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54 lines
1.7 KiB
54 lines
1.7 KiB
#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
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#include <boost/proto/context/detail/preprocessed/null_eval.hpp> |
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#elif !defined(BOOST_PP_IS_ITERATING) |
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#define BOOST_PROTO_EVAL_N(Z, N, DATA) \ |
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proto::eval(proto::child_c<N>(expr), ctx); \ |
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/**/ |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/null_eval.hpp") |
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#endif |
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/////////////////////////////////////////////////////////////////////////////// |
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/// \file null_eval.hpp |
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/// Contains specializations of the null_eval\<\> class template. |
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// |
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// Copyright 2008 Eric Niebler. Distributed under the Boost |
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// Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(preserve: 1) |
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#endif |
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#define BOOST_PP_ITERATION_PARAMS_1 \ |
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(3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/context/detail/null_eval.hpp>)) |
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#include BOOST_PP_ITERATE() |
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) |
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#pragma wave option(output: null) |
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#endif |
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#undef BOOST_PROTO_EVAL_N |
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#else |
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#define N BOOST_PP_ITERATION() |
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template<typename Expr, typename Context> |
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struct null_eval<Expr, Context, N> |
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{ |
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typedef void result_type; |
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void operator ()(Expr &expr, Context &ctx) const |
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{ |
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BOOST_PP_REPEAT(N, BOOST_PROTO_EVAL_N, ~) |
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} |
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}; |
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#undef N |
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#endif
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