Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::proto::functional::child_c —
A callable PolymorphicFunctionObject that is equivalent to the
proto::child_c() function.
// In header: <boost/proto/traits.hpp> template<long N> struct child_c : proto::callable { // member classes/structs/unions template<typename This, typename Expr> struct result<This(Expr)> : proto::result_of::child_c< Expr, N > { }; // public member functions template<typename Expr> typename proto::result_of::child_c< Expr &, N >::type operator()(Expr &) const; template<typename Expr> typename proto::result_of::child_c< Expr const &, N >::type operator()(Expr const &) const; };
child_c public member functionstemplate<typename Expr> typename proto::result_of::child_c< Expr &, N >::type operator()(Expr & expr) const;
Return the Nth child of the given expression.
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Throws: |
Will not throw. |
template<typename Expr> typename proto::result_of::child_c< Expr const &, N >::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.