/usr/include/pegtl/nothing.hh is in pegtl-dev 1.3.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | // Copyright (c) 2014-2015 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/ColinH/PEGTL/
#ifndef PEGTL_NOTHING_HH
#define PEGTL_NOTHING_HH
#include <type_traits>
namespace pegtl
{
template< typename Rule > struct nothing {};
template< template< typename ... > class Action, typename Rule >
using is_nothing = std::is_base_of< nothing< Rule >, Action< Rule > >;
} // pegtl
#endif
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