95 lines
3.7 KiB
C++
95 lines
3.7 KiB
C++
|
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
|
||
|
|
|
||
|
|
#include <boost/proto/detail/preprocessed/and_n.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/and_n.hpp")
|
||
|
|
#endif
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
/// \file and_n.hpp
|
||
|
|
/// Definitions of and_N, and_impl
|
||
|
|
//
|
||
|
|
// Copyright 2008 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, (2, BOOST_PP_MAX(BOOST_PROTO_MAX_ARITY, BOOST_PROTO_MAX_LOGICAL_ARITY), <boost/proto/detail/and_n.hpp>))
|
||
|
|
#include BOOST_PP_ITERATE()
|
||
|
|
|
||
|
|
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
|
||
|
|
#pragma wave option(output: null)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#else // BOOST_PP_IS_ITERATING
|
||
|
|
|
||
|
|
#define N BOOST_PP_ITERATION()
|
||
|
|
|
||
|
|
// Assymetry here between the handling of and_N and or_N because
|
||
|
|
// and_N is used by lambda_matches up to BOOST_PROTO_MAX_ARITY,
|
||
|
|
// regardless of how low BOOST_PROTO_MAX_LOGICAL_ARITY is.
|
||
|
|
template<bool B, BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(N), typename P)>
|
||
|
|
struct BOOST_PP_CAT(and_, N)
|
||
|
|
#if 2 == N
|
||
|
|
: mpl::bool_<P0::value>
|
||
|
|
{};
|
||
|
|
#else
|
||
|
|
: BOOST_PP_CAT(and_, BOOST_PP_DEC(N))<
|
||
|
|
P0::value BOOST_PP_COMMA_IF(BOOST_PP_SUB(N,2))
|
||
|
|
BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_DEC(N), P)
|
||
|
|
>
|
||
|
|
{};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
template<BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(N), typename P)>
|
||
|
|
struct BOOST_PP_CAT(and_, N)<false, BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(N), P)>
|
||
|
|
: mpl::false_
|
||
|
|
{};
|
||
|
|
|
||
|
|
#if N <= BOOST_PROTO_MAX_LOGICAL_ARITY
|
||
|
|
|
||
|
|
template<BOOST_PP_ENUM_PARAMS(N, typename G), typename Expr, typename State, typename Data>
|
||
|
|
struct _and_impl<proto::and_<BOOST_PP_ENUM_PARAMS(N, G)>, Expr, State, Data>
|
||
|
|
: proto::transform_impl<Expr, State, Data>
|
||
|
|
{
|
||
|
|
#define M0(Z, N, DATA) \
|
||
|
|
typedef \
|
||
|
|
typename proto::when<proto::_, BOOST_PP_CAT(G, N)> \
|
||
|
|
::template impl<Expr, State, Data> \
|
||
|
|
BOOST_PP_CAT(Gimpl, N); \
|
||
|
|
/**/
|
||
|
|
BOOST_PP_REPEAT(N, M0, ~)
|
||
|
|
#undef M0
|
||
|
|
|
||
|
|
typedef typename BOOST_PP_CAT(Gimpl, BOOST_PP_DEC(N))::result_type result_type;
|
||
|
|
|
||
|
|
result_type operator()(
|
||
|
|
typename _and_impl::expr_param e
|
||
|
|
, typename _and_impl::state_param s
|
||
|
|
, typename _and_impl::data_param d
|
||
|
|
) const
|
||
|
|
{
|
||
|
|
// Fix: jfalcou - 12/29/2010
|
||
|
|
// Avoid the use of comma operator here so as not to find Proto's
|
||
|
|
// by accident.
|
||
|
|
// expands to G0()(e,s,d); G1()(e,s,d); ... G{N-1}()(e,s,d);
|
||
|
|
#define M0(Z,N,DATA) BOOST_PP_CAT(Gimpl,N)()(e,s,d);
|
||
|
|
BOOST_PP_REPEAT(BOOST_PP_DEC(N),M0,~)
|
||
|
|
return BOOST_PP_CAT(Gimpl,BOOST_PP_DEC(N))()(e,s,d);
|
||
|
|
#undef M0
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#undef N
|
||
|
|
|
||
|
|
#endif
|