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type_template dimension_list
kwikius edited this page Aug 2, 2020
·
27 revisions
pqs::dimension_list<base_quantity_exponent...>
#include <pqs/concepts/associated/dimension_list.hpp
A list of base_quantity_exponents representing a dimension.
auto constexpr acc = abstract_length_v / pow<2>(abstract_time_v) ;
static_assert( dimension<decltype(acc)>);
static_assert( is_simple_dimension_list<decltype(acc)>);
// convert to fixed_string in the S.I. system using utf8 encoding
auto constexpr acc_str_si =
dimension_to_fixed_string<
si_measurement_system,charset_utf8
>(acc);
// convert to fixed_string in fps system
auto constexpr acc_str_fps =
dimension_to_fixed_string<
imperial_measurement_system,charset_utf8
>(acc);
std::cout << "acc_v1 dimension in S.I. = " << acc_str_si <<'\n';
std::cout << "acc_v1 dimension in f.p.s = " << acc_str_fps <<'\n';
auto constexpr acc_v2 = abstract_length_v * pow<-2>(abstract_time_v); // alternate form
static_assert( acc_v2 == acc );
example output : acc_v1 dimension in S.I. = m⋅s⁻²
acc_v1 dimension in f.p.s = ƒƫ⋅s⁻²
- A single element dimension_list is replaced by its element.
- A zero element dimension_list is replaced by dimensionless.
typename | type | notes |
---|---|---|
Dlist | dimension_list< base_quantity_exponent...> |
concept | notes |
---|---|
dimension< Dlist > |
type list functionality