37 lines
1,012 B
C++
37 lines
1,012 B
C++
/** @file quantity_ops.hpp
|
|
*
|
|
* Author: Roland Conybeare
|
|
**/
|
|
|
|
#pragma once
|
|
|
|
#include "quantity_concept.hpp"
|
|
|
|
namespace xo {
|
|
namespace qty {
|
|
/** note: won't have constexpr result until c++26 (when ::sqrt(), ::pow() are constexpr)
|
|
**/
|
|
template <typename Quantity, typename Quantity2>
|
|
requires quantity_concept<Quantity> && quantity_concept<Quantity2>
|
|
constexpr auto
|
|
operator== (const Quantity & x, const Quantity2 & y)
|
|
{
|
|
return (Quantity::compare(x, y) == 0);
|
|
}
|
|
|
|
/** note: won't have constexpr result until c++26 (when ::sqrt(), ::pow() are constexpr)
|
|
**/
|
|
template <typename Quantity, typename Quantity2>
|
|
requires quantity_concept<Quantity> && quantity_concept<Quantity2>
|
|
constexpr auto
|
|
operator<=> (const Quantity & x, const Quantity2 & y)
|
|
{
|
|
return Quantity::compare(x, y);
|
|
}
|
|
|
|
} /*namespace qty*/
|
|
|
|
} /*namespace xo*/
|
|
|
|
|
|
/** end quantity_ops.hpp **/
|