[Swift-devel] [Bug 291] New: Add a exists() function to test for file existence

[Justin M Wozniak]

I have a prototype of this, I'll get it checked in later today.
 	Justin

On Fri, 1 Apr 2011, John Dennis wrote:

> Michael,
>
> 	This type of function would be great to have.
>
> John
> On Apr 1, 2011, at 11:51 AM, Michael Wilde wrote:
>
>> Basically as far as I understand: the presence or absence of a particular 
>> data file within the inout dataset is to be used to determine whether the 
>> code to process that dataset subsection gets invoked or not:
>> 
>> if (exists("extra.data")) {
>>    DataFile extraInput<"extra.data">;
>>    extraResult = analyze(extraInput);
>> }
>> 
>> The above is my assumption based on a phone call.  We can and should verify 
>> the assumption with a simple example.
>> 
>> I also thought we can try this today by seeing if extraInput can be an 
>> array, mapped to zero items if nothing to do and 1 item if something to do. 
>> That would at least let us test the use case.
>> 
>> John, can you verify if the example Swift lines above are what you are 
>> looking for here?
>> 
>> - Mike
>> 
>> ----- Original Message -----
>>> On Fri, 2011-04-01 at 10:51 -0500, Michael Wilde wrote:
>>> 
>>>> - we should first verify that exists() will solve the NCAR need in a
>>>> sufficiently clean way
>>> 
>>> I think this is important. Can we get a description of the problem
>>> instead of a (otherwise) random proposal for a solution?
>> 
>> -- 
>> Michael Wilde
>> Computation Institute, University of Chicago
>> Mathematics and Computer Science Division
>> Argonne National Laboratory
>> 
>
> _______________________________________________
> Swift-devel mailing list
> Swift-devel at ci.uchicago.edu
> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel

-- 
Justin M Wozniak