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// Copyright David Abrahams 2006.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at


namespace boost { namespace parameter { namespace aux {

    // A metafunction that transforms void(*)(T) -> T
    template <typename UnaryFunctionPointer>
    struct unaryfunptr_arg_type;

    template <typename Arg>
    struct unaryfunptr_arg_type<void(*)(Arg)>
        typedef Arg type;

    template <>
    struct unaryfunptr_arg_type<void(*)(void)>
        typedef void type;
}}} // namespace boost::parameter::aux

// A macro that takes a parenthesized C++ type name (T) and transforms it
// into an un-parenthesized type expression equivalent to T.
#define BOOST_PARAMETER_PARENTHESIZED_TYPE(x)                                \
    ::boost::parameter::aux::unaryfunptr_arg_type< void(*)x >::type

#endif  // include guard