// -*- C++ -*-
-// Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+// Copyright (C) 2005-2022 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 2, or (at your option) any later
+// Foundation; either version 3, or (at your option) any later
// version.
// This library is distributed in the hope that it will be useful, but
// 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 COPYING. If not, write to
-// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
-// MA 02111-1307, USA.
-
-// As a special exception, you may use this file as part of a free
-// software library without restriction. Specifically, if other files
-// instantiate templates or use macros or inline functions from this
-// file, or you compile this file and link it with other files to
-// produce an executable, this file does not by itself cause the
-// resulting executable to be covered by the GNU General Public
-// License. This exception does not however invalidate any other
-// reasons why the executable file might be covered by the GNU General
-// Public License.
+// 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.
/**
* @file ranged_hash_fn.hpp
- * Contains a unified ranged hash functor, allowing the hash tables to deal with
- * a single class for ranged hashing.
+ * Contains a unified ranged hash functor, allowing the hash tables
+ * to deal with a single class for ranged hashing.
*/
#ifndef PB_DS_RANGED_HASH_FN_HPP
#define PB_DS_RANGED_HASH_FN_HPP
-#include <ext/pb_ds/detail/basic_types.hpp>
#include <utility>
+#include <ext/pb_ds/detail/types_traits.hpp>
#include <debug/debug.h>
-namespace pb_ds
+namespace __gnu_pbds
{
namespace detail
{
-
- template<typename Key,
- class Hash_Fn,
- class Allocator,
- class Comb_Hash_Fn,
- bool Store_Hash>
+ /// Primary template.
+ template<typename Key, typename Hash_Fn, typename _Alloc,
+ typename Comb_Hash_Fn, bool Store_Hash>
class ranged_hash_fn;
-#define PB_DS_CLASS_T_DEC \
- template< \
- typename Key, \
- class Hash_Fn, \
- class Allocator, \
- class Comb_Hash_Fn>
-
-#define PB_DS_CLASS_C_DEC \
- ranged_hash_fn< \
- Key, \
- Hash_Fn, \
- Allocator, \
- Comb_Hash_Fn, \
- false>
+#define PB_DS_CLASS_T_DEC \
+ template<typename Key, typename Hash_Fn, typename _Alloc, \
+ typename Comb_Hash_Fn>
+
+#define PB_DS_CLASS_C_DEC \
+ ranged_hash_fn<Key, Hash_Fn, _Alloc, Comb_Hash_Fn, false>
/**
- * Specialization 1- The client supplies a hash function and a ranged
- * hash function, and requests that hash values not be stored.
+ * Specialization 1
+ * The client supplies a hash function and a ranged hash function,
+ * and requests that hash values not be stored.
**/
- template<typename Key,
- class Hash_Fn,
- class Allocator,
- class Comb_Hash_Fn>
- class ranged_hash_fn<
- Key,
- Hash_Fn,
- Allocator,
- Comb_Hash_Fn,
- false> : public Hash_Fn,
- public Comb_Hash_Fn
+ template<typename Key, typename Hash_Fn, typename _Alloc,
+ typename Comb_Hash_Fn>
+ class ranged_hash_fn< Key, Hash_Fn, _Alloc, Comb_Hash_Fn, false>
+ : public Hash_Fn, public Comb_Hash_Fn
