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Struct template promote<To, From, std_vector_tag, std_vector_tag>

boost::numeric::functional::promote<To, From, std_vector_tag, std_vector_tag>


template<typename To, typename From> 
struct promote<To, From, std_vector_tag, std_vector_tag> : public std::unary_function< From, To > {

  // public member functions
  To operator()(From &) const;


promote public member functions

  1. To operator()(From & arr) const;