iostat

[Steve Kargl]

On Tue, Aug 22, 2006 at 10:07:10PM +0200, Daniel Franke wrote:
> 
> If I am not completely mistaken, the numbers returned in "ierr"
> should be distinguishable?
> 

Yes, you are mistaken.  Section 9.4.1.4i states

    Execution of an input/output statement containing the IOSTAT= specifier
    causes the variable specified in the IOSTAT= specifier to become defined
       (1)   With a zero value if neither an error condition, an end-of-file
             condition, nor an end-of-record condition occurs,
       (2)   With a processor-dependent positive integer value if an error
             condition occurs,
       (3)   With a processor-dependent negative integer value if an
             end-of-file condition occurs and no error condition occurs, or
       (4)   With a processor-dependent negative integer value different
             from the end-of-file value if an end-of-record condition occurs
             and no error condition or end-of-file condition

You have case (2).  Note, it does not say that unique positive integers
must be assigned for different error conditions. 
 
-- 
Steve