{
protected:
- typedef typename Allocator::size_type size_type;
-
+ typedef typename _Alloc::size_type size_type;
typedef Hash_Fn hash_fn_base;
-
typedef Comb_Hash_Fn comb_hash_fn_base;
+ typedef typename rebind_traits<_Alloc, Key>::const_reference
+ key_const_reference;
- typedef typename Allocator::template rebind< Key>::other key_allocator;
-
- typedef typename key_allocator::const_reference const_key_reference;
+ ranged_hash_fn(size_type);
- protected:
- ranged_hash_fn(size_type size);
-
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn);
+ ranged_hash_fn(size_type, const Hash_Fn&);
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn);
+ ranged_hash_fn(size_type, const Hash_Fn&, const Comb_Hash_Fn&);
void
- swap(PB_DS_CLASS_C_DEC& other);
+ swap(PB_DS_CLASS_C_DEC&);
void
- notify_resized(size_type size);
+ notify_resized(size_type);
inline size_type
- operator()(const_key_reference r_key) const;
+ operator()(key_const_reference) const;
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
ranged_hash_fn(size_type size)
- {
- Comb_Hash_Fn::notify_resized(size);
- }
+ { Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn) :
- Hash_Fn(r_hash_fn)
- {
- Comb_Hash_Fn::notify_resized(size);
- }
+ ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn)
+ : Hash_Fn(r_hash_fn)
+ { Comb_Hash_Fn::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn) :
- Hash_Fn(r_hash_fn),
- Comb_Hash_Fn(r_comb_hash_fn)
- {
- comb_hash_fn_base::notify_resized(size);
- }
+ ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn,
+ const Comb_Hash_Fn& r_comb_hash_fn)
+ : Hash_Fn(r_hash_fn), Comb_Hash_Fn(r_comb_hash_fn)
+ { comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
void
swap(PB_DS_CLASS_C_DEC& other)
{
comb_hash_fn_base::swap(other);
-
std::swap((Hash_Fn& )(*this), (Hash_Fn& )other);
}
void
PB_DS_CLASS_C_DEC::
notify_resized(size_type size)
- {
- comb_hash_fn_base::notify_resized(size);
- }
+ { comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::size_type
PB_DS_CLASS_C_DEC::
- operator()(const_key_reference r_key) const
- {
- return (comb_hash_fn_base::operator()(
- hash_fn_base::operator()(r_key)));
- }
+ operator()(key_const_reference r_key) const
+ { return (comb_hash_fn_base::operator()(hash_fn_base::operator()(r_key)));}
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
-#define PB_DS_CLASS_T_DEC \
- template< \
- typename Key, \
- class Hash_Fn, \
- class Allocator, \
- class Comb_Hash_Fn>
-
-#define PB_DS_CLASS_C_DEC \
- ranged_hash_fn< \
- Key, \
- Hash_Fn, \
- Allocator, \
- Comb_Hash_Fn, \
- true>
+#define PB_DS_CLASS_T_DEC \
+ template<typename Key, typename Hash_Fn, typename _Alloc, \
+ typename Comb_Hash_Fn>
+
+#define PB_DS_CLASS_C_DEC \
+ ranged_hash_fn<Key,Hash_Fn, _Alloc, Comb_Hash_Fn, true>
/**
- * Specialization 2- The client supplies a hash function and a ranged
- * hash function, and requests that hash values be stored.
+ * Specialization 2
+ * The client supplies a hash function and a ranged hash function,
+ * and requests that hash values be stored.
