Re: C Language Scoping

Gilberto Persico wrote:


> I can't understand: how can a
> symbol be assigned to a scope (global, a function, a structure) during
> parsing ??? And if I have the same symbol used in more contexts like the
> following example:
> ...
> how can I know in the parser that the first X is an int in scope A and
> the second X is a float in scope test ??


First you know if you are accessing a variable x or a structure component
like a->x or a.x.In the case of two variable, of course the inner definition
is valid.


For a first implementation (well described) look at "Compiler design in C"
from Allen Holub, Chapter 6. The source is available from
http://www.holub.com But I would recommend the text in every case too. This
may be used directly or serve as an inspiration for another implementation.


Michael.


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