diff options
Diffstat (limited to 'libstdc++-v3/include/ext/pb_ds/detail/hash_fn')
13 files changed, 1486 insertions, 0 deletions
diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp new file mode 100644 index 000000000..caf78482a --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mask_range_hashing_imp.hpp @@ -0,0 +1,58 @@ +// -*- 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. + +// 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 direct_mask_range_hashing_imp.hpp + * Contains a range-hashing policy implementation + */ + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +swap(PB_DS_CLASS_C_DEC& other) +{ mask_based_base::swap(other); } + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +notify_resized(size_type size) +{ mask_based_base::notify_resized(size); } + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::size_type +PB_DS_CLASS_C_DEC:: +operator()(size_type hash) const +{ return mask_based_base::range_hash(hash); } + diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp new file mode 100644 index 000000000..17d57b23d --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/direct_mod_range_hashing_imp.hpp @@ -0,0 +1,58 @@ +// -*- 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. + +// 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 direct_mod_range_hashing_imp.hpp + * Contains a range-hashing policy implementation + */ + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +swap(PB_DS_CLASS_C_DEC& other) +{ mod_based_base::swap(other); } + +PB_DS_CLASS_T_DEC +void +PB_DS_CLASS_C_DEC:: +notify_resized(size_type n) +{ mod_based_base::notify_resized(n); } + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::size_type +PB_DS_CLASS_C_DEC:: +operator()(size_type hash) const +{ return mod_based_base::range_hash(hash); } + diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp new file mode 100644 index 000000000..e7b264493 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/linear_probe_fn_imp.hpp @@ -0,0 +1,53 @@ +// -*- 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. + +// 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 linear_probe_fn_imp.hpp + * Contains a probe policy implementation + */ + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +swap(PB_DS_CLASS_C_DEC& other) +{ } + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::size_type +PB_DS_CLASS_C_DEC:: +operator()(size_type i) const +{ + return (i); +} diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp new file mode 100644 index 000000000..936abbee1 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mask_based_range_hashing.hpp @@ -0,0 +1,107 @@ +// -*- 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. + +// 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 mask_based_range_hashing.hpp + * Contains a range hashing policy base. + */ + +#ifndef PB_DS_MASK_BASED_RANGE_HASHING_HPP +#define PB_DS_MASK_BASED_RANGE_HASHING_HPP + +namespace __gnu_pbds +{ + namespace detail + { +#define PB_DS_CLASS_T_DEC template<typename Size_Type> +#define PB_DS_CLASS_C_DEC mask_based_range_hashing<Size_Type> + + template<typename Size_Type> + class mask_based_range_hashing + { + protected: + typedef Size_Type size_type; + + void + swap(mask_based_range_hashing& other) + { std::swap(m_mask, other.m_mask); } + + void + notify_resized(size_type size); + + inline size_type + range_hash(size_type hash) const + { return size_type(hash & m_mask); } + + private: + size_type m_mask; + const static size_type s_num_bits_in_size_type; + const static size_type s_highest_bit_1; + }; + + PB_DS_CLASS_T_DEC + const typename PB_DS_CLASS_C_DEC::size_type + PB_DS_CLASS_C_DEC::s_num_bits_in_size_type = + sizeof(typename PB_DS_CLASS_C_DEC::size_type) << 3; + + PB_DS_CLASS_T_DEC + const typename PB_DS_CLASS_C_DEC::size_type PB_DS_CLASS_C_DEC::s_highest_bit_1 = static_cast<typename PB_DS_CLASS_C_DEC::size_type>(1) << (s_num_bits_in_size_type - 1); + + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + notify_resized(size_type size) + { + size_type i = 0; + while (size ^ s_highest_bit_1) + { + size <<= 1; + ++i; + } + + m_mask = 1; + i += 2; + while (i++ < s_num_bits_in_size_type) + m_mask = (m_mask << 1) ^ 1; + } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + + } // namespace detail +} // namespace __gnu_pbds + +#endif diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp new file mode 100644 index 000000000..2610e0457 