You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.8 KiB
47 lines
1.8 KiB
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
|
|
|
|
#include <boost/proto/transform/detail/preprocessed/expand_pack.hpp>
|
|
|
|
#elif !defined(BOOST_PP_IS_ITERATING)
|
|
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
|
#pragma wave option(preserve: 2, line: 0, output: "preprocessed/expand_pack.hpp")
|
|
#endif
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
/// \file expand_pack.hpp
|
|
/// Contains helpers for pseudo-pack expansion.
|
|
//
|
|
// Copyright 2012 Eric Niebler. 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)
|
|
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
|
#pragma wave option(preserve: 1)
|
|
#endif
|
|
|
|
#define BOOST_PP_ITERATION_PARAMS_1 \
|
|
(3, (0, BOOST_PROTO_MAX_ARITY, <boost/proto/transform/detail/expand_pack.hpp>))
|
|
#include BOOST_PP_ITERATE()
|
|
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
|
#pragma wave option(output: null)
|
|
#endif
|
|
|
|
#else
|
|
#define N BOOST_PP_ITERATION()
|
|
#define M0(Z, X, DATA) typename expand_pattern_helper<Tfx, BOOST_PP_CAT(A, X)>::type
|
|
#define M1(Z, X, DATA) expand_pattern_helper<Tfx, BOOST_PP_CAT(A, X)>::applied::value ||
|
|
|
|
template<typename Tfx, typename Ret BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
|
|
struct expand_pattern_helper<Tfx, Ret(BOOST_PP_ENUM_PARAMS(N, A))>
|
|
{
|
|
typedef Ret (*type)(BOOST_PP_ENUM(N, M0, ~));
|
|
typedef mpl::bool_<BOOST_PP_REPEAT(N, M1, ~) false> applied;
|
|
};
|
|
|
|
#undef M1
|
|
#undef M0
|
|
#undef N
|
|
#endif
|