[fpc-pascal] Re: Complex circular references

[Jorge Aldo G. de F. Junior]

Or, if the problem is the initialization, makes so that you can only
have circular references among units that dont have explicit
initialization/finalization.

Problem solved.

IIRC someone was trying to change FPC in order to solve circular
references, but this never materialized...

2012/11/23 leledumbo <leledumbo_cool at yahoo.co.id>:
>> I still dont understand why FPC doesnt support circular references...
>
> There is no way to solve that ?
>
> Do you think Delphi or Turbo Pascal or even UCSD Pascal ever supports? The
> concept of units and uses clause makes the order in which units must be
> initialized (and how identifier is searched) is important, which is derived
> from how it's written in the uses clause, in a cascaded fashion. Thus, a
> uses clause serves as a depth first search path for the compiler to
> determine unit initialization order. If A uses B and B uses A, directly or
> indirectly, which one should be initialized first?
>
> The only way to solve is to correctly group things in a unit (after all,
> unit serves as a placeholder for closely related things), or use 3rd unit
> for data sharing or the worst, use circular reference in implementation
> section. You'll notice that this is a common problem in a language with
> similar concept (and each have its own workaround).
>
>
>
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