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/mod_based_range_hashing.hpp @@ -0,0 +1,108 @@ +// -*- 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. + +// 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 mod_based_range_hashing.hpp + * Contains a range hashing policy base. + */ + +#ifndef PB_DS_MOD_BASED_RANGE_HASHING_HPP +#define PB_DS_MOD_BASED_RANGE_HASHING_HPP + +namespace __gnu_pbds +{ + + namespace detail + { + +#define PB_DS_CLASS_T_DEC \ + template<typename Size_Type> + +#define PB_DS_CLASS_C_DEC \ + mod_based_range_hashing< \ + Size_Type> + + template<typename Size_Type> + class mod_based_range_hashing + { + protected: + typedef Size_Type size_type; + + protected: + void + swap(PB_DS_CLASS_C_DEC& other); + + void + notify_resized(size_type size); + + inline size_type + range_hash(size_type hash) const; + + private: + size_type m_size; + }; + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { + std::swap(m_size, other.m_size); + } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + notify_resized(size_type size) + { + m_size = size; + } + + PB_DS_CLASS_T_DEC + inline typename PB_DS_CLASS_C_DEC::size_type + PB_DS_CLASS_C_DEC:: + range_hash(size_type hash) const + { + return (hash % m_size); + } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + + } // namespace detail + +} // namespace __gnu_pbds + +#endif // #ifndef PB_DS_MOD_BASED_RANGE_HASHING_HPP diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp new file mode 100644 index 000000000..970cfc1e5 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/probe_fn_base.hpp @@ -0,0 +1,59 @@ +// -*- 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. + +// 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 probe_fn_base.hpp + * Contains a probe policy base. + */ + +#ifndef PB_DS_PROBE_FN_BASE_HPP +#define PB_DS_PROBE_FN_BASE_HPP + +#include <functional> + +namespace __gnu_pbds +{ + namespace detail + { + template<typename Allocator> + class probe_fn_base + { + protected: + ~probe_fn_base() { } + }; +} // namespace detail +} // namespace __gnu_pbds + +#endif diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp new file mode 100644 index 000000000..4c7a6c465 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/quadratic_probe_fn_imp.hpp @@ -0,0 +1,53 @@ +// -*- 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. + +// 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 quadratic_probe_fn_imp.hpp + * Contains a probe policy implementation + */ + +PB_DS_CLASS_T_DEC +inline void +PB_DS_CLASS_C_DEC:: +swap(PB_DS_CLASS_C_DEC& other) +{ } + +PB_DS_CLASS_T_DEC +inline typename PB_DS_CLASS_C_DEC::size_type +PB_DS_CLASS_C_DEC:: +operator()(size_type i) const +{ + return (i* i); +} diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp new file mode 100644 index 000000000..24899272f --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_hash_fn.hpp @@ -0,0 +1,359 @@ +// -*- 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. + +// 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 ranged_hash_fn.hpp + * 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 <debug/debug.h> + +namespace __gnu_pbds +{ + namespace detail + { + template<typename Key, typename Hash_Fn, typename Allocator, + typename Comb_Hash_Fn, bool Store_Hash> + class ranged_hash_fn; + +#define PB_DS_CLASS_T_DEC \ + template<typename Key, typename Hash_Fn, typename Allocator, \ + typename Comb_Hash_Fn> + +#define PB_DS_CLASS_C_DEC \ + ranged_hash_fn<Key, Hash_Fn, Allocator, 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. + **/ + template<typename Key, typename Hash_Fn, typename Allocator, + typename Comb_Hash_Fn> + class ranged_hash_fn< Key, Hash_Fn, Allocator, Comb_Hash_Fn, false> + : public Hash_Fn, public Comb_Hash_Fn + { + protected: + typedef typename Allocator::size_type size_type; + typedef Hash_Fn hash_fn_base; + typedef Comb_Hash_Fn comb_hash_fn_base; + typedef typename Allocator::template rebind< Key>::other key_allocator; + typedef typename key_allocator::const_reference const_key_reference; + + ranged_hash_fn(size_type); + + ranged_hash_fn(size_type, const Hash_Fn&); + + ranged_hash_fn(size_type, const Hash_Fn&, const Comb_Hash_Fn&); + + void + swap(PB_DS_CLASS_C_DEC&); + + void + notify_resized(size_type); + + inline size_type + operator()(const_key_reference) const; + }; + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_hash_fn(size_type 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); } + + 