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xo-unit: simplify-api: represent quantity<> unit using scaled_unit<>

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This commit is contained in:
Roland Conybeare 2024-05-07 15:07:22 -04:00
commit aad6bd50e8
5 changed files with 155 additions and 90 deletions
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35
utest/quantity.test.cpp
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@ -319,7 +319,7 @@ namespace xo {
constexpr auto ng = qty::nanograms(1.0);
constexpr auto ug = qty::micrograms(1.0);
constexpr auto ng_in_pg = ng.rescale<pg.unit()>();
constexpr auto ng_in_pg = ng.rescale_ext<pg.unit()>();
static_assert(ng_in_pg.scale() == 1000);
static_assert(ng_in_pg == pg * 1000);
@ -375,19 +375,21 @@ namespace xo {
constexpr auto ms = qty::milliseconds(1.0);
/* proof that ms.s_unit is constexpr */
static_assert(ms.s_unit.n_bpu() == 1);
static_assert(ms.s_scaled_unit.n_bpu() == 1);
/* proof that ms.unit() is constexpr */
static_assert(ms.unit().n_bpu() == 1);
constexpr auto rr = detail::su_product<decltype(ms)::ratio_int_type, decltype(ms)::ratio_int2x_type>(ms.unit(), ms.unit());
constexpr auto rr = detail::su_product<decltype(ms)::ratio_int_type,
decltype(ms)::ratio_int2x_type>(ms.unit().natural_unit_,
ms.unit().natural_unit_);
/* proof that detail::su_product<..>(..) return value is constexpr */
static_assert(rr.outer_scale_sq_ == 1.0);
static_assert(rr.outer_scale_factor_.template convert_to<decltype(ms)::repr_type>() == 1.0);
static_assert(rr.natural_unit_.n_bpu() == 1);
constexpr auto q1 = quantity<rr.natural_unit_,
constexpr auto q1 = quantity<detail::make_unit_rescale_result<decltype(ms)::ratio_int_type>(rr.natural_unit_),
decltype(ms)::repr_type>(ms.scale() * ms.scale());
/* proof that q is constexpr */
@ -400,7 +402,8 @@ namespace xo {
using r_int2x_type = std::common_type_t<decltype(ms)::ratio_int2x_type,
decltype(ms)::ratio_int2x_type>;
constexpr auto rr = detail::su_product<r_int_type, r_int2x_type>(ms.unit(), ms.unit());
constexpr auto rr = detail::su_product<r_int_type, r_int2x_type>(ms.unit().natural_unit_,
ms.unit().natural_unit_);
static_assert(rr.outer_scale_sq_ == 1.0);
}
@ -428,15 +431,15 @@ namespace xo {
constexpr auto r_qty = ng * 7.55;
static_assert(l_qty.unit().n_bpu() == 1);
static_assert(l_qty.unit().bpu_v_[0].native_dim() == dim::mass);
static_assert(l_qty.unit().bpu_v_[0].power() == xo::ratio::ratio(1,1));
static_assert(l_qty.unit().bpu_v_[0].scalefactor() == xo::ratio::ratio(1,1000000000));
static_assert(l_qty.unit()[0].native_dim() == dim::mass);
static_assert(l_qty.unit()[0].power() == xo::ratio::ratio(1,1));
static_assert(l_qty.unit()[0].scalefactor() == xo::ratio::ratio(1,1000000000));
static_assert(l_qty.scale() == 7.55);
static_assert(r_qty.unit().n_bpu() == 1);
static_assert(r_qty.unit().bpu_v_[0].native_dim() == dim::mass);
static_assert(r_qty.unit().bpu_v_[0].power() == xo::ratio::ratio(1,1));
static_assert(r_qty.unit().bpu_v_[0].scalefactor() == xo::ratio::ratio(1,1000000000));
static_assert(r_qty.unit()[0].native_dim() == dim::mass);
static_assert(r_qty.unit()[0].power() == xo::ratio::ratio(1,1));
static_assert(r_qty.unit()[0].scalefactor() == xo::ratio::ratio(1,1000000000));
static_assert(r_qty.scale() == 7.55);
}
@ -444,20 +447,21 @@ namespace xo {
constexpr auto ms = qty::milliseconds(1.0);
/* proof that ms.s_unit is constexpr */
static_assert(ms.s_unit.n_bpu() == 1);
static_assert(ms.s_scaled_unit.n_bpu() == 1);
/* proof that ms.unit() is constexpr */
static_assert(ms.unit().n_bpu() == 1);
constexpr auto rr = detail::su_ratio<decltype(ms)::ratio_int_type,
decltype(ms)::ratio_int2x_type>(ms.unit(), ms.unit());
decltype(ms)::ratio_int2x_type>(ms.unit().natural_unit_,
ms.unit().natural_unit_);
/* proof that detail::su_product<..>(..) return value is constexpr */
static_assert(rr.outer_scale_sq_ == 1.0);
static_assert(rr.outer_scale_factor_.template convert_to<decltype(ms)::repr_type>() == 1.0);
static_assert(rr.natural_unit_.n_bpu() == 0);
constexpr auto q1 = quantity<rr.natural_unit_,
constexpr auto q1 = quantity<detail::make_unit_rescale_result<decltype(ms)::ratio_int_type>(rr.natural_unit_),
decltype(ms)::repr_type>(ms.scale() * ms.scale());
/* proof that q is constexpr */
@ -470,7 +474,8 @@ namespace xo {
using r_int2x_type = std::common_type_t<decltype(ms)::ratio_int2x_type,
decltype(ms)::ratio_int2x_type>;
constexpr auto rr = detail::su_ratio<r_int_type, r_int2x_type>(ms.unit(), ms.unit());
constexpr auto rr = detail::su_ratio<r_int_type, r_int2x_type>(ms.unit().natural_unit_,
ms.unit().natural_unit_);
static_assert(rr.outer_scale_sq_ == 1.0);
}