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xo-unit: multiply, volatility units, share operators

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This commit is contained in:
Roland Conybeare 2024-05-01 23:04:14 -04:00
commit eb63f5fdc8
6 changed files with 212 additions and 47 deletions
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8
include/xo/unit/natural_unit.hpp
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@ -65,8 +65,9 @@ namespace xo {
public:
constexpr natural_unit() : n_bpu_{0} {}
static constexpr natural_unit from_bu(basis_unit bu) {
return detail::nu_maker<Int>::make_nu(make_unit_power<Int>(bu));
static constexpr natural_unit from_bu(basis_unit bu,
power_ratio_type power = power_ratio_type(1)) {
return detail::nu_maker<Int>::make_nu(bpu<Int>(bu, power));
}
constexpr std::size_t n_bpu() const { return n_bpu_; }
@ -399,6 +400,9 @@ namespace xo {
constexpr auto currency = natural_unit<std::int64_t>::from_bu(bu::currency);
constexpr auto price = natural_unit<std::int64_t>::from_bu(bu::price);
constexpr auto volatility_250d = natural_unit<std::int64_t>::from_bu(bu::year250, power_ratio_type(-1,2));
constexpr auto volatility_360d = natural_unit<std::int64_t>::from_bu(bu::year360, power_ratio_type(-1,2));
} /*namespace nu*/
} /*namespace qty*/
} /*namespace xo*/