printable_concept.h

#ifndef PASTELSYS_PRINTABLE_CONCEPT_H
#define PASTELSYS_PRINTABLE_CONCEPT_H

#include "pastel/sys/concept/concept.h"

#include <string>

// See concept.txt for why native types must be 
// defined _before_ the concept.
#include "pastel/sys/printable/native_printable.h"

namespace Pastel
{

    template <typename T>
    concept Printable_Concept_ = requires(T t) {
        {asString(t)} -> std::convertible_to<std::string>;
    };

    template <typename T>
    concept Printable_Concept =
        Printable_Concept_<RemoveCvRef<T>>;

    using Printable_Archetype = integer;

}

#endif