Struct valueboost::proto::functional::value —
A callable PolymorphicFunctionObject that is equivalent to the
Synopsisstruct value : proto::callable { template<typename This, typename Expr> struct result<This(Expr)> : proto::result_of::value< Expr > { }; // public member functions template<typename Expr> typename proto::result_of::value< Expr & >::type operator()(Expr &) const; template<typename Expr> typename proto::result_of::value< Expr const & >::type operator()(Expr const &) const; }; Description
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template<typename Expr> typename proto::result_of::value< Expr const & >::type operator()(Expr const & expr) const;
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.