68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
// Copyright (c) 2001-2011 Hartmut Kaiser
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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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#if !defined(BOOST_SPIRIT_KARMA_BOOL_UTILS_SEP_28_2009_0644PM)
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#define BOOST_SPIRIT_KARMA_BOOL_UTILS_SEP_28_2009_0644PM
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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/char_class.hpp>
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#include <boost/spirit/home/support/unused.hpp>
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#include <boost/spirit/home/karma/detail/generate_to.hpp>
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#include <boost/spirit/home/karma/detail/string_generate.hpp>
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#include <boost/spirit/home/karma/numeric/detail/numeric_utils.hpp>
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#include <boost/detail/workaround.hpp>
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namespace boost { namespace spirit { namespace karma
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{
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///////////////////////////////////////////////////////////////////////////
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//
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// The bool_inserter template takes care of the boolean to string
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// conversion. The Policies template parameter is used to allow
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// customization of the formatting process
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//
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///////////////////////////////////////////////////////////////////////////
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template <typename T>
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struct bool_policies;
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template <typename T
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, typename Policies = bool_policies<T>
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, typename CharEncoding = unused_type
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, typename Tag = unused_type>
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struct bool_inserter
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{
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template <typename OutputIterator, typename U>
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static bool
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call (OutputIterator& sink, U b, Policies const& p = Policies())
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{
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#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1600))
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(void)p; // suppresses warning: C4100: 'p' : unreferenced formal parameter
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#endif
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return p.template call<bool_inserter>(sink, T(b), p);
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}
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///////////////////////////////////////////////////////////////////////
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// This is the workhorse behind the real generator
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///////////////////////////////////////////////////////////////////////
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template <typename OutputIterator, typename U>
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static bool
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call_n (OutputIterator& sink, U b, Policies const& p)
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{
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#if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1600))
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(void)p; // suppresses warning: C4100: 'p' : unreferenced formal parameter
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#endif
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if (b)
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return p.template generate_true<CharEncoding, Tag>(sink, b);
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return p.template generate_false<CharEncoding, Tag>(sink, b);
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}
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};
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}}}
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#endif
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