1 | // io_ex1.cpp ----------------------------------------------------------// |
---|---|
2 | |
3 | // Copyright 2010 Howard Hinnant |
4 | // Copyright 2010 Vicente J. Botet Escriba |
5 | // Copyright (c) Microsoft Corporation 2014 |
6 | |
7 | // Distributed under the Boost Software License, Version 1.0. |
8 | // See http://www.boost.org/LICENSE_1_0.txt |
9 | |
10 | /* |
11 | This code was adapted by Vicente J. Botet Escriba from Hinnant's html documentation. |
12 | Many thanks to Howard for making his code available under the Boost license. |
13 | |
14 | */ |
15 | |
16 | #include <iostream> |
17 | #include <boost/chrono/config.hpp> |
18 | #include <boost/chrono/chrono_io.hpp> |
19 | #include <boost/chrono/system_clocks.hpp> |
20 | #include <boost/chrono/thread_clock.hpp> |
21 | #include <boost/chrono/process_cpu_clocks.hpp> |
22 | |
23 | int main() |
24 | { |
25 | using std::cout; |
26 | using namespace boost; |
27 | using namespace boost::chrono; |
28 | |
29 | cout << "milliseconds(1) = " |
30 | << milliseconds(1) << '\n'; |
31 | cout << "milliseconds(3) + microseconds(10) = " |
32 | << milliseconds(3) + microseconds(10) << '\n'; |
33 | |
34 | cout << "hours(3) + minutes(10) = " |
35 | << hours(3) + minutes(10) << '\n'; |
36 | |
37 | typedef duration<long long, ratio<1, 2500000000ULL> > ClockTick; |
38 | cout << "ClockTick(3) + nanoseconds(10) = " |
39 | << ClockTick(3) + nanoseconds(10) << '\n'; |
40 | |
41 | cout << "\nSet cout to use short names:\n"; |
42 | #if BOOST_CHRONO_VERSION==2 |
43 | cout << duration_fmt(duration_style::symbol); |
44 | #else |
45 | cout << duration_short; |
46 | #endif |
47 | cout << "milliseconds(3) + microseconds(10) = " |
48 | << milliseconds(3) + microseconds(10) << '\n'; |
49 | |
50 | cout << "hours(3) + minutes(10) = " |
51 | << hours(3) + minutes(10) << '\n'; |
52 | |
53 | cout << "ClockTick(3) + nanoseconds(10) = " |
54 | << ClockTick(3) + nanoseconds(10) << '\n'; |
55 | |
56 | cout << "\nsystem_clock::now() = "<< system_clock::now() << '\n'; |
57 | #if defined _MSC_VER && _MSC_VER == 1700 |
58 | #else |
59 | #if BOOST_CHRONO_VERSION==2 |
60 | cout << "\nsystem_clock::now() = "<< time_fmt(chrono::timezone::local) << system_clock::now() << '\n'; |
61 | cout << "\nsystem_clock::now() = "<< time_fmt(chrono::timezone::local, "%Y/%m/%d") << system_clock::now() << '\n'; |
62 | #endif |
63 | #endif |
64 | |
65 | #ifdef BOOST_CHRONO_HAS_CLOCK_STEADY |
66 | cout << "steady_clock::now() = "<< steady_clock::now() << '\n'; |
67 | #endif |
68 | #if BOOST_CHRONO_VERSION==2 |
69 | cout << "\nSet cout to use long names:\n"<< duration_fmt(duration_style::prefix) |
70 | << "high_resolution_clock::now() = "<< high_resolution_clock::now() << '\n'; |
71 | #else |
72 | cout << "\nSet cout to use long names:\n"<< duration_long |
73 | << "high_resolution_clock::now() = "<< high_resolution_clock::now() << '\n'; |
74 | #endif |
75 | #if defined(BOOST_CHRONO_HAS_THREAD_CLOCK) |
76 | cout << "\nthread_clock::now() = "<< thread_clock::now() << '\n'; |
77 | #endif |
78 | #if defined(BOOST_CHRONO_HAS_PROCESS_CLOCKS) |
79 | cout << "\nprocess_real_cpu_clock::now() = "<< process_real_cpu_clock::now() << '\n'; |
80 | #if BOOST_PLAT_WINDOWS_DESKTOP |
81 | cout << "\nprocess_user_cpu_clock::now() = "<< process_user_cpu_clock::now() << '\n'; |
82 | cout << "\nprocess_system_cpu_clock::now() = "<< process_system_cpu_clock::now() << '\n'; |
83 | cout << "\nprocess_cpu_clock::now() = "<< process_cpu_clock::now() << '\n'; |
84 | #endif |
85 | #endif |
86 | return 0; |
87 | } |
88 |