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); } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { + comb_hash_fn_base::swap(other); + std::swap((Hash_Fn& )(*this), (Hash_Fn& )other); + } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + notify_resized(size_type 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)));} + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + +#define PB_DS_CLASS_T_DEC \ + template<typename Key, typename Hash_Fn, typename Allocator, \ + typename Comb_Hash_Fn> + +#define PB_DS_CLASS_C_DEC \ + ranged_hash_fn<Key,Hash_Fn, Allocator, Comb_Hash_Fn, true> + + /** + * Specialization 2 + * The client supplies a hash function and a ranged hash function, + * and requests that hash values be stored. + **/ + template<typename Key, typename Hash_Fn, typename Allocator, + typename Comb_Hash_Fn> + class ranged_hash_fn<Key, Hash_Fn, Allocator, Comb_Hash_Fn, true> + : public Hash_Fn, public Comb_Hash_Fn + { + protected: + typedef typename Allocator::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 Allocator::template rebind<Key>::other key_allocator; + typedef typename key_allocator::const_reference const_key_reference; + + ranged_hash_fn(size_type); + + ranged_hash_fn(size_type, const Hash_Fn&); + + ranged_hash_fn(size_type, const Hash_Fn&, const Comb_Hash_Fn&); + + void + swap(PB_DS_CLASS_C_DEC&); + + void + notify_resized(size_type); + + inline comp_hash + operator()(const_key_reference) const; + + inline comp_hash + operator()(const_key_reference, size_type) const; + }; + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_hash_fn(size_type 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); } + + 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); } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { + comb_hash_fn_base::swap(other); + std::swap((Hash_Fn& )(*this), (Hash_Fn& )other); + } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + notify_resized(size_type size) + { comb_hash_fn_base::notify_resized(size); } + + 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 + { + const size_type hash = hash_fn_base::operator()(r_key); + return std::make_pair(comb_hash_fn_base::operator()(hash), hash); + } + + PB_DS_CLASS_T_DEC + inline typename PB_DS_CLASS_C_DEC::comp_hash + PB_DS_CLASS_C_DEC:: + operator() +#ifdef _GLIBCXX_DEBUG + (const_key_reference r_key, size_type hash) const +#else + (const_key_reference /*r_key*/, size_type hash) const +#endif + { + _GLIBCXX_DEBUG_ASSERT(hash == hash_fn_base::operator()(r_key)); + return std::make_pair(comb_hash_fn_base::operator()(hash), hash); + } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + +#define PB_DS_CLASS_T_DEC \ + template<typename Key, typename Allocator, typename Comb_Hash_Fn> + +#define PB_DS_CLASS_C_DEC \ + ranged_hash_fn<Key, null_hash_fn, Allocator, 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, typename Allocator, typename Comb_Hash_Fn> + class ranged_hash_fn<Key, null_hash_fn, Allocator, Comb_Hash_Fn, false> + : public null_hash_fn, public Comb_Hash_Fn + { + protected: + typedef typename Allocator::size_type size_type; + typedef Comb_Hash_Fn comb_hash_fn_base; + + ranged_hash_fn(size_type); + + ranged_hash_fn(size_type, const Comb_Hash_Fn&); + + ranged_hash_fn(size_type, const null_hash_fn&, const Comb_Hash_Fn&); + + void + swap(PB_DS_CLASS_C_DEC&); + }; + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_hash_fn(size_type size) + { Comb_Hash_Fn::notify_resized(size); } + + 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) + { } + + 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) + { } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { comb_hash_fn_base::swap(other); } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + +#define PB_DS_CLASS_T_DEC \ + template<typename Key, typename Allocator, typename Comb_Hash_Fn> + +#define PB_DS_CLASS_C_DEC \ + ranged_hash_fn<Key, null_hash_fn, Allocator, 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, typename Allocator, typename Comb_Hash_Fn> + class ranged_hash_fn<Key, null_hash_fn, Allocator, Comb_Hash_Fn, true> + : public null_hash_fn, public Comb_Hash_Fn + { + protected: + typedef typename Allocator::size_type size_type; + typedef Comb_Hash_Fn comb_hash_fn_base; + + ranged_hash_fn(size_type); + + ranged_hash_fn(size_type, const Comb_Hash_Fn&); + + ranged_hash_fn(size_type, const null_hash_fn&, const Comb_Hash_Fn&); + + void + swap(PB_DS_CLASS_C_DEC&); + }; + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_hash_fn(size_type size) + { Comb_Hash_Fn::notify_resized(size); } + + 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) + { } + + 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) + { } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { comb_hash_fn_base::swap(other); } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + + } // namespace detail +} // namespace __gnu_pbds + +#endif diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp new file mode 100644 index 000000000..ddfba9de1 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/ranged_probe_fn.hpp @@ -0,0 +1,327 @@ +// -*- 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. + +// 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 ranged_probe_fn.hpp + * Contains a unified ranged probe functor, allowing the probe tables to deal with + * a single class for ranged probeing. + */ + +#ifndef PB_DS_RANGED_PROBE_FN_HPP +#define PB_DS_RANGED_PROBE_FN_HPP + +#include <ext/pb_ds/detail/basic_types.hpp> +#include <utility> +#include <debug/debug.h> + +namespace __gnu_pbds +{ + namespace detail + { + template<typename Key, typename Hash_Fn, typename Allocator, + typename Comb_Probe_Fn, typename Probe_Fn, bool Store_Hash> + class ranged_probe_fn; + +#define PB_DS_CLASS_T_DEC \ + template<typename Key, typename Hash_Fn, typename Allocator, \ + typename Comb_Probe_Fn, typename Probe_Fn> + +#define PB_DS_CLASS_C_DEC \ + ranged_probe_fn<Key, Hash_Fn, Allocator, Comb_Probe_Fn, Probe_Fn, false> + + /** + * Specialization 1 + * The client supplies a probe function and a ranged probe + * function, and requests that hash values not be stored. + **/ + template<typename Key, typename Hash_Fn, typename Allocator, + typename Comb_Probe_Fn, typename Probe_Fn> + class ranged_probe_fn<Key, Hash_Fn, Allocator, Comb_Probe_Fn, + Probe_Fn, false> + : public Hash_Fn, public Comb_Probe_Fn, public Probe_Fn + { + protected: + typedef typename Allocator::size_type size_type; + typedef Comb_Probe_Fn comb_probe_fn_base; + typedef Hash_Fn hash_fn_base; + typedef Probe_Fn probe_fn_base; + typedef typename Allocator::template rebind<Key>::other key_allocator; + typedef typename key_allocator::const_reference const_key_reference; + + ranged_probe_fn(size_type); + + ranged_probe_fn(size_type, const Hash_Fn&); + + ranged_probe_fn(size_type, const Hash_Fn&, const Comb_Probe_Fn&); + + ranged_probe_fn(size_type, const Hash_Fn&, const Comb_Probe_Fn&, + const Probe_Fn&); + + void + swap(PB_DS_CLASS_C_DEC&); + + void + notify_resized(size_type); + + inline size_type + operator()(const_key_reference) const; + + inline size_type + operator()(const_key_reference, size_type, size_type) const; + }; + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size) + { Comb_Probe_Fn::notify_resized(size); } + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size, const Hash_Fn& r_hash_fn) + : Hash_Fn(r_hash_fn) + { Comb_Probe_Fn::notify_resized(size); } + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size, const Hash_Fn& r_hash_fn, + const Comb_Probe_Fn& r_comb_probe_fn) + : Hash_Fn(r_hash_fn), Comb_Probe_Fn(r_comb_probe_fn) + { comb_probe_fn_base::notify_resized(size); } + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size, const Hash_Fn& r_hash_fn, + const Comb_Probe_Fn& r_comb_probe_fn, + const Probe_Fn& r_probe_fn) + : Hash_Fn(r_hash_fn), Comb_Probe_Fn(r_comb_probe_fn), Probe_Fn(r_probe_fn) + { comb_probe_fn_base::notify_resized(size); } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { + comb_probe_fn_base::swap(other); + std::swap((Hash_Fn& )(*this), (Hash_Fn&)other); + } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + notify_resized(size_type size) + { comb_probe_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_probe_fn_base::operator()(hash_fn_base::operator()(r_key)); } + + PB_DS_CLASS_T_DEC + inline typename PB_DS_CLASS_C_DEC::size_type + PB_DS_CLASS_C_DEC:: + operator()(const_key_reference, size_type hash, size_type i) const + { + return comb_probe_fn_base::operator()(hash + probe_fn_base::operator()(i)); + } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + +#define PB_DS_CLASS_T_DEC \ + template<typename Key, typename Hash_Fn, typename Allocator, \ + typename Comb_Probe_Fn, typename Probe_Fn> + +#define PB_DS_CLASS_C_DEC \ + ranged_probe_fn<Key, Hash_Fn, Allocator, Comb_Probe_Fn, Probe_Fn, true> + + /** + * Specialization 