/usr/include/boost/parameter/aux_/pp_impl
Edit: /usr/include/boost/parameter/aux_/pp_impl/unwrap_predicate.hpp (2846B)
// Copyright Daniel Wallin 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_PP_IMPL_UNWRAP_PREDICATE_HPP
#define BOOST_PARAMETER_AUX_PP_IMPL_UNWRAP_PREDICATE_HPP
namespace boost { namespace parameter { namespace aux {
// Given Match, which is "void x" where x is an argument matching
// criterion, extract a corresponding MPL predicate.
template
struct unwrap_predicate;
}}} // namespace boost::parameter::aux
#include
namespace boost { namespace parameter { namespace aux {
// Match anything
template <>
struct unwrap_predicate
{
typedef ::boost::parameter::aux::always_true_predicate type;
};
}}} // namespace boost::parameter::aux
#include
#if BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x580))
#include
#endif
namespace boost { namespace parameter { namespace aux {
// A matching predicate is explicitly specified.
#if BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x580))
template
struct unwrap_predicate< ::boost::parameter::aux::voidstar(Predicate)>
{
typedef Predicate type;
};
#else
template
struct unwrap_predicate
{
typedef Predicate type;
};
#endif // SunProCC workarounds needed.
}}} // namespace boost::parameter::aux
#include
#include
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
#include
#else
#include
#include
#endif
namespace boost { namespace parameter { namespace aux {
// A type to which the argument is supposed to be convertible is
// specified.
template
struct unwrap_predicate
{
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
struct type
{
template
struct apply
: ::boost::mpl::if_<
::std::is_convertible
, ::boost::mpl::true_
, ::boost::mpl::false_
>
{
};
template
using fn = ::std::is_convertible;
};
#else
typedef ::boost::mpl::if_<
::boost::is_convertible< ::boost::mpl::_,Target>
, ::boost::mpl::true_
, ::boost::mpl::false_
> type;
#endif // BOOST_PARAMETER_CAN_USE_MP11
};
}}} // namespace boost::parameter::aux
#endif // include guard