FM / parameter

/usr/include/boost/parameter

Name	Size	Mode	Actions
aux_/	-	0755	rm
are_tagged_arguments.hpp	4812	0644	edit dl rm
binding.hpp	5513	0644	edit dl rm
compose.hpp	8422	0644	edit dl rm
config.hpp	3747	0644	edit dl rm
deduced.hpp	3587	0644	edit dl rm
is_argument_pack.hpp	836	0644	edit dl rm
keyword.hpp	28188	0644	edit dl rm
keyword_fwd.hpp	671	0644	edit dl rm
macros.hpp	11569	0644	edit dl rm
match.hpp	1849	0644	edit dl rm
name.hpp	5799	0644	edit dl rm
nested_keyword.hpp	7208	0644	edit dl rm
optional.hpp	1897	0644	edit dl rm
parameters.hpp	21367	0644	edit dl rm
preprocessor.hpp	11113	0644	edit dl rm
preprocessor_no_spec.hpp	3673	0644	edit dl rm
python.hpp	19048	0644	edit dl rm
required.hpp	1834	0644	edit dl rm
template_keyword.hpp	3287	0644	edit dl rm
value_type.hpp	5530	0644	edit dl rm

Edit: /usr/include/boost/parameter/optional.hpp (1897B)

#ifndef BOOST_PARAMETER_OPTIONAL_HPP
#define BOOST_PARAMETER_OPTIONAL_HPP

#include <boost/parameter/aux_/use_default.hpp>

namespace boost { namespace parameter {

// This metafunction can be used to describe the treatment of particular
    // named parameters for the purposes of overload elimination with SFINAE,
    // by placing specializations in the parameters<...> list.  In order for
    // a treated function to participate in overload resolution:
    //
    //   - The actual argument type matched by every keyword tag
    //     associated with a predicate must satisfy that predicate
    //
    //   - If a keyword k is specified without an optional<...> or
    //     required<...> wrapper, it is treated as though
    //     optional<k> were specified.
    template <
        typename Tag
      , typename Predicate = ::boost::parameter::aux::use_default
    >
    struct optional
    {
        typedef Tag key_type;
        typedef Predicate predicate;
    };
}}

#include <boost/parameter/config.hpp>

#if defined(BOOST_PARAMETER_CAN_USE_MP11)
#include <boost/mp11/integral.hpp>
#else
#include <boost/mpl/bool.hpp>
#endif

namespace boost { namespace parameter { namespace aux {

template <typename T>
    struct is_optional
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
      : ::boost::mp11::mp_false
#else
      : ::boost::mpl::false_
#endif
    {
    };

template <typename Tag, typename Predicate>
    struct is_optional< ::boost::parameter::optional<Tag,Predicate> >
#if defined(BOOST_PARAMETER_CAN_USE_MP11)
      : ::boost::mp11::mp_true
#else
      : ::boost::mpl::true_
#endif
    {
    };
}}} // namespace boost::parameter::aux

#endif  // include guard

// Copyright David Abrahams, Daniel Wallin 2003. // 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_OPTIONAL_HPP #define BOOST_PARAMETER_OPTIONAL_HPP #include namespace boost { namespace parameter { // This metafunction can be used to describe the treatment of particular // named parameters for the purposes of overload elimination with SFINAE, // by placing specializations in the parameters<...> list. In order for // a treated function to participate in overload resolution: // // - The actual argument type matched by every keyword tag // associated with a predicate must satisfy that predicate // // - If a keyword k is specified without an optional<...> or // required<...> wrapper, it is treated as though // optional were specified. template < typename Tag , typename Predicate = ::boost::parameter::aux::use_default > struct optional { typedef Tag key_type; typedef Predicate predicate; }; }} #include #if defined(BOOST_PARAMETER_CAN_USE_MP11) #include #else #include #endif namespace boost { namespace parameter { namespace aux { template struct is_optional #if defined(BOOST_PARAMETER_CAN_USE_MP11) : ::boost::mp11::mp_false #else : ::boost::mpl::false_ #endif { }; template struct is_optional< ::boost::parameter::optional > #if defined(BOOST_PARAMETER_CAN_USE_MP11) : ::boost::mp11::mp_true #else : ::boost::mpl::true_ #endif { }; }}} // namespace boost::parameter::aux #endif // include guard