Nested structure as request?

[byzhang]

I try to change the "Hello World" to "Hello FirstName LastName" like

_my_scope = D(_test2(_name=D(_first, _second), _age=int()) = [] (auto p) {
  return D(_message = "hello " + p.name.first + " " +p.name.second + " " + std::to_string(p.age));
  }),

with

#ifndef IOD_SYMBOL_first
#define IOD_SYMBOL_first                                                                                                                                                                                   iod_define_symbol(first)
#endif

#ifndef IOD_SYMBOL_second
#define IOD_SYMBOL_second
iod_define_symbol(second)
#endif

And I got such error message

error: ‘s::_name_t::variable_type<iod::sio<s::_first_t, s::_second_t> >::value_type’ has no member named ‘second’
       return D(_message = "hello " + p.name.first + " " +p.name.second + " " + std::to_string(p.age));
error: ‘s::_name_t::variable_type<iod::sio<s::_first_t, s::_second_t> >::value_type’ has no member named ‘first’
       return D(_message = "hello " + p.name.first + " " +p.name.second + " " + std::to_string(p.age));

What's the correct syntax to use nested structure?

[matt-42]

The default string type is not supported on nested objects. This should fix your problem:
_name=D(_first = std::string(), _second = std::string()), _age = int()

[byzhang]

It works!

[matt-42]

Good to know! Thanks for closing this issue :)