How many types can I nest inside each other?

[OP1]

Hi,

Is there a limit to the number of derived types that can be nested inside each other (such as A%B%C%D%E... etc.)?

Thanks,

Olivier

[Steven_L_Intel1]

Quoting - opmkl

Hi,

Is there a limit to the number of derived types that can be nested inside each other (such as A%B%C%D%E... etc.)?

Thanks,

Olivier

30. This is listed in the "Compiler Limits" table in the Reference Information section of the compiler Building Applications manual.

[jimdempseyatthecove]

Steve,

I would interpret this as 30 as the number of nests for de-referencing in expression as to number of enclosed nesting levels in the declaration. In order to access those members you would be required to use de-referencing functions

value = getFoo(A%B%C%D%E%...%Z) + getFoo(A2%B%C%D%E%...%Z)

where the dummy in getFoo is a type

real function getFoo(Z)
type(someTypeForZ) ::Z
getFoo = Z%AA%BB%CC%DD%EE%...%ZZ%foo
end function getFoo

Jim Dempsey

[Steven_L_Intel1]

The entry in the table is labeled "Structure Nesting". I interpret that as the nesting depth of a declaration for derived type.

[OP1]

Thanks for the answer. 30 is five timesmore than what I need!

I can't wait to use the ASSOCIATE feature of IVF 11. Nested structures are great to organize data, but accessing them means long, unwieldy statements... The shortcuts one can define with ASSOCIATE are perfect to overcome this it seems.

Olivier

[jimdempseyatthecove]

Until you get the feature consider using a pointer where you would use associate. Use conditional compilation such that when you get the update you can flip over to associate for a quick test.

Jim