/usr/include/boost/type_erasure/detail/null.hpp is in libboost1.55-dev 1.55.0+dfsg-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | // Boost.TypeErasure library
//
// Copyright 2012 Steven Watanabe
//
// 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)
//
// $Id: null.hpp 79190 2012-06-30 20:07:23Z steven_watanabe $
#if !defined(BOOST_PP_IS_ITERATING)
#ifndef BOOST_TYPE_ERASURE_DETAIL_NULL_HPP_INCLUDED
#define BOOST_TYPE_ERASURE_DETAIL_NULL_HPP_INCLUDED
#include <boost/throw_exception.hpp>
#include <boost/type_traits/remove_pointer.hpp>
#include <boost/preprocessor/iteration/iterate.hpp>
#include <boost/preprocessor/repetition/enum_params.hpp>
#include <boost/preprocessor/repetition/enum_trailing_params.hpp>
#include <boost/type_erasure/config.hpp>
#include <boost/type_erasure/exception.hpp>
namespace boost {
namespace type_erasure {
namespace detail {
template<class Sig>
struct null_throw;
template<class Concept>
struct get_null_vtable_entry {
typedef ::boost::type_erasure::detail::null_throw<
typename ::boost::remove_pointer<typename Concept::type>::type> type;
};
#define BOOST_PP_FILENAME_1 <boost/type_erasure/detail/null.hpp>
#define BOOST_PP_ITERATION_LIMITS (0, BOOST_TYPE_ERASURE_MAX_ARITY)
#include BOOST_PP_ITERATE()
}
}
}
#endif
#else
#define N BOOST_PP_ITERATION()
template<class R BOOST_PP_ENUM_TRAILING_PARAMS(N, class T)>
struct null_throw<R(BOOST_PP_ENUM_PARAMS(N, T))> {
static R value(BOOST_PP_ENUM_PARAMS(N, T)) {
BOOST_THROW_EXCEPTION(::boost::type_erasure::bad_function_call());
}
};
#undef N
#endif
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