1 | // stopclock_perf.cpp ---------------------------------------------------// |
2 | |
3 | // Copyright 2009 Vicente J. Botet Escriba |
4 | // Copyright 2009 Howard Hinnant |
5 | |
6 | // Distributed under the Boost Software License, Version 1.0. |
7 | // See http://www.boost.org/LICENSE_1_0.txt |
8 | |
9 | // See http://www.boost.org/libs/chrono for documentation. |
10 | |
11 | #ifndef BOOST_CHRONO_CLOCK_NAME_HPP |
12 | #define BOOST_CHRONO_CLOCK_NAME_HPP |
13 | |
14 | #include <boost/chrono/chrono.hpp> |
15 | #include <boost/type_traits/is_same.hpp> |
16 | |
17 | template <typename Clock, |
18 | bool = boost::is_same<Clock, boost::chrono::system_clock>::value, |
19 | #ifdef BOOST_CHRONO_HAS_CLOCK_STEADY |
20 | bool = boost::is_same<Clock, boost::chrono::steady_clock>::value, |
21 | #else |
22 | bool = false, |
23 | #endif |
24 | bool = boost::is_same<Clock, boost::chrono::high_resolution_clock>::value |
25 | > |
26 | struct name; |
27 | |
28 | template <typename Clock> |
29 | struct name<Clock, false, false, false> { |
30 | static const char* apply() { return "unknown clock" ;} |
31 | }; |
32 | |
33 | template <typename Clock> |
34 | struct name<Clock, true, false, false> { |
35 | static const char* apply() { return "system_clock" ;} |
36 | }; |
37 | |
38 | template <typename Clock> |
39 | struct name<Clock, false, true, false> { |
40 | static const char* apply() { return "steady_clock" ;} |
41 | }; |
42 | |
43 | template <typename Clock> |
44 | struct name<Clock, false, false, true> { |
45 | static const char* apply() { return "high_resolution_clock" ;} |
46 | }; |
47 | |
48 | template <typename Clock> |
49 | struct name<Clock, false, true, true> { |
50 | static const char* apply() { return "steady_clock and high_resolution_clock" ;} |
51 | }; |
52 | |
53 | template <typename Clock> |
54 | struct name<Clock, true, false, true> { |
55 | static const char* apply() { return "system_clock and high_resolution_clock" ;} |
56 | }; |
57 | |
58 | template <typename Clock> |
59 | struct name<Clock, true, true, false> { |
60 | static const char* apply() { return "system_clock and steady_clock" ;} |
61 | }; |
62 | |
63 | template <typename Clock> |
64 | struct name<Clock, true, true, true> { |
65 | static const char* apply() { return "system_clock, steady_clock and high_resolution_clock" ;} |
66 | }; |
67 | |
68 | #endif |
69 | |