56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
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#ifndef BOOST_METAPARSE_V1_CPP14_IMPL_ANY_OF_C_HPP
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#define BOOST_METAPARSE_V1_CPP14_IMPL_ANY_OF_C_HPP
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// Copyright Abel Sinkovics (abel@sinkovics.hu) 2017.
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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/mpl/bool.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 <char... Cs>
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struct any_of_c
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{
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typedef any_of_c type;
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static constexpr bool run(char c_)
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{
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const bool values[] = {(c_ == Cs)...};
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for (const bool* i = values; i != values + sizeof...(Cs); ++i)
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{
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if (*i)
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{
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return true;
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}
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}
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return false;
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}
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template <class Chr>
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struct apply : boost::mpl::bool_<any_of_c::run(Chr::type::value)> {};
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};
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template <>
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struct any_of_c<>
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{
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typedef any_of_c type;
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template <class>
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struct apply : boost::mpl::false_ {};
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};
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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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