feedc0de/mp-units
1
0
Fork 0
forked from mpusz/mp-units
Code Pull Requests Activity

feat: conversion from quantity_point to std::chrono::time_point added

Browse Source 
Refers #316
This commit is contained in:
Mateusz Pusz
2021-11-23 14:37:08 +01:00
parent af928dd0c7
commit 571df5ed33
3 changed files with 59 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/core/include/units/chrono.h
+11 -5
View File
@@ -47,8 +47,7 @@ struct quantity_point_like_traits<std::chrono::time_point<C, std::chrono::durati
using origin = clock_origin<C>;
using unit = downcast_unit<typename origin::dimension, ratio(Period::num, Period::den)>;
using rep = Rep;
[[nodiscard]] static constexpr auto relative(
const std::chrono::time_point<C, std::chrono::duration<Rep, Period>>& qp) {
[[nodiscard]] static constexpr auto relative(const std::chrono::time_point<C, std::chrono::duration<Rep, Period>>& qp) {
return qp.time_since_epoch();
}
};
@@ -84,10 +83,17 @@ constexpr auto to_std_ratio_impl()
template<auto R>
using to_std_ratio = decltype(detail::to_std_ratio_impl<R>());
template<QuantityOf<isq::si::dim_time> Q>
constexpr auto to_std_duration(const Q& q)
template<typename U, typename Rep>
[[nodiscard]] constexpr auto to_std_duration(const quantity<isq::si::dim_time, U, Rep>& q)
{
return std::chrono::duration<typename Q::rep, to_std_ratio<Q::unit::ratio>>(q.number());
return std::chrono::duration<Rep, to_std_ratio<U::ratio>>(q.number());
}
template<typename C, typename U, typename Rep>
[[nodiscard]] constexpr auto to_std_time_point(const quantity_point<clock_origin<C>, U, Rep>& qp)
{
using ret_type = std::chrono::time_point<C, std::chrono::duration<Rep, to_std_ratio<U::ratio>>>;
return ret_type(to_std_duration(qp.relative()));
}
} // namespace units