Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / util / hash_fn / dna_str_limit.hpp

diff --git a/libstdc++-v3/testsuite/util/hash_fn/dna_str_limit.hpp b/libstdc++-v3/testsuite/util/hash_fn/dna_str_limit.hpp
new file mode 100644 (file)
index 0000000..e81804e
--- /dev/null
+++ b/libstdc++-v3/testsuite/util/hash_fn/dna_str_limit.hpp
@@ -0,0 +1,62 @@
+// -*- 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 dna_str_limit.hpp
+ * Contains a function for finding the numer of characters
+ *    to access in a DNA string.
+ */
+
+#ifndef PB_DS_DNA_STR_LIMIT_HPP
+#define PB_DS_DNA_STR_LIMIT_HPP
+
+#include <string>
+
+namespace __gnu_pbds
+{
+  namespace test
+  {
+    size_t
+    dna_str_limit(size_t size)
+    {
+      size_t ret = 1;
+      size_t calc_size = 4;
+      while (calc_size < size)
+       {
+         ++ret;
+         calc_size = calc_size << 2;
+       }
+      return ret;
+    }
+  } // namespace test
+} // namespace __gnu_pbds
+
+#endif // #ifndef PB_DS_DNA_STR_LIMIT_HPP