60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// Copyright (c) 2001-2011 Hartmut Kaiser
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// Copyright (c) 2001-2011 Joel de Guzman
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_SPIRIT_KARMA_DETAIL_FAIL_FUNCTION_HPP
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#define BOOST_SPIRIT_KARMA_DETAIL_FAIL_FUNCTION_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/spirit/home/support/unused.hpp>
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#include <boost/config.hpp>
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namespace boost { namespace spirit { namespace karma { namespace detail
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{
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template <typename OutputIterator, typename Context, typename Delimiter>
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struct fail_function
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{
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typedef Context context_type;
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fail_function(OutputIterator& sink_, Context& context_
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, Delimiter const& delim_)
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: sink(sink_), ctx(context_), delim(delim_)
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{}
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template <typename Component, typename Attribute>
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bool operator()(Component const& component, Attribute const& attr) const
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{
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#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1600))
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(void)component; // suppresses warning: C4100: 'component' : unreferenced formal parameter
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#endif
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// return true if any of the generators fail
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return !component.generate(sink, ctx, delim, attr);
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}
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template <typename Component>
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bool operator()(Component const& component) const
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{
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#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1600))
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(void)component; // suppresses warning: C4100: 'component' : unreferenced formal parameter
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#endif
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// return true if any of the generators fail
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return !component.generate(sink, ctx, delim, unused);
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}
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OutputIterator& sink;
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Context& ctx;
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Delimiter const& delim;
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// silence MSVC warning C4512: assignment operator could not be generated
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BOOST_DELETED_FUNCTION(fail_function& operator= (fail_function const&))
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};
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}}}}
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#endif
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