formatable.hpp

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#pragma once
#include "stream_insertable.hpp"
#include "iformatable.hpp"
#include <type_traits>

namespace xtd {
  template<class value_t>
  concept formatable = std::derived_from<std::remove_cvref_t<value_t>, xtd::iformatable> || xtd::stream_insertable<std::remove_cvref_t<value_t>>;
}