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Struct template null_eval

boost::proto::context::null_eval

Synopsis

template<typename Expr, typename Context> 
struct null_eval {
  // types
  typedef void result_type;

  // public member functions
  void operator()(Expr &, Context &) const;
};

Description

null_eval public member functions

  1. void operator()(Expr & expr, Context & context) const;

    For N in [0,Expr arity), evaluate:

    proto::eval(proto::child_c<N>(expr), context)


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