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https://github.com/autc04/Retro68.git
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119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
// -*- C++ -*-
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// Copyright (C) 2005, 2006, 2009, 2011 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// warranty.
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/**
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* @file hash_random_int_erase_mem_usage_test.cpp
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* Contains test for erasing random integers.
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*/
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#include <ext/typelist.h>
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#include <testsuite_allocator.h>
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#include <performance/io/xml_formatter.hpp>
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#include <io/verified_cmd_line_input.hpp>
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#include <testsuite_rng.h>
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#include <common_type/assoc/common_type.hpp>
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#include <performance/assoc/mem_usage/erase_test.hpp>
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#include <iostream>
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#include <vector>
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#include <functional>
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struct int_hash : public std::unary_function<int, int>
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{
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inline int
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operator()(int i) const
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{ return i; }
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};
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void
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usage();
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int
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main(int argc, char* a_p_argv[])
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{
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using namespace __gnu_pbds::test;
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size_t vn = 200;
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size_t vs = 200;
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size_t vm = 2100;
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try
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{
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xml_test_performance_formatter fmt("Size", "Memory (bytes)");
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typedef std::vector<int> vec_t;
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vec_t a_v(vm);
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twister_rand_gen g;
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for (size_t i = 0; i < vm; ++i)
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a_v[i] = static_cast<int>(g.get_unsigned_long());
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vec_t::const_iterator b = a_v.begin();
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erase_test<vec_t::const_iterator> tst(b, vn, vs, vm);
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typedef __gnu_test::tracker_allocator<char> alloc_t;
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{
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typedef hash_common_types<int, __gnu_pbds::null_type, int_hash, std::equal_to<int>, alloc_t>::performance_tl tl_t;
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tl_t tl;
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__gnu_cxx::typelist::apply(tst, tl);
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}
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{
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typedef native_hash_set<int, 8, int_hash, std::equal_to<int>, std::less<int>, alloc_t> native_t;
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tst(native_t());
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}
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}
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catch (...)
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{
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std::cerr << "Test failed" << std::endl;
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return -1;
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}
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return 0;
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}
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void
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usage()
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{
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using namespace std;
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cerr << "usage: hash_random_int_erase_if_test <vn> <vs> <vm>"
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<< endl << endl;
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cerr << "This test checks the performance of various associative containers "
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"using their erase method. " << endl;
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cerr << "Specifically, it does the following:" << endl;
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cerr << "* Creates a vector of random integers " << endl;
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cerr << "* Inserts the elements into the container" << endl;
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cerr << "* Erases all the elements, except one, from the constainer"
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<< endl << endl;
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cerr << "vn = minimum size of the vector" << endl;
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cerr << "vs = step size of the vector" << endl;
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cerr << "vm = maximum size of the vector" << endl;
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}
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