insula/milliseconds_to_string.cpp at master · pmiddend/insula · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
#include "milliseconds_to_string.hpp"
#include <fcppt/format.hpp>
#include <fcppt/math/mod.hpp>
#include <fcppt/text.hpp>
#include <chrono>
#include <type_traits>

fcppt::string const
insula::milliseconds_to_string(
	std::chrono::milliseconds const &d)
{
	typedef std::chrono::milliseconds::rep rep;
	typedef std::make_unsigned<std::chrono::milliseconds::rep>::type urep;

	rep const
		minutes =
			static_cast<rep>(
				d.count() / static_cast<rep>(1000*60)),
		residue =
			static_cast<rep>(
				fcppt::math::mod(
					static_cast<urep>(
						d.count()),
					static_cast<urep>(
						1000*60))),
		seconds =
			static_cast<rep>(
				residue / static_cast<rep>(1000)),
		milliseconds =
			static_cast<rep>(
				fcppt::math::mod(
					static_cast<urep>(residue),
					static_cast<urep>(1000)));

	return
		(fcppt::format(FCPPT_TEXT("%1$u:%2$02u:%3$02u"))
			% minutes
			% seconds
			% static_cast<rep>(milliseconds/static_cast<rep>(10))).str();
}