Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / include / ext / pb_ds / detail / standard_policies.hpp

diff --git a/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp b/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp
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+++ b/libstdc++-v3/include/ext/pb_ds/detail/standard_policies.hpp
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+// -*- C++ -*-
+
+// Copyright (C) 2005, 2006, 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  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 standard_policies.hpp
+ * Contains standard policies for containers.
+ */
+
+#ifndef PB_DS_STANDARD_POLICIES_HPP
+#define PB_DS_STANDARD_POLICIES_HPP
+
+#include <memory>
+#include <ext/pb_ds/hash_policy.hpp>
+#include <ext/pb_ds/list_update_policy.hpp>
+#include <ext/pb_ds/tree_policy.hpp>
+#include <ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp>
+#include <ext/pb_ds/trie_policy.hpp>
+#include <ext/pb_ds/tag_and_trait.hpp>
+#include <tr1/functional>
+
+namespace __gnu_pbds
+{
+  namespace detail
+  {
+    template<typename Key>
+    struct default_hash_fn
+    {
+      typedef std::tr1::hash<Key> type;
+    };
+
+    template<typename Key>
+    struct default_eq_fn
+    {
+      typedef std::equal_to<Key> type;
+    };
+
+    enum
+      {
+       default_store_hash = false
+      };
+
+    struct default_comb_hash_fn
+    {
+      typedef __gnu_pbds::direct_mask_range_hashing<> type;
+    };
+
+    template<typename Comb_Hash_Fn>
+    struct default_resize_policy
+    {
+    private:
+      typedef typename Comb_Hash_Fn::size_type size_type;
+
+      typedef __gnu_pbds::direct_mask_range_hashing<size_type> default_fn;
+      typedef is_same<default_fn, Comb_Hash_Fn> same_type;
+      typedef __gnu_pbds::hash_exponential_size_policy<size_type> iftrue;
+      typedef __gnu_pbds::hash_prime_size_policy iffalse;
+      typedef __conditional_type<same_type::value, iftrue, iffalse> cond_type;
+      typedef typename cond_type::__type size_policy_type;
+
+      typedef __gnu_pbds::hash_load_check_resize_trigger<false, size_type> trigger;
+
+    public:
+      typedef __gnu_pbds::hash_standard_resize_policy<size_policy_type, trigger, false, size_type> type;
+    };
+
+    struct default_update_policy
+    {
+      typedef __gnu_pbds::move_to_front_lu_policy<> type;
+    };
+
+    template<typename Comb_Probe_Fn>
+    struct default_probe_fn
+    {
+    private:
+      typedef typename Comb_Probe_Fn::size_type size_type;
+
+      typedef __gnu_pbds::direct_mask_range_hashing<size_type> default_fn;
+      typedef is_same<default_fn, Comb_Probe_Fn> same_type;
+      typedef __gnu_pbds::linear_probe_fn<size_type> iftrue;
+      typedef __gnu_pbds::quadratic_probe_fn<size_type> iffalse;
+      typedef __conditional_type<same_type::value, iftrue, iffalse> cond_type;
+
+    public:
+      typedef typename cond_type::__type type;
+    };
+
+    template<typename Key>
+    struct default_trie_e_access_traits;
+
+    template<typename Char, class Char_Traits>
+    struct default_trie_e_access_traits<std::basic_string<Char, Char_Traits, std::allocator<char> > >
+    {
+    private:
+      typedef std::basic_string<Char, Char_Traits, std::allocator<char> > string_type;
+
+    public:
+      typedef __gnu_pbds::string_trie_e_access_traits<string_type> type;
+    };
+
+  } // namespace detail
+} // namespace __gnu_pbds
+
+#endif // #ifndef PB_DS_STANDARD_POLICIES_HPP
+