stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork
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//---------------------------------------------------------------------------//
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// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
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//
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// Distributed under the Boost Software License, Version 1.0
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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// See http://boostorg.github.com/compute for more information.
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//---------------------------------------------------------------------------//
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#ifndef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_HPP
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_HPP
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#include <boost/preprocessor/repetition.hpp>
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#include <boost/compute/config.hpp>
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#include <boost/compute/types/tuple.hpp>
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namespace boost {
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namespace compute {
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namespace lambda {
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namespace detail {
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// function wrapper for make_tuple() in lambda expressions
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struct make_tuple_func
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{
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template<class Expr, class Args, int N>
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struct make_tuple_result_type;
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#define BOOST_COMPUTE_MAKE_TUPLE_RESULT_GET_ARG(z, n, unused) \
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typedef typename proto::result_of::child_c<Expr, BOOST_PP_INC(n)>::type BOOST_PP_CAT(Arg, n);
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#define BOOST_COMPUTE_MAKE_TUPLE_RESULT_GET_ARG_TYPE(z, n, unused) \
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typedef typename lambda::result_of<BOOST_PP_CAT(Arg, n), Args>::type BOOST_PP_CAT(T, n);
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#define BOOST_COMPUTE_MAKE_TUPLE_RESULT_TYPE(z, n, unused) \
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template<class Expr, class Args> \
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struct make_tuple_result_type<Expr, Args, n> \
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{ \
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BOOST_PP_REPEAT(n, BOOST_COMPUTE_MAKE_TUPLE_RESULT_GET_ARG, ~) \
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BOOST_PP_REPEAT(n, BOOST_COMPUTE_MAKE_TUPLE_RESULT_GET_ARG_TYPE, ~) \
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typedef boost::tuple<BOOST_PP_ENUM_PARAMS(n, T)> type; \
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};
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BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_MAKE_TUPLE_RESULT_TYPE, ~)
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#undef BOOST_COMPUTE_MAKE_TUPLE_RESULT_GET_ARG
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#undef BOOST_COMPUTE_MAKE_TUPLE_RESULT_GET_ARG_TYPE
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#undef BOOST_COMPUTE_MAKE_TUPLE_RESULT_TYPE
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template<class Expr, class Args>
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struct lambda_result
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{
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typedef typename make_tuple_result_type<
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Expr, Args, proto::arity_of<Expr>::value - 1
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>::type type;
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};
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#define BOOST_COMPUTE_MAKE_TUPLE_GET_ARG_TYPE(z, n, unused) \
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typedef typename lambda::result_of< \
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BOOST_PP_CAT(Arg, n), typename Context::args_tuple \
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>::type BOOST_PP_CAT(T, n);
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY_ARG(z, n, unused) \
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BOOST_PP_COMMA_IF(n) BOOST_PP_CAT(const Arg, n) BOOST_PP_CAT(&arg, n)
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY_EVAL_ARG(z, n, unused) \
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BOOST_PP_EXPR_IF(n, ctx.stream << ", ";) proto::eval(BOOST_PP_CAT(arg, n), ctx);
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#define BOOST_COMPUTE_MAKE_TUPLE_APPLY(z, n, unused) \
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template<class Context, BOOST_PP_ENUM_PARAMS(n, class Arg)> \
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static void apply(Context &ctx, BOOST_PP_REPEAT(n, BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY_ARG, ~)) \
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{ \
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BOOST_PP_REPEAT(n, BOOST_COMPUTE_MAKE_TUPLE_GET_ARG_TYPE, ~) \
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typedef typename boost::tuple<BOOST_PP_ENUM_PARAMS(n, T)> tuple_type; \
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ctx.stream.template inject_type<tuple_type>(); \
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ctx.stream << "((" << type_name<tuple_type>() << "){"; \
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BOOST_PP_REPEAT(n, BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY_EVAL_ARG, ~) \
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ctx.stream << "})"; \
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}
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BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_MAKE_TUPLE_APPLY, ~)
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#undef BOOST_COMPUTE_MAKE_TUPLE_GET_ARG_TYPE
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY_ARG
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY_EVAL_ARG
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_APPLY
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};
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} // end detail namespace
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_ARG(z, n, unused) \
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BOOST_PP_COMMA_IF(n) BOOST_PP_CAT(const Arg, n) BOOST_PP_CAT(&arg, n)
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_ARG_TYPE(z, n, unused) \
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BOOST_PP_COMMA_IF(n) BOOST_PP_CAT(const Arg, n) &
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_REF_ARG(z, n, unused) \
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BOOST_PP_COMMA_IF(n) ::boost::ref(BOOST_PP_CAT(arg, n))
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#define BOOST_COMPUTE_LAMBDA_MAKE_TUPLE(z, n, unused) \
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template<BOOST_PP_ENUM_PARAMS(n, class Arg)> \
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inline typename proto::result_of::make_expr< \
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proto::tag::function, \
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detail::make_tuple_func, \
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BOOST_PP_REPEAT(n, BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_ARG_TYPE, ~) \
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>::type \
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make_tuple(BOOST_PP_REPEAT(n, BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_ARG, ~)) \
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{ \
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return proto::make_expr<proto::tag::function>( \
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detail::make_tuple_func(), \
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BOOST_PP_REPEAT(n, BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_REF_ARG, ~) \
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); \
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}
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BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_LAMBDA_MAKE_TUPLE, ~)
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_ARG
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_ARG_TYPE
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_REF_ARG
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#undef BOOST_COMPUTE_LAMBDA_MAKE_TUPLE
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} // end lambda namespace
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} // end compute namespace
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} // end boost namespace
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#endif // BOOST_COMPUTE_LAMBDA_MAKE_TUPLE_HPP
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