243 lines
9.1 KiB
C++
243 lines
9.1 KiB
C++
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//---------------------------------------------------------------------------//
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// Copyright (c) 2013 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_FUNCTIONAL_HPP
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#define BOOST_COMPUTE_LAMBDA_FUNCTIONAL_HPP
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#include <boost/tuple/tuple.hpp>
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#include <boost/lexical_cast.hpp>
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#include <boost/proto/core.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/preprocessor/stringize.hpp>
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#include <boost/compute/functional/get.hpp>
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#include <boost/compute/lambda/result_of.hpp>
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#include <boost/compute/lambda/placeholder.hpp>
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namespace boost {
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namespace compute {
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namespace lambda {
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namespace mpl = boost::mpl;
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namespace proto = boost::proto;
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// wraps a unary boolean function
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#define BOOST_COMPUTE_LAMBDA_WRAP_BOOLEAN_UNARY_FUNCTION(name) \
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namespace detail { \
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struct BOOST_PP_CAT(name, _func) \
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{ \
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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 int type; \
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}; \
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\
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template<class Context, class Arg> \
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static void apply(Context &ctx, const Arg &arg) \
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{ \
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ctx.stream << #name << "("; \
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proto::eval(arg, ctx); \
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ctx.stream << ")"; \
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} \
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}; \
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} \
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template<class Arg> \
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inline typename proto::result_of::make_expr< \
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proto::tag::function, BOOST_PP_CAT(detail::name, _func), const Arg& \
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>::type const \
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name(const Arg &arg) \
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{ \
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return proto::make_expr<proto::tag::function>( \
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BOOST_PP_CAT(detail::name, _func)(), ::boost::ref(arg) \
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); \
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}
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// wraps a unary function who's return type is the same as the argument type
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#define BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(name) \
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namespace detail { \
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struct BOOST_PP_CAT(name, _func) \
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{ \
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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 proto::result_of::child_c<Expr, 1>::type Arg1; \
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typedef typename ::boost::compute::lambda::result_of<Arg1, Args>::type type; \
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}; \
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\
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template<class Context, class Arg> \
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static void apply(Context &ctx, const Arg &arg) \
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{ \
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ctx.stream << #name << "("; \
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proto::eval(arg, ctx); \
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ctx.stream << ")"; \
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} \
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}; \
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} \
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template<class Arg> \
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inline typename proto::result_of::make_expr< \
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proto::tag::function, BOOST_PP_CAT(detail::name, _func), const Arg& \
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>::type const \
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name(const Arg &arg) \
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{ \
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return proto::make_expr<proto::tag::function>( \
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BOOST_PP_CAT(detail::name, _func)(), ::boost::ref(arg) \
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); \
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}
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// wraps a binary function
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#define BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION(name) \
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namespace detail { \
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struct BOOST_PP_CAT(name, _func) \
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{ \
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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 proto::result_of::child_c<Expr, 1>::type Arg1; \
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typedef typename ::boost::compute::lambda::result_of<Arg1, Args>::type type; \
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}; \
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\
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template<class Context, class Arg1, class Arg2> \
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static void apply(Context &ctx, const Arg1 &arg1, const Arg2 &arg2) \
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{ \
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ctx.stream << #name << "("; \
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proto::eval(arg1, ctx); \
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ctx.stream << ", "; \
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proto::eval(arg2, ctx); \
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ctx.stream << ")"; \
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} \
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}; \
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} \
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template<class Arg1, class Arg2> \
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inline typename proto::result_of::make_expr< \
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proto::tag::function, BOOST_PP_CAT(detail::name, _func), const Arg1&, const Arg2& \
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>::type const \
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name(const Arg1 &arg1, const Arg2 &arg2) \
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{ \
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return proto::make_expr<proto::tag::function>( \
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BOOST_PP_CAT(detail::name, _func)(), ::boost::ref(arg1), ::boost::ref(arg2) \
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); \
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}
