1
2 // Copyright (C) 2009-2012 Lorenzo Caminiti
3 // Distributed under the Boost Software License, Version 1.0
4 // (see accompanying file LICENSE_1_0.txt or a copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
6 // Home at http://www.boost.org/libs/local_function
7
8 #include <boost/spirit/home/phoenix/statement/sequence.hpp>
9 #include <boost/spirit/home/phoenix/core/reference.hpp>
10 #include <boost/spirit/home/phoenix/core/argument.hpp>
11 #include <boost/spirit/home/phoenix/operator/arithmetic.hpp>
12 #include <boost/chrono.hpp>
13 #include <iostream>
14 #include <vector>
15 #include <algorithm>
16 #include "profile_helpers.hpp"
17
main(int argc,char * argv[])18 int main(int argc, char* argv[]) {
19 unsigned long size = 0, trials = 0;
20 profile::args(argc, argv, size, trials);
21
22 double sum = 0.0;
23 int factor = 1;
24
25 std::vector<double> v(size);
26 std::fill(v.begin(), v.end(), 1.0);
27
28 boost::chrono::duration<double> trials_sec;
29 for(unsigned long i = 0; i < trials; ++i) {
30 boost::chrono::system_clock::time_point start =
31 boost::chrono::system_clock::now();
32
33 using boost::phoenix::ref;
34 using boost::phoenix::arg_names::_1;
35 std::for_each(v.begin(), v.end(), (
36 ref(sum) += factor * _1
37 ));
38
39 trials_sec += boost::chrono::system_clock::now() - start;
40 }
41
42 profile::display(size, trials, sum, trials_sec.count());
43 return 0;
44 }
45
46