Re: Ada.Streams.Stream_IO.Stream_Access

[Martin Krischik <martin@krischik.com>]

Alex wrote:

> Hi,
> 
> I am having a problem with ADA Streams.
> 
> I need to access a file which is >2Gb and read data from it in chunks.
> 
> Firstly I was having problems getting the file size as
> Ada.Streams.Stream_IO.Size didn't seem to want to go over Integer'last
> (2*31)
> Worked fine for files up until the 2Gb range and then it went funny!
> 
> I had to call a 'c' routine (returned an Integer64...i.e. 2*63) to get
> the file size and decide how many chunks I wanted.
> 
> Ok, now I try to read from the huge file....and bang I am getting a
> Constraint error. Is this a case that I just can't use ADA Streams on
> files bigger then 2*31 bytes??
> 
> This is driving me nuts and I don't want to call 'c' routines again
> and spoil my ADA :)

I take it that you are not a AdaCore customer - otherwise you would not ask
here. However there is a communication channel for non customer as well:
"GNAT Discussion List" <gnatlist@lyris.seas.gwu.edu>. You might want to
raise the point there.

With Regards

Martin


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