From: arne@vajhoej.dk   
      
   On 9/7/2025 5:33 PM, Craig A. Berry wrote:   
   >>> Waldek Hebisch  wrote:   
   >>>> And fundamental thing: Posix promises that two files are in   
   >>>> fact the same file if and only if both 'st_dev' field and   
   >>>> 'st_ino' fields match.  And libgfortran depends on this.   
   >>>> Does it hold on VMS?   
   > If st_ino is an integral type, then I think the answer is yes.  If it's   
   > the array type, then it probably depends on who's doing the comparisons.   
   > If you pass the stat structure to existing code that does the   
   > comparison, it may or may not handle the array correctly.   
      
   I believe it contains FID.   
      
   Same disk and same FID must mean same file.   
      
   Different file must mean either different disk or different FID.   
      
   So either 3 comparisons of int16_t or one comparison of int64_t   
   should do it. Assuming that the last 16 bit of the int64_t always   
   has same value (like 0).   
      
   Arne   
      
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