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## Function template _pass

boost::parser::_pass

## Synopsis

    // In header: <boost/parser/parser_fwd.hpp>

    template<typename Context> decltype(auto) _pass(Context const & context);

## Description

Returns a reference to a `bool` that represents the success or failure of the bottommost parser. You can assign `false` to this within a semantic action to force a parser to fail its parse.