Department of Stupid Questions, please...

Department of Stupid Questions, please...

[default]

Hello!

Alright, to begin with I have experience in several programming
languages, from assembly to OOP, and now I find myself delving into Ada.

I am taking a class on Ada and I am absolutely stuck in a lab.  I need
to open a comma delimited file, read it's contents into a variant
record, display the contents of the record, and then get the next
record.  So far I can open the file without a problem, it is the reading
the comma delimited records into the variant records where I am hitting
a wall.  I would tag on my code with this message, but right at the
moment it is a garbled mess from me trying a bajillion different
approaches to the problem.

Essentially, I am looking for pointers on working with variant records.
Any information will be hugely appreciated!

Thank you in advance!

Lonnie Mathis, wannabe graduating senior...

Re: Department of Stupid Questions, please...

[Niklas Holsti]

default wrote:
  ...
> 
> I am taking a class on Ada and I am absolutely stuck in a lab.  I need
> to open a comma delimited file, read it's contents into a variant
> record, display the contents of the record, and then get the next
> record.  So far I can open the file without a problem, it is the reading
> the comma delimited records into the variant records where I am hitting
> a wall.  I would tag on my code with this message, but right at the
> moment it is a garbled mess from me trying a bajillion different
> approaches to the problem.
> 
> Essentially, I am looking for pointers on working with variant records.
> Any information will be hugely appreciated!

If I understand correctly, you are opening a text file, where each
line is a sequence of fields, separated by commas, and you want
to read a line at a time, store the fields in a variant record,
and then display the record, for each line.

I find I can't advise you without knowing which feature of the input
file is creating a need for variants of the Ada record. Is the
number of fields per line variable? Is the type of the fields
variable (number, string, ...)?

> Thank you in advance!
> 
> Lonnie Mathis, wannabe graduating senior...

Happy to help, when I can.

Niklas Holsti
Working at but not speaking for Space Systems Finland Ltd.