2- The client supplies a probe function and a ranged + * probe function, and requests that hash values not be stored. + **/ + template<typename Key, typename Hash_Fn, typename Allocator, + typename Comb_Probe_Fn, typename Probe_Fn> + class ranged_probe_fn<Key, Hash_Fn, Allocator, Comb_Probe_Fn, + Probe_Fn, true> + : public Hash_Fn, public Comb_Probe_Fn, public Probe_Fn + { + protected: + typedef typename Allocator::size_type size_type; + typedef std::pair<size_type, size_type> comp_hash; + typedef Comb_Probe_Fn comb_probe_fn_base; + typedef Hash_Fn hash_fn_base; + typedef Probe_Fn probe_fn_base; + typedef typename Allocator::template rebind<Key>::other key_allocator; + typedef typename key_allocator::const_reference const_key_reference; + + ranged_probe_fn(size_type); + + ranged_probe_fn(size_type, const Hash_Fn&); + + ranged_probe_fn(size_type, const Hash_Fn&, + const Comb_Probe_Fn&); + + ranged_probe_fn(size_type, const Hash_Fn&, const Comb_Probe_Fn&, + const Probe_Fn&); + + void + swap(PB_DS_CLASS_C_DEC&); + + void + notify_resized(size_type); + + inline comp_hash + operator()(const_key_reference) const; + + inline size_type + operator()(const_key_reference, size_type, size_type) const; + + inline size_type + operator()(const_key_reference, size_type) const; + }; + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size) + { Comb_Probe_Fn::notify_resized(size); } + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size, const Hash_Fn& r_hash_fn) + : Hash_Fn(r_hash_fn) + { Comb_Probe_Fn::notify_resized(size); } + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size, const Hash_Fn& r_hash_fn, + const Comb_Probe_Fn& r_comb_probe_fn) + : Hash_Fn(r_hash_fn), Comb_Probe_Fn(r_comb_probe_fn) + { comb_probe_fn_base::notify_resized(size); } + + PB_DS_CLASS_T_DEC + PB_DS_CLASS_C_DEC:: + ranged_probe_fn(size_type size, const Hash_Fn& r_hash_fn, + const Comb_Probe_Fn& r_comb_probe_fn, + const Probe_Fn& r_probe_fn) + : Hash_Fn(r_hash_fn), Comb_Probe_Fn(r_comb_probe_fn), Probe_Fn(r_probe_fn) + { comb_probe_fn_base::notify_resized(size); } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + swap(PB_DS_CLASS_C_DEC& other) + { + comb_probe_fn_base::swap(other); + std::swap((Hash_Fn& )(*this), (Hash_Fn& )other); + } + + PB_DS_CLASS_T_DEC + void + PB_DS_CLASS_C_DEC:: + notify_resized(size_type size) + { comb_probe_fn_base::notify_resized(size); } + + 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 + { + const size_type hash = hash_fn_base::operator()(r_key); + return std::make_pair(comb_probe_fn_base::operator()(hash), hash); + } + + PB_DS_CLASS_T_DEC + inline typename PB_DS_CLASS_C_DEC::size_type + PB_DS_CLASS_C_DEC:: + operator()(const_key_reference, size_type hash, size_type i) const + { + return comb_probe_fn_base::operator()(hash + probe_fn_base::operator()(i)); + } + + PB_DS_CLASS_T_DEC + inline typename PB_DS_CLASS_C_DEC::size_type + PB_DS_CLASS_C_DEC:: + operator() +#ifdef _GLIBCXX_DEBUG + (const_key_reference r_key, size_type hash) const +#else + (const_key_reference /*r_key*/, size_type hash) const +#endif + { + _GLIBCXX_DEBUG_ASSERT(hash == hash_fn_base::operator()(r_key)); + return hash; + } + +#undef PB_DS_CLASS_T_DEC +#undef PB_DS_CLASS_C_DEC + + /** + * Specialization 3 and 4 + * The client does not supply a hash function or probe function, + * and requests that hash values not be stored. + **/ + template<typename Key, typename Allocator, typename Comb_Probe_Fn> + class ranged_probe_fn<Key, null_hash_fn, Allocator, Comb_Probe_Fn, + null_probe_fn, false> + : public Comb_Probe_Fn, public null_hash_fn, public null_probe_fn + { + protected: + typedef typename Allocator::size_type size_type; + typedef Comb_Probe_Fn comb_probe_fn_base; + typedef typename Allocator::template rebind<Key>::other key_allocator; + typedef typename key_allocator::const_reference const_key_reference; + + ranged_probe_fn(size_type size) + { Comb_Probe_Fn::notify_resized(size); } + + ranged_probe_fn(size_type, const Comb_Probe_Fn& r_comb_probe_fn) + : Comb_Probe_Fn(r_comb_probe_fn) + { } + + ranged_probe_fn(size_type, const null_hash_fn&, + const Comb_Probe_Fn& r_comb_probe_fn, + const null_probe_fn&) + : Comb_Probe_Fn(r_comb_probe_fn) + { } + + void + swap(ranged_probe_fn& other) + { comb_probe_fn_base::swap(other); } + }; + } // namespace detail +} // namespace __gnu_pbds + +#endif + diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp new