exists.h

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#pragma once

#include <type_traits>
#include <scl/tools/meta/void_t.h>

namespace scl{
    namespace tools{
        namespace meta{
            namespace details{
                template <class T, class = void>
                struct __exists : std::false_type{};

                template <class T>
                struct __exists<T, void_t<T>> : std::true_type{};
            }

            template <class T>
            inline constexpr bool exists(){
                return details::__exists<T>::value;
            }
        }
    }
}