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xo-unit: + constexpr implementation (runtime+compiletime)

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Roland Conybeare 2024-04-22 14:53:57 -04:00
commit 5bde1bfb94
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include/xo/unit/quantity2_concept.hpp Normal file
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/** @file quantity2_concept.hpp **/
#pragma once
#include "unit_concept.hpp"
#include "numeric_concept.hpp"
namespace xo {
namespace unit {
template <typename Quantity>
concept quantity2_concept = requires(Quantity qty, typename Quantity::repr_type repr)
{
typename Quantity::unit_type;
typename Quantity::repr_type;
{ qty.scale() } -> std::same_as<typename Quantity::repr_type>;
//{ Quantity::unit_cstr() } -> std::same_as<char const *>;
//{ Quantity::unit_quantity() } -> std::same_as<Quantity>;
//{ Quantity::promote(repr) } -> std::same_as<Quantity>;
} && (true //unit_concept<typename Quantity::unit_type>
&& numeric_concept<typename Quantity::repr_type>);
} /*namespace unit*/
} /*namespace xo*/