1// run_timer_example.cpp ---------------------------------------------------//
2
3// Copyright Beman Dawes 2006, 2008
4
5// Distributed under the Boost Software License, Version 1.0.
6// See http://www.boost.org/LICENSE_1_0.txt
7
8// See http://www.boost.org/libs/chrono for documentation.
9
10#include <boost/chrono/process_times.hpp>
11#include <cmath>
12
13int main( int argc, char * argv[] )
14{
15 const char * format = argc > 1 ? argv[1] : "%t cpu seconds\n";
16 int places = argc > 2 ? std::atoi( nptr: argv[2] ) : 2;
17
18 boost::chrono::run_timer t( format, places );
19
20 for ( long i = 0; i < 10000; ++i )
21 std::sqrt( x: 123.456L ); // burn some time
22
23 return 0;
24}
25

source code of boost/libs/chrono/example/run_timer_example2.cpp