|  | 
Construct with execution context.
template<
    typename ExecutionContext>
basic_resolver(
    ExecutionContext & context,
    typename constraint< is_convertible< ExecutionContext &, execution_context & >::value >::type  = 0);
            This constructor creates a ip::basic_resolver.
          
An execution context which provides the I/O executor that the resolver will use, by default, to dispatch handlers for any asynchronous operations performed on the resolver.