diff options
Diffstat (limited to 'libstdc++-v3/testsuite/util/hash_fn')
5 files changed, 404 insertions, 0 deletions
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 index 000000000..e81804ec0 --- /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 diff --git a/libstdc++-v3/testsuite/util/hash_fn/limit_string_hash_fn.hpp b/libstdc++-v3/testsuite/util/hash_fn/limit_string_hash_fn.hpp new file mode 100644 index 000000000..d040e1161 --- /dev/null +++ b/libstdc++-v3/testsuite/util/hash_fn/limit_string_hash_fn.hpp @@ -0,0 +1,72 @@ +// -*- 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 limit_string_hash_fn.hpp + * Contains a string hash function. + */ + +#ifndef PB_DS_LIMIT_STRING_HASH_FN_HPP +#define PB_DS_LIMIT_STRING_HASH_FN_HPP + +#include <string> + +namespace __gnu_pbds +{ + namespace test + { + struct limit_string_hash_fn + { + static size_t _S_max; + + inline size_t + operator()(const std::string& r_str) const + { + size_t ret = 0; + std::string::const_iterator b = r_str.begin(); + std::string::const_iterator e = r_str.end(); + + size_t i = 0; + while (b != e&& i < _S_max) + { + ret *= 5; + ret += static_cast<size_t>(*(b++)); + } + return ret; + } + }; + + size_t limit_string_hash_fn::_S_max; + + } // namespace test +} // namespace __gnu_pbds + +#endif diff --git a/libstdc++-v3/testsuite/util/hash_fn/string_hash_fn.hpp b/libstdc++-v3/testsuite/util/hash_fn/string_hash_fn.hpp new file mode 100644 index 000000000..9a1a415a0 --- /dev/null +++ b/libstdc++-v3/testsuite/util/hash_fn/string_hash_fn.hpp @@ -0,0 +1,68 @@ +// -*- 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 string_hash_fn.hpp + * Contains a string hash function. + */ + +#ifndef PB_DS_STRING_HASH_FN_HPP +#define PB_DS_STRING_HASH_FN_HPP + +#include <string> + +namespace __gnu_pbds +{ + namespace test + { + struct string_hash_fn + { + template<typename String_T> + inline size_t + operator()(const String_T& r_str) const + { + typedef typename String_T::const_iterator const_iterator; + const_iterator b = r_str.begin(); + const_iterator e = r_str.end(); + + size_t ret = 0; + while (b != e) + { + ret *= 5; + ret += static_cast<size_t>(*(b++)); + } + return ret; + } + }; + } // namespace test +} // namespace __gnu_pbds + +#endif diff --git a/libstdc++-v3/testsuite/util/hash_fn/string_ranged_hash_fn.hpp b/libstdc++-v3/testsuite/util/hash_fn/string_ranged_hash_fn.hpp new file mode 100644 index 000000000..fcf9f60ac --- /dev/null +++ b/libstdc++-v3/testsuite/util/hash_fn/string_ranged_hash_fn.hpp @@ -0,0 +1,99 @@ +// -*- 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 string_ranged_hash_fn.hpp + * Contains a ranged string hash function. + */ + +#ifndef PB_DS_STRING_RANGED_HASH_FN_HPP +#define PB_DS_STRING_RANGED_HASH_FN_HPP + +#include <string> +#include <hash_fn/dna_str_limit.hpp> + +namespace __gnu_pbds +{ + namespace test + { + template<typename Comb_Fn> + class string_ranged_hash_fn : public Comb_Fn + { + private: + size_t _M_limit; + + public: + typedef Comb_Fn comb_fn; + typedef detail::comb_hash_fn_string_form<comb_fn> string_form; + + inline size_t + operator()(const std::string& r_str) const + { + size_t ret = 0; + std::string::const_iterator b = r_str.begin(); + std::string::const_iterator e = r_str.end(); + + size_t i = 0; + while (i < _M_limit&& b != e) + { + ret *= 5; + ret += static_cast<size_t>(*(b++)); + ++i; + } + return (comb_fn::operator()(ret)); + } + + void + swap(string_ranged_hash_fn<Comb_Fn>& other) + { + std::swap(_M_limit, other._M_limit); + comb_fn::swap(other); + } + + void + notify_resized(size_t new_size) + { + comb_fn::notify_resized(new_size); + _M_limit = dna_str_limit(new_size); + } + + static std::string + name() + { return ("string_ranged_hash_fn_" + string_form<comb_fn>::name()); } + + static std::string + desc() + { return ("string ranged-hash using" + string_form<comb_fn>::desc()); } + }; + } // namespace test +} // namespace __gnu_pbds + +#endif diff --git a/libstdc++-v3/testsuite/util/hash_fn/string_ranged_probe_fn.hpp b/libstdc++-v3/testsuite/util/hash_fn/string_ranged_probe_fn.hpp new file mode 100644 index 000000000..c74991658 --- /dev/null +++ b/libstdc++-v3/testsuite/util/hash_fn/string_ranged_probe_fn.hpp @@ -0,0 +1,103 @@ +// -*- 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 string_ranged_probe_fn.hpp + * Contains a ranged string probe function. + */ + +#ifndef PB_DS_STRING_RANGED_PROBE_FN_HPP +#define PB_DS_STRING_RANGED_PROBE_FN_HPP + +#include <string> + +namespace __gnu_pbds +{ + namespace test + { + template<typename Comb_Fn, typename Probe_Fn> + class string_ranged_probe_fn : public Probe_Fn, public Comb_Fn + { + private: + size_t _M_limit; + + public: + typedef Comb_Fn comb_fn; + typedef Probe_Fn probe_fn; + typedef detail::comb_hash_fn_string_form<comb_fn> string_form; + + inline size_t + operator()(const std::string& r_str) const + { + size_t ret = 0; + std::string::const_iterator b = r_str.begin(); + std::string::const_iterator e = r_str.end(); + + size_t i = 0; + while (i < _M_limit&& b != e) + { + ret *= 5; + ret += static_cast<size_t>(*(b++)); + ++i; + } + return (comb_fn::operator()(ret)); + } + + inline size_t + operator()(const std::string&, const size_t hash, size_t i) const + { return comb_fn::operator()(hash + probe_fn::operator()(i)); } + + void + swap(string_ranged_probe_fn<Comb_Fn, Probe_Fn>& other) + { + std::swap(_M_limit, other._M_limit); + comb_fn::swap(other); + } + + void + notify_resized(size_t new_size) + { + comb_fn::notify_resized(new_size); + _M_limit = dna_str_limit(new_size); + } + + static std::string + name() + { return ("string_ranged_probe_fn_" + string_form<comb_fn>::name()); } + + static std::string + desc() + { return ("string ranged-probe using" + string_form<comb_fn>::desc());} + }; + } // namespace test +} // namespace __gnu_pbds + +#endif |