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Contents
// Copyright David Abrahams 2006.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_PARENTHESIZED_TYPE_HPP
#define BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_PARENTHESIZED_TYPE_HPP
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
Version data entries
14 entries across 14 versions & 1 rubygems