1 #include <boost/config.hpp>
2 
3 #if defined(BOOST_MSVC)
4 #pragma warning(disable: 4786)  // identifier truncated in debug info
5 #pragma warning(disable: 4710)  // function not inlined
6 #pragma warning(disable: 4711)  // function selected for automatic inline expansion
7 #pragma warning(disable: 4514)  // unreferenced inline removed
8 #endif
9 
10 //
11 //  shared_ptr_timing_test.cpp - use to evaluate the impact of thread safety
12 //
13 //  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
14 //
15 // Distributed under the Boost Software License, Version 1.0. (See
16 // accompanying file LICENSE_1_0.txt or copy at
17 // http://www.boost.org/LICENSE_1_0.txt)
18 //
19 
20 #include <boost/shared_ptr.hpp>
21 #include <iostream>
22 #include <vector>
23 #include <ctime>
24 
25 int const n = 8 * 1024 * 1024;
26 
main()27 int main()
28 {
29     using namespace std;
30 
31     std::vector< boost::shared_ptr<int> > v;
32     boost::shared_ptr<int> pi(new int);
33 
34     clock_t t = clock();
35 
36     for(int i = 0; i < n; ++i)
37     {
38         v.push_back(pi);
39     }
40 
41     t = clock() - t;
42 
43     std::cout << static_cast<double>(t) / CLOCKS_PER_SEC << '\n';
44 
45     return 0;
46 }
47