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Diffstat (limited to 'libstdc++-v3/testsuite/ext/pb_assoc/example/hash_illegal_resize.cc')
| -rw-r--r-- | libstdc++-v3/testsuite/ext/pb_assoc/example/hash_illegal_resize.cc | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/libstdc++-v3/testsuite/ext/pb_assoc/example/hash_illegal_resize.cc b/libstdc++-v3/testsuite/ext/pb_assoc/example/hash_illegal_resize.cc deleted file mode 100644 index 404c9f983f4..00000000000 --- a/libstdc++-v3/testsuite/ext/pb_assoc/example/hash_illegal_resize.cc +++ /dev/null @@ -1,148 +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 hash_illegal_resize_example.cpp - * An example of externally resizing a hash-based 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 cannot_resize -#include <ext/pb_assoc/exception.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() -{ - /* - * A probing hash table mapping ints to chars. - */ - typedef - pb_assoc::gp_hash_assoc_cntnr< - int, - int, - int_hash, - std::equal_to< - int>, - // Combining function. - pb_assoc::direct_mod_range_hashing<>, - // Probe function. - pb_assoc::quadratic_probe_fn< - const int& >, - // Resize policy. - pb_assoc::hash_standard_resize_policy< - pb_assoc::hash_prime_size_policy, - pb_assoc::hash_load_check_resize_trigger<>, - /* Allow external access to size. - * Without setting this to true, external resizing - * is not possible. - */ - true> > - map_t; - - map_t g; - - /* - * Check the actual size of the container object. - * This should be at least - * the initial size given by the size policy object. - **/ - assert(g.get_actual_size() > 8); - - // Insert some elements. - - int i; - - for (i = 0; i < 1000; ++i) - g[i] = 2* i; - - // Check all ok. - - assert(g.size() == 1000); - - for (i = 0; i < 1000; ++i) - assert(g.find(i) != g.end()&& g.find(i)->second == 2* i); - - // Now attempt to resize the table to 200 (impossible). - - bool ex_thrown = false; - - try - { - g.resize(200); - } - catch(pb_assoc::cannot_resize& ) - { - ex_thrown = true; - } - - /* - * Assert an exception was thrown. A probing table cannot contain - * 1000 entries in less than 1000 places. - */ - assert(ex_thrown); - - // Check all ok. - - assert(g.size() == 1000); - - for (i = 0; i < 1000; ++i) - assert(g.find(i) != g.end()&& g.find(i)->second == 2* i); -} - |