**/
- template<typename Key,
- class Hash_Fn,
- class Allocator,
- class Comb_Hash_Fn>
- class ranged_hash_fn<
- Key,
- Hash_Fn,
- Allocator,
- Comb_Hash_Fn,
- true> :
- public Hash_Fn,
- public Comb_Hash_Fn
+ template<typename Key, typename Hash_Fn, typename _Alloc,
+ typename Comb_Hash_Fn>
+ class ranged_hash_fn<Key, Hash_Fn, _Alloc, Comb_Hash_Fn, true>
+ : public Hash_Fn, public Comb_Hash_Fn
{
protected:
- typedef typename Allocator::size_type size_type;
-
- typedef typename comp_hash_< size_type>::comp_hash comp_hash;
-
+ typedef typename _Alloc::size_type size_type;
+ typedef std::pair<size_type, size_type> comp_hash;
typedef Hash_Fn hash_fn_base;
-
typedef Comb_Hash_Fn comb_hash_fn_base;
+ typedef typename rebind_traits<_Alloc, Key>::const_reference
+ key_const_reference;
- typedef typename Allocator::template rebind< Key>::other key_allocator;
-
- typedef typename key_allocator::const_reference const_key_reference;
+ ranged_hash_fn(size_type);
- protected:
- ranged_hash_fn(size_type size);
+ ranged_hash_fn(size_type, const Hash_Fn&);
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn);
-
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn);
+ ranged_hash_fn(size_type, const Hash_Fn&, const Comb_Hash_Fn&);
void
- swap(PB_DS_CLASS_C_DEC& other);
+ swap(PB_DS_CLASS_C_DEC&);
void
- notify_resized(size_type size);
+ notify_resized(size_type);
inline comp_hash
- operator()(const_key_reference r_key) const;
+ operator()(key_const_reference) const;
inline comp_hash
- operator()(const_key_reference r_key, size_type hash) const;
+ operator()(key_const_reference, size_type) const;
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
- ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn) :
- Hash_Fn(r_hash_fn),
- Comb_Hash_Fn(r_comb_hash_fn)
+ ranged_hash_fn(size_type size, const Hash_Fn& r_hash_fn,
+ const Comb_Hash_Fn& r_comb_hash_fn)
+ : Hash_Fn(r_hash_fn), Comb_Hash_Fn(r_comb_hash_fn)
{ comb_hash_fn_base::notify_resized(size); }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_T_DEC
inline typename PB_DS_CLASS_C_DEC::comp_hash
PB_DS_CLASS_C_DEC::
- operator()(const_key_reference r_key) const
+ operator()(key_const_reference r_key) const
{
const size_type hash = hash_fn_base::operator()(r_key);
return std::make_pair(comb_hash_fn_base::operator()(hash), hash);
PB_DS_CLASS_C_DEC::
operator()
#ifdef _GLIBCXX_DEBUG
- (const_key_reference r_key, size_type hash) const
+ (key_const_reference r_key, size_type hash) const
#else
- (const_key_reference /*r_key*/, size_type hash) const
+ (key_const_reference /*r_key*/, size_type hash) const
#endif
{
_GLIBCXX_DEBUG_ASSERT(hash == hash_fn_base::operator()(r_key));
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
-#define PB_DS_CLASS_T_DEC \
- template<typename Key, class Allocator, class Comb_Hash_Fn>
+#define PB_DS_CLASS_T_DEC \
+ template<typename Key, typename _Alloc, typename Comb_Hash_Fn>
-#define PB_DS_CLASS_C_DEC \
- ranged_hash_fn< \
- Key, \
- null_hash_fn, \
- Allocator, \
- Comb_Hash_Fn, \
- false>
+#define PB_DS_CLASS_C_DEC \
+ ranged_hash_fn<Key, null_type, _Alloc, Comb_Hash_Fn, false>
/**
- * Specialization 3- The client does not supply a hash function
- * (by specifying null_hash_fn as the Hash_Fn parameter),
- * and requests that hash values not be stored.
-
- **/
- template<typename Key, class Allocator, class Comb_Hash_Fn>
- class ranged_hash_fn<
- Key,
- null_hash_fn,
- Allocator,
- Comb_Hash_Fn,
- false> :
- public null_hash_fn,
- public Comb_Hash_Fn
+ * Specialization 3
+ * The client does not supply a hash function (by specifying
+ * null_type as the Hash_Fn parameter), and requests that hash
+ * values not be stored.
