[Swift-devel] Problem using @extractint() on derived file

[Michael Wilde]

The file doesnt exist - its created in the script, and hence I would 
expect it to be placed back in the dir that I ran swift from.

(But Ive been testing further, in my original scripts, and am seeing 
confusing results, so I need to sort out and isolate.

I do this "y=f(x); rc=extractint(y)" pattern in a loop, thus I needed to 
make the file name unique (else I get the "file already in cache" 
error). So I switched to an anonymous file, and then started getting the 
"no such file" error.

Whats confusing is I may have seen a csae similar to whats below that 
did work, so I need to do more testing to isolate when it works and when 
it fails.

Can you duplicate the failure with the simple script below?

- Mike


On 2/24/09 3:12 PM, Mihael Hategan wrote:
> Where is that file with respect to:
> - the script
> - the place you are running this from
> 
> On Tue, 2009-02-24 at 15:07 -0600, Michael Wilde wrote:
>> This script:
>>
>> ---
>>
>> type file;
>>
>> app (file out) echo (string s) { echo s stdout=@out; }
>>
>> file f<"a">;
>> int i;
>>
>> f = echo("123");
>> i = @extractint(@f);
>> trace("i=", i);
>>
>> ---
>>
>> produces:
>>
>> Swift svn swift-r2552 cog-r2303 
>>
>>  
>>
>> RunID: 20090224-1455-k1vj4uy7 
>>
>> Progress: 
>>
>> Execution failed: 
>>
>>          Reading integer content of file 
>>
>> Caused by: 
>>
>>          a (No such file or directory) 
>>
>>
>>
>> ---
>>
>> I seem to get the same behavior from readData, and the same if I 
>> explicitly specify "a" as the argument to @extractint();
>>
>> Is this because @extractint() is not waiting for "f" to get produced?
>>
>> Ive extracted this example while debugging a script that uses an app to 
>> test the termination condition of an iterate loop.
>>
>> - Mike
>> _______________________________________________
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>> Swift-devel at ci.uchicago.edu
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>