Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / util / performance / time / elapsed_timer.cc

diff --git a/libstdc++-v3/testsuite/util/performance/time/elapsed_timer.cc b/libstdc++-v3/testsuite/util/performance/time/elapsed_timer.cc
new file mode 100644 (file)
index 0000000..6b46402
--- /dev/null
+++ b/libstdc++-v3/testsuite/util/performance/time/elapsed_timer.cc
@@ -0,0 +1,68 @@
+// -*- 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 elapsed_timer.cpp
+ * Contains utilities for tests.
+ */
+
+#include <util/performance/time/elapsed_timer.hpp>
+
+namespace __gnu_pbds
+{
+
+  namespace test
+  {
+
+    elapsed_timer::
+    elapsed_timer()
+    {
+      reset();
+    }
+
+    void
+    elapsed_timer::
+    reset()
+    {
+      m_start = ::clock();
+    }
+
+    elapsed_timer::
+    operator double() const
+    {
+      const clock_t now = ::clock();
+
+      return (((double)now - m_start) / CLOCKS_PER_SEC);
+    }
+
+  } // namespace test
+
+} // namespace __gnu_pbds