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22 lines
694 B
C++
22 lines
694 B
C++
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// Copyright (c) 2017-2022 Dr. Colin Hirsch and Daniel Frey
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// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
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#ifndef TAO_PEGTL_INTERNAL_HAS_APPLY_HPP
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#define TAO_PEGTL_INTERNAL_HAS_APPLY_HPP
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#include <utility>
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#include "../config.hpp"
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namespace TAO_PEGTL_NAMESPACE::internal
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{
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template< typename, typename, template< typename... > class, typename... >
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inline constexpr bool has_apply = false;
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template< typename C, template< typename... > class Action, typename... S >
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inline constexpr bool has_apply< C, decltype( C::template apply< Action >( std::declval< S >()... ) ), Action, S... > = true;
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} // namespace TAO_PEGTL_NAMESPACE::internal
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#endif
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