above authors, nor IBM Haifa Research Laboratories, make any
+// representation about the suitability of this software for any
+// purpose. It is provided "as is" without express or implied
+// warranty.
+
+/**
+ * @file basic_map_example.cpp
+ * A basic example showing how to use maps.
+ */
+
+/**
+ * This example shows how to use "maps". It defines a
+ * function performing a sequence of operations on
+ * a generic container. It then calls this function with some containers.
+ */
+
+#include <iostream>
+#include <cassert>
+#include <ext/pb_ds/assoc_container.hpp>
+
+using namespace std;
+using namespace __gnu_pbds;
+
+// The following function performs a sequence of operations on an
+// associative container object mapping integers to characters.
+template<class Cntnr>
+void
+some_op_sequence(Cntnr& r_c)
+{
+  assert(r_c.empty());
+  assert(r_c.size() == 0);
+
+  r_c.insert(make_pair(1, 'a'));
+
+  r_c[2] = 'b';
+
+  assert(!r_c.empty());
+  assert(r_c.size() == 2);
+
+  cout << "Key 1 is mapped to " << r_c[1] << endl;
+  cout << "Key 2 is mapped to " << r_c[2] << endl;
+
+  cout << endl << "All value types in the container:" << endl;
+
+  typedef typename Cntnr::const_iterator const_iterator;
+  for (const_iterator it = r_c.begin(); it != r_c.end(); ++it)
+    cout << it->first << " -> " << it->second << endl;
+  cout << endl;
+
+  r_c.clear();
+
+  assert(r_c.empty());
+  assert(r_c.size() == 0);
+}
+
+int main()
+{
+  {
+    // Perform operations on a collision-chaining hash map.
+    cc_hash_table<int, char> c;
+    some_op_sequence(c);
+  }
+
+  {
+    // Perform operations on a general-probing hash map.
+    gp_hash_table<int, char> c;
+    some_op_sequence(c);
+  }
+
+  {
+    // Perform operations on a red-black tree map.
+    tree<int, char> c;
+    some_op_sequence(c);
+  }
+
+  {
+    // Perform operations on a splay tree map.
+    tree<int, char, less<int>, splay_tree_tag> c;
+    some_op_sequence(c);
+  }
+
+  {
+    // Perform operations on an ov tree map.
+    tree<int, char, less<int>, ov_tree_tag> c;
+    some_op_sequence(c);
+  }
+
+  {
+    // Perform operations on a list-update map.
+    list_update<int, char> c;
+    some_op_sequence(c);
+  }
+}