Roland Conybeare
d1fa15f248
git-subtree-dir: xo-unit git-subtree-mainline:e9ee6992cagit-subtree-split:b531e382c2
30 lines
730 B
C++
30 lines
730 B
C++
/** @file ex4.cpp **/
|
|
|
|
#include "xo/unit/quantity.hpp"
|
|
#include "xo/unit/quantity_iostream.hpp"
|
|
#include <iostream>
|
|
|
|
int
|
|
main () {
|
|
namespace q = xo::qty::qty;
|
|
|
|
auto t1 = q::milliseconds(1);
|
|
auto t2 = q::minutes(1);
|
|
|
|
auto r1 = t1 / with_repr<double>(t2);
|
|
|
|
static_assert(r1.is_dimensionless());
|
|
static_assert(!t2.is_dimensionless());
|
|
|
|
static_assert(std::same_as<decltype(static_cast<double>(r1)), double>);
|
|
|
|
/* r1_value: assignment compiles, since r1 dimensionless */
|
|
double r1_value = r1;
|
|
|
|
/* r2_value: assignment won't compile, 'cannot convert' error */
|
|
//double r2_value = t2;
|
|
|
|
std::cerr << "t1: " << t1 << ", t2: " << t2 << ", t1/t2: " << r1 << std::endl;
|
|
}
|
|
|
|
/** end ex4.cpp */
|