+ **/
+ template<typename Key, typename _Alloc, typename Comb_Hash_Fn>
+ class ranged_hash_fn<Key, null_type, _Alloc, Comb_Hash_Fn, false>
+ : public Comb_Hash_Fn
{
protected:
-
- typedef typename Allocator::size_type size_type;
-
+ typedef typename _Alloc::size_type size_type;
typedef Comb_Hash_Fn comb_hash_fn_base;
- protected:
- ranged_hash_fn(size_type size);
+ ranged_hash_fn(size_type);
- ranged_hash_fn(size_type size, const Comb_Hash_Fn& r_comb_hash_fn);
+ ranged_hash_fn(size_type, const Comb_Hash_Fn&);
- ranged_hash_fn(size_type size, const null_hash_fn& r_null_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn);
+ ranged_hash_fn(size_type, const null_type&, const Comb_Hash_Fn&);
void
- swap(PB_DS_CLASS_C_DEC& other);
+ swap(PB_DS_CLASS_C_DEC&);
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
- ranged_hash_fn(size_type size, const null_hash_fn& r_null_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn) :
- Comb_Hash_Fn(r_comb_hash_fn)
+ ranged_hash_fn(size_type size, const null_type& r_null_type,
+ const Comb_Hash_Fn& r_comb_hash_fn)
+ : Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
-#define PB_DS_CLASS_T_DEC \
- template<typename Key, class Allocator, class Comb_Hash_Fn>
+#define PB_DS_CLASS_T_DEC \
+ template<typename Key, typename _Alloc, typename Comb_Hash_Fn>
-#define PB_DS_CLASS_C_DEC \
- ranged_hash_fn< \
- Key, \
- null_hash_fn, \
- Allocator, \
- Comb_Hash_Fn, \
- true>
+#define PB_DS_CLASS_C_DEC \
+ ranged_hash_fn<Key, null_type, _Alloc, Comb_Hash_Fn, true>
/**
- * Specialization 4- The client does not supply a hash function
- * (by specifying null_hash_fn as the Hash_Fn parameter),
- * and requests that hash values be stored.
-
- **/
- template<typename Key, class Allocator, class Comb_Hash_Fn>
- class ranged_hash_fn<
- Key,
- null_hash_fn,
- Allocator,
- Comb_Hash_Fn,
- true> :
- public null_hash_fn,
- public Comb_Hash_Fn
+ * Specialization 4
+ * The client does not supply a hash function (by specifying
+ * null_type as the Hash_Fn parameter), and requests that hash
+ * values be stored.
+ **/
+ template<typename Key, typename _Alloc, typename Comb_Hash_Fn>
+ class ranged_hash_fn<Key, null_type, _Alloc, Comb_Hash_Fn, true>
+ : public Comb_Hash_Fn
{
protected:
- typedef typename Allocator::size_type size_type;
-
+ typedef typename _Alloc::size_type size_type;
typedef Comb_Hash_Fn comb_hash_fn_base;
- protected:
- ranged_hash_fn(size_type size);
+ ranged_hash_fn(size_type);
- ranged_hash_fn(size_type size, const Comb_Hash_Fn& r_comb_hash_fn);
+ ranged_hash_fn(size_type, const Comb_Hash_Fn&);
- ranged_hash_fn(size_type size, const null_hash_fn& r_null_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn);
+ ranged_hash_fn(size_type, const null_type&, const Comb_Hash_Fn&);
void
- swap(PB_DS_CLASS_C_DEC& other);
+ swap(PB_DS_CLASS_C_DEC&);
};
PB_DS_CLASS_T_DEC
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
- ranged_hash_fn(size_type size, const Comb_Hash_Fn& r_comb_hash_fn) :
- Comb_Hash_Fn(r_comb_hash_fn)
+ ranged_hash_fn(size_type size, const Comb_Hash_Fn& r_comb_hash_fn)
+ : Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
PB_DS_CLASS_C_DEC::
- ranged_hash_fn(size_type size, const null_hash_fn & r_null_hash_fn, const Comb_Hash_Fn& r_comb_hash_fn) :
- Comb_Hash_Fn(r_comb_hash_fn)
+ ranged_hash_fn(size_type size, const null_type& r_null_type,
+ const Comb_Hash_Fn& r_comb_hash_fn)
+ : Comb_Hash_Fn(r_comb_hash_fn)
{ }
PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_C_DEC
} // namespace detail
-} // namespace pb_ds
+} // namespace __gnu_pbds
#endif
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