78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
// Copyright (C) 2003-2019 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
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <ctime>
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#include <iostream>
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#include <string>
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#include <testsuite_performance.h>
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using namespace std;
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void
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test_append_char(int how_much)
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{
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string buf; // no preallocation
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for (int i = 0; i < how_much; ++i)
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buf.append(static_cast<string::size_type>(1) , 'x');
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}
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void
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test_append_string(int how_much)
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{
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string s(static_cast<string::size_type>(1) , 'x');
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string buf; // no preallocation
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for (int i = 0; i < how_much; ++i)
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buf.append(s);
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}
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void
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run_benchmark1(int how_much)
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{
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using namespace __gnu_test;
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time_counter time;
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resource_counter resource;
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start_counters(time, resource);
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test_append_char(how_much);
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stop_counters(time, resource);
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report_performance(__FILE__, "char", time, resource);
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}
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void
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run_benchmark2(int how_much)
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{
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using namespace __gnu_test;
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time_counter time;
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resource_counter resource;
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start_counters(time, resource);
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test_append_string(how_much);
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stop_counters(time, resource);
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report_performance(__FILE__, "string", time, resource);
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}
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// libstdc++/5380
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// libstdc++/4960
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int main()
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{
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run_benchmark1(100000);
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run_benchmark2(100000);
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run_benchmark1(1000000);
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run_benchmark2(1000000);
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run_benchmark1(10000000);
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run_benchmark2(10000000);
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}
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