mpusz/mp-units
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fix: pow, sqrt, and cbrt fixed for quantities

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Mateusz Pusz
2023-06-13 09:17:32 +03:00
parent 4330cabd59
commit c79a76ab8f
1 changed files with 5 additions and 7 deletions
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12
src/utility/include/mp-units/math.h
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@ -51,17 +51,17 @@ namespace mp_units {
*/
template<std::intmax_t Num, std::intmax_t Den = 1, Quantity Q>
requires detail::non_zero<Den>
[[nodiscard]] constexpr auto pow(const Q& q) noexcept
[[nodiscard]] constexpr Quantity auto pow(const Q& q) noexcept
requires requires { pow(q.number(), 1.0); } || requires { std::pow(q.number(), 1.0); }
{
using rep = TYPENAME Q::rep;
if constexpr (Num == 0) {
return rep(1);
return make_quantity<pow<Num, Den>(Q::reference)>(rep(1));
} else if constexpr (ratio{Num, Den} == 1) {
return q;
} else {
using std::pow;
return make_quantity<reference<pow<Num, Den>(Q::quantity_spec), pow<Num, Den>(Q::unit)>{}>(
return make_quantity<pow<Num, Den>(Q::reference)>(
static_cast<rep>(pow(q.number(), static_cast<double>(Num) / static_cast<double>(Den))));
}
}
@ -80,8 +80,7 @@ template<Quantity Q>
{
using rep = TYPENAME Q::rep;
using std::sqrt;
return make_quantity<reference<pow<1, 2>(Q::quantity_spec), pow<1, 2>(Q::unit)>{}>(
static_cast<rep>(sqrt(q.number())));
return make_quantity<sqrt(Q::reference)>(static_cast<rep>(sqrt(q.number())));
}
/**
@ -98,8 +97,7 @@ template<Quantity Q>
{
using rep = TYPENAME Q::rep;
using std::cbrt;
return make_quantity<reference<pow<1, 3>(Q::quantity_spec), pow<1, 3>(Q::unit)>{}>(
static_cast<rep>(cbrt(q.number())));
return make_quantity<cbrt(Q::reference)>(static_cast<rep>(cbrt(q.number())));
}
/**