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// wraps a binary function who's result type is the scalar type of the first argument
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#define BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION_ST(name) \
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namespace detail { \
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struct BOOST_PP_CAT(name, _func) \
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{ \
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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 proto::result_of::child_c<Expr, 1>::type Arg1; \
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typedef typename ::boost::compute::lambda::result_of<Arg1, Args>::type result_type; \
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typedef typename ::boost::compute::scalar_type<result_type>::type type; \
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}; \
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\
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template<class Context, class Arg1, class Arg2> \
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static void apply(Context &ctx, const Arg1 &arg1, const Arg2 &arg2) \
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{ \
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ctx.stream << #name << "("; \
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proto::eval(arg1, ctx); \
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ctx.stream << ", "; \
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proto::eval(arg2, ctx); \
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ctx.stream << ")"; \
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} \
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}; \
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} \
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template<class Arg1, class Arg2> \
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inline typename proto::result_of::make_expr< \
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proto::tag::function, BOOST_PP_CAT(detail::name, _func), const Arg1&, const Arg2& \
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>::type const \
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name(const Arg1 &arg1, const Arg2 &arg2) \
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{ \
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return proto::make_expr<proto::tag::function>( \
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BOOST_PP_CAT(detail::name, _func)(), ::boost::ref(arg1), ::boost::ref(arg2) \
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); \
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}
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// wraps a ternary function
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#define BOOST_COMPUTE_LAMBDA_WRAP_TERNARY_FUNCTION(name) \
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namespace detail { \
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struct BOOST_PP_CAT(name, _func) \
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{ \
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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 proto::result_of::child_c<Expr, 1>::type Arg1; \
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typedef typename ::boost::compute::lambda::result_of<Arg1, Args>::type type; \
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}; \
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\
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template<class Context, class Arg1, class Arg2, class Arg3> \
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static void apply(Context &ctx, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3) \
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{ \
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ctx.stream << #name << "("; \
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proto::eval(arg1, ctx); \
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ctx.stream << ", "; \
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proto::eval(arg2, ctx); \
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ctx.stream << ", "; \
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proto::eval(arg3, ctx); \
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ctx.stream << ")"; \
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} \
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}; \
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} \
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template<class Arg1, class Arg2, class Arg3> \
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inline typename proto::result_of::make_expr< \
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proto::tag::function, BOOST_PP_CAT(detail::name, _func), const Arg1&, const Arg2&, const Arg3& \
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>::type const \
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name(const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3) \
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{ \
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return proto::make_expr<proto::tag::function>( \
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BOOST_PP_CAT(detail::name, _func)(), ::boost::ref(arg1), ::boost::ref(arg2), ::boost::ref(arg3) \
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); \
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}
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BOOST_COMPUTE_LAMBDA_WRAP_BOOLEAN_UNARY_FUNCTION(all)
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BOOST_COMPUTE_LAMBDA_WRAP_BOOLEAN_UNARY_FUNCTION(any)
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BOOST_COMPUTE_LAMBDA_WRAP_BOOLEAN_UNARY_FUNCTION(isinf)
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BOOST_COMPUTE_LAMBDA_WRAP_BOOLEAN_UNARY_FUNCTION(isnan)
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BOOST_COMPUTE_LAMBDA_WRAP_BOOLEAN_UNARY_FUNCTION(isfinite)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(abs)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(cos)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(acos)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(sin)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(asin)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(tan)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(atan)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(sqrt)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(rsqrt)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(exp)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(exp2)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(exp10)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(log)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(log2)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(log10)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(round)
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BOOST_COMPUTE_LAMBDA_WRAP_UNARY_FUNCTION_T(length)
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BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION(cross)
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BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION(pow)
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BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION(pown)
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BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION(powr)
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BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION_ST(dot)
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BOOST_COMPUTE_LAMBDA_WRAP_BINARY_FUNCTION_ST(distance)
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BOOST_COMPUTE_LAMBDA_WRAP_TERNARY_FUNCTION(clamp)
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BOOST_COMPUTE_LAMBDA_WRAP_TERNARY_FUNCTION(fma)
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BOOST_COMPUTE_LAMBDA_WRAP_TERNARY_FUNCTION(mad)
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BOOST_COMPUTE_LAMBDA_WRAP_TERNARY_FUNCTION(smoothstep)
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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_FUNCTIONAL_HPP
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