RE: STL iterators in gcc 3.2

[Alberto Garcia Raboso <Alberto.Garcia.Raboso@cern.ch>]

> 
> From what I've noticed, the old 2.95 implemented std::vector iterators as
> just plain pointers (|std::vector<double>| used |double*|'s for iteration).
> It looks like now the library is using class abstractions for its iterators.
> This has many benefits, but it also means that some code, e.g.,
> 
> 	void foo(double*);
> 	std::vector<double> myvect;
> 	foo(myvect.begin());
> 
> will no longer work, since |myvect.begin()| does not necessarily produce a
> double*.  
> 
> I have found in order to make your code independent of the iterator object,
> you have to either use templates,
> 
> 	template <typename OutputIterator>
> 	void foo(OutputIterator);
> 
> or you must specifically use the iterator type defined by your container,
> 
> 	void foo(std::vector<double>::iterator);
> 
> I don't know if there is an easier conversion than either of these, but I
> would be interested in hearing any other ideas.

Of course, this explains vey well he problem. But I cannot use new
definitions of the methods using template arguments instead of pointers,
as they come from a library... So I think I'll have to use a previous
version of gcc, at least until I have time to change my code to adhere to
the standards ;-)

Anyway, thank you very much.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Alberto Garcia Raboso
CERN / EP
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Office 40-2B-19 (+41 22 76 71626)
E-Mail: Alberto.Garcia.Raboso@cern.ch
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