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Diffstat (limited to 'libstdc++-v3/testsuite/ext/pb_assoc/example/hash_initial_size.cc')
| -rw-r--r-- | libstdc++-v3/testsuite/ext/pb_assoc/example/hash_initial_size.cc | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/libstdc++-v3/testsuite/ext/pb_assoc/example/hash_initial_size.cc b/libstdc++-v3/testsuite/ext/pb_assoc/example/hash_initial_size.cc deleted file mode 100644 index fcd05795e29..00000000000 --- a/libstdc++-v3/testsuite/ext/pb_assoc/example/hash_initial_size.cc +++ /dev/null @@ -1,122 +0,0 @@ -// -*- C++ -*- - -// Copyright (C) 2005 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 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 COPYING. If not, write to the Free -// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, -// 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. - -// 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 gp_ht_map_resize_example.cpp - * An example of setting an initial size for a container object. - */ - -// For gp_hash_assoc_cntnr -#include <ext/pb_assoc/assoc_cntnr.hpp> -// For hash-related policies. -#include <ext/pb_assoc/hash_policy.hpp> -// For assert -#include <cassert> - -/* - * A simple hash functor. - * std::hash could serve instead of this functor, - * but it is not yet standard everywhere. - */ -struct int_hash : public std::unary_function< - int, - size_t> -{ - inline size_t - operator()(const int& r_i) const - { - return (r_i); - } -}; - -int -main() -{ - // Resize policy type. - typedef - pb_assoc::hash_standard_resize_policy< - // Size-policy type. - pb_assoc::hash_exponential_size_policy<>, - // Trigger-policy type. - pb_assoc::hash_load_check_resize_trigger<>, - /* Allow external access to size. - * This is just used in this example for using the - * get_actual_size method (which won't be accessible without - * this flag. - */ - true> - resize_policy_t; - - /* - * A collision-probing hash table mapping ints to chars. - */ - typedef - pb_assoc::gp_hash_assoc_cntnr< - int, - char, - int_hash, - std::equal_to< - int>, - // Combining function. - pb_assoc::direct_mask_range_hashing<>, - // Probe function. - pb_assoc::linear_probe_fn< - const int& >, - // Resize policy. - resize_policy_t> - map_t; - - // A resize-policy object with suggested initial size 256. - resize_policy_t res(pb_assoc::hash_exponential_size_policy<>(256)); - - map_t g(int_hash(), - std::equal_to<int>(), - pb_assoc::direct_mask_range_hashing<>(), - pb_assoc::linear_probe_fn<const int& >(), - res); - - /* - * Check the actual size of the container object. In this case, - * this should be the initial size given by the size policy object. - **/ - assert(g.get_actual_size() >= 256); - - assert(g.size() == 0); -} - |