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Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp new file mode 100644 index 000000000..abf5f1185 --- /dev/null +++ b/gcc-4.4.3/libstdc++-v3/include/ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp @@ -0,0 +1,229 @@ +// -*- 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 synth_e_access_traits.hpp + * Contains an implementation class for a patricia tree. + */ + +#ifndef PB_DS_SYNTH_E_ACCESS_TRAITS_HPP +#define PB_DS_SYNTH_E_ACCESS_TRAITS_HPP + +#include <ext/pb_ds/detail/type_utils.hpp> + +namespace __gnu_pbds +{ + namespace detail + { + +#define PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC \ + template<typename Type_Traits, bool Set, class E_Access_Traits> + +#define PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC \ + synth_e_access_traits< \ + Type_Traits, \ + Set, \ + E_Access_Traits> + + template<typename Type_Traits, bool Set, class E_Access_Traits> + struct synth_e_access_traits : public E_Access_Traits + { + + private: + typedef E_Access_Traits base_type; + + typedef Type_Traits type_traits; + + typedef typename type_traits::const_key_reference const_key_reference; + + typedef typename type_traits::const_reference const_reference; + + public: + synth_e_access_traits(); + + synth_e_access_traits(const E_Access_Traits& r_traits); + + inline bool + equal_prefixes(typename base_type::const_iterator b_l, typename base_type::const_iterator e_l, typename base_type::const_iterator b_r, typename base_type::const_iterator e_r, bool compare_after = true) const; + + bool + equal_keys(const_key_reference r_lhs_key, const_key_reference r_rhs_key) const; + + bool + cmp_prefixes(typename base_type::const_iterator b_l, typename base_type::const_iterator e_l, typename base_type::const_iterator b_r, typename base_type::const_iterator e_r, bool compare_after = false) const; + + bool + cmp_keys(const_key_reference r_lhs_key, const_key_reference r_rhs_key) const; + + inline static const_key_reference + extract_key(const_reference r_val); + +#ifdef _GLIBCXX_DEBUG + bool + operator()(const_key_reference r_lhs, const_key_reference r_rhs); +#endif + + private: + inline static const_key_reference + extract_key(const_reference r_val, true_type); + + inline static const_key_reference + extract_key(const_reference r_val, false_type); + + private: + static integral_constant<int,Set> s_set_ind; + }; + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + integral_constant<int,Set> + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::s_set_ind; + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + synth_e_access_traits() + { } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + synth_e_access_traits(const E_Access_Traits& r_traits) : + E_Access_Traits(r_traits) + { } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + inline bool + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + equal_prefixes(typename base_type::const_iterator b_l, typename base_type::const_iterator e_l, typename base_type::const_iterator b_r, typename base_type::const_iterator e_r, bool compare_after /*= false */) const + { + while (b_l != e_l) + { + if (b_r == e_r) + return (false); + if (base_type::e_pos(*b_l) != base_type::e_pos(*b_r)) + return (false); + ++b_l; + ++b_r; + } + return (!compare_after || b_r == e_r); + } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + bool + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + equal_keys(const_key_reference r_lhs_key, const_key_reference r_rhs_key) const + { + return (equal_prefixes(base_type::begin(r_lhs_key), + base_type::end(r_lhs_key), + base_type::begin(r_rhs_key), + base_type::end(r_rhs_key), + true)); + } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + bool + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + cmp_prefixes(typename base_type::const_iterator b_l, typename base_type::const_iterator e_l, typename base_type::const_iterator b_r, typename base_type::const_iterator e_r, bool compare_after /* = false*/) const + { + while (b_l != e_l) + { + if (b_r == e_r) + return (false); + const typename base_type::size_type l_pos = + base_type::e_pos(*b_l); + const typename base_type::size_type r_pos = + base_type::e_pos(*b_r); + if (l_pos != r_pos) + return (l_pos < r_pos); + ++b_l; + ++b_r; + } + + if (!compare_after) + return (false); + return (b_r != e_r); + } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + bool + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + cmp_keys(const_key_reference r_lhs_key, const_key_reference r_rhs_key) const + { + return (cmp_prefixes(base_type::begin(r_lhs_key), + base_type::end(r_lhs_key), + base_type::begin(r_rhs_key), + base_type::end(r_rhs_key), + true)); + } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + inline typename PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::const_key_reference + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + extract_key(const_reference r_val) + { + return (extract_key(r_val, s_set_ind)); + } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + inline typename PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::const_key_reference + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + extract_key(const_reference r_val, true_type) + { + return (r_val); + } + + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + inline typename PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC::const_key_reference + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + extract_key(const_reference r_val, false_type) + { + return (r_val.first); + } + +#ifdef _GLIBCXX_DEBUG + PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC + bool + PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC:: + operator()(const_key_reference r_lhs, const_key_reference r_rhs) + { + return (cmp_keys(r_lhs, r_rhs)); + } +#endif + +#undef PB_DS_SYNTH_E_ACCESS_TRAITS_T_DEC +#undef PB_DS_SYNTH_E_ACCESS_TRAITS_C_DEC + + } // namespace detail +} // namespace __gnu_pbds + +#endif |