Dimensional quantifiers

"There is both of light and dark inside C++. The important thing is to choose what we write. That's the real of C++."

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Dimensional quantifiers are defined as constexpr variables (templates) of dimensional_t.

For example,

inline constexpr meter_t meters;

template < std::intmax_t N = 1 >
inline constexpr powered_t<meter_t, N> meter;

If you do not specify the exponent (=1), use the plural dimension quantifiers, and if you specify it, use the singular dimension quantifiers with non-type template parameter.

pipe operator overload

Pipe operators are provided to attach units to values.

It is allowed to convert values into quantities by piping a value to dimensional quantifiers.

example

// begin example
#include <dimensional/quantity.hpp>
#include <dimensional/systems/si/all.hpp>

int main() {
    namespace si = mitama::systems::si;
    using mitama::quantity_t;

    // Template argument deduction for class templates
    quantity_t mass = 3 | si::kilograms; // 3 [kg]

    quantity_t time = 1.66 | si::seconds; // 1.66 [s]

    quantity_t volume = 4 | si::meter<3>; // 4 [m^3]
}
// end example

multiplication and division operators

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Multiplication and division operators for dimensional quantifiers are provided to make derived units.

// begin example
#include <dimensional/quantity.hpp>
#include <dimensional/systems/si/all.hpp>

int main() {
    namespace si = mitama::systems::si;
    using mitama::quantity_t;

    // Template argument deduction for class templates
    quantity_t density = 3 | si::kilograms / si::meter<3>; // 3 [kg / m^3]

    quantity_t speed = 1.2 | si::meters / si::seconds; // 1.2 [m / s]

    quantity_t accel = 4 | si::meters * si::second<-2>; // 4 [s / m^2]
}
// end example