file mode 100644 index 000000000..7dcd82588 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp @@ -0,0 +1,73 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2010 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 sample_probe_fn.hpp + * Contains a sample probe policy. + */ + +#ifndef PB_DS_SAMPLE_PROBE_FN_HPP +#define PB_DS_SAMPLE_PROBE_FN_HPP + +// A sample probe policy. +class sample_probe_fn +{ + +public: + + // Size type. + typedef std::size_t size_type; + +public: + + // Default constructor. + sample_probe_fn(); + + // Copy constructor. + sample_probe_fn(const sample_probe_fn& other); + + // Swaps content. + inline void + swap(sample_probe_fn& other); + +protected: + + // Returns the i-th offset from the hash value of some key r_key. + inline size_type + operator()(const_key_reference r_key, size_type i) const; + +}; + +#endif // #ifndef PB_DS_SAMPLE_PROBE_FN_HPP diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp new file mode 100644 index 000000000..988f111ea --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp @@ -0,0 +1,77 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2010 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 sample_range_hashing.hpp + * Contains a range hashing policy. + */ + +#ifndef PB_DS_SAMPLE_RANGE_HASHING_HPP +#define PB_DS_SAMPLE_RANGE_HASHING_HPP + +// A sample range-hashing functor. +class sample_range_hashing +{ + +public: + + // Size type. + typedef std::size_t size_type; + +public: + + // Default constructor. + sample_range_hashing(); + + // Copy constructor. + sample_range_hashing(const sample_range_hashing& other); + + // Swaps content. + inline void + swap(sample_range_hashing& other); + +protected: + + // Notifies the policy object that the container's __size has changed to size. + void + notify_resized(size_type size); + + // Transforms the __hash value hash into a ranged-hash value. + inline size_type + operator()(size_type hash) const; + +}; + +#endif // #ifndef PB_DS_SAMPLE_RANGE_HASHING_HPP diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp new file mode 100644 index 000000000..8fa04d140 --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_hash_fn.hpp @@ -0,0 +1,77 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2010 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 sample_ranged_hash_fn.hpp + * Contains a ranged hash policy. + */ + +#ifndef PB_DS_SAMPLE_RANGED_HASH_FN_HPP +#define PB_DS_SAMPLE_RANGED_HASH_FN_HPP + +// A sample ranged-hash functor. +class sample_ranged_hash_fn +{ + +public: + + // Size type. + typedef std::size_t size_type; + +public: + + // Default constructor. + sample_ranged_hash_fn(); + + // Copy constructor. + sample_ranged_hash_fn(const sample_ranged_hash_fn& other); + + // Swaps content. + inline void + swap(sample_ranged_hash_fn& other); + +protected: + + // Notifies the policy object that the container's __size has changed to size. + void + notify_resized(size_type size); + + // Transforms r_key into a position within the table. + inline size_type + operator()(const_key_reference r_key) const; + +}; + +#endif // #ifndef PB_DS_SAMPLE_RANGED_HASH_FN_HPP diff --git a/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp new file mode 100644 index 000000000..2bcfdf51a --- /dev/null +++ b/libstdc++-v3/include/ext/pb_ds/detail/hash_fn/sample_ranged_probe_fn.hpp @@ -0,0 +1,77 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2010 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 sample_ranged_probe_fn.hpp + * Contains a ranged probe policy. + */ + +#ifndef PB_DS_SAMPLE_RANGED_PROBE_FN_HPP +#define PB_DS_SAMPLE_RANGED_PROBE_FN_HPP + +// A sample ranged-probe functor. +class sample_ranged_probe_fn +{ + +public: + + // Size type. + typedef std::size_t size_type; + +public: + + // Default constructor. + sample_ranged_probe_fn(); + + // Copy constructor. + sample_ranged_probe_fn(const sample_ranged_probe_fn& other); + + // Swaps content. + inline void + swap(sample_ranged_probe_fn& other); + +protected: + + // Notifies the policy object that the container's __size has changed to size. + void + notify_resized(size_type size); + + // Transforms the const key reference r_key into the i-th position within the table. This method is called for each collision within the probe sequence. + inline size_type + operator()(const_key_reference r_key, std::size_t hash, size_type i) const; + +}; + +#endif // #ifndef PB_DS_SAMPLE_RANGED_PROBE_FN_HPP |