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   comp.lang.fortran      Putting John Backus on a giant pedestal      5,127 messages   

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   Message 4,813 of 5,127   
   Lawrence D'Oliveiro to Thomas Koenig   
   Re: Is there a way in Fortran to designa   
   27 Oct 24 01:55:34   
   
   From: ldo@nz.invalid   
      
   On Sat, 26 Oct 2024 21:38:38 -0000 (UTC), Thomas Koenig wrote:   
      
   > Lawrence D'Oliveiro  schrieb:   
   >   
   >> On Sat, 26 Oct 2024 11:51:42 -0000 (UTC), Thomas Koenig wrote:   
   >>   
   >>> The "parameter adjustment" above is explicitly listed as undefined   
   >>> behavior, in annex J2 of n2596.pdf (for example):   
   >>>   
   >>> "Addition or subtraction of a pointer into, or just beyond, an array   
   >>> object and an integer type produces a result that does not point into,   
   >>> or just beyond, the same array object (6.5.6)."   
   >>   
   >> Read it again: note the qualification “that does not point into, or   
   >> just beyond, the same array object”. So long as it *does* point “into,   
   >> or just beyond, the same array object”, it is fine.   
   >   
   > What you are writing is equivalent to   
      
   You don’t understand what pointer arithmetic means, do you?   
      
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