mirror/meta_prog/nil_term_pack.hpp

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#ifndef MIRROR_META_PROG_NIL_TERM_PACK_1105050854_HPP
#define MIRROR_META_PROG_NIL_TERM_PACK_1105050854_HPP

#include <mirror/meta_prog/not.hpp>
#include <mirror/meta_prog/only_if.hpp>
#include <mirror/meta_prog/lambda.hpp>
#include <mirror/meta_prog/nil_type.hpp>

MIRROR_NAMESPACE_BEGIN
namespace mp {

template <typename T>
struct is_pack_nil_type
{
    typedef std::false_type type;
};

template <>
struct is_pack_nil_type<nil_t>
{
    typedef std::true_type type;
};

template <typename Range>
struct remove_nil_types
{
    typedef typename mirror::mp::only_if<
        Range,
        not_<is_pack_nil_type<arg<1> > >
    >::type type;
};

} // namespace mp
MIRROR_NAMESPACE_END

#endif //include guard