45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
#ifndef BOOST_METAPARSE_V1_IMPL_EMPTY_STRING_HPP
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#define BOOST_METAPARSE_V1_IMPL_EMPTY_STRING_HPP
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// Copyright Abel Sinkovics (abel@sinkovics.hu) 2013.
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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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#include <boost/metaparse/config.hpp>
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namespace boost
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{
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namespace metaparse
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{
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namespace v1
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{
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namespace impl
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{
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template <class Ignore = int>
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struct empty_string
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{
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typedef empty_string type;
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#ifdef BOOST_NO_CONSTEXPR_C_STR
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static const char value[1];
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#else
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static constexpr char value[1] = {0};
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#endif
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};
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#ifdef BOOST_NO_CONSTEXPR_C_STR
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template <class Ignore>
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const char empty_string<Ignore>::value[1] = {0};
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#else
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template <class Ignore>
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constexpr char empty_string<Ignore>::value[1];
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#endif
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}
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}
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}
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}
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#endif
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