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2 definitions found
 for dangling pointer
From The Jargon File (version 4.4.7, 29 Dec 2003) :

  dangling pointer
   n.
  
      [common] A reference that doesn't actually lead anywhere (in C and some
      other languages, a pointer that doesn't actually point at anything valid).
      Usually this happens because it formerly pointed to something that has
      moved or disappeared. Used as jargon in a generalization of its techspeak
      meaning; for example, a local phone number for a person who has since moved
      to the other coast is a dangling pointer.
  

From The Free On-line Dictionary of Computing (30 December 2018) :

  dangling pointer
  
      A reference that doesn't actually lead anywhere.
     In C and some other languages, a pointer that doesn't
     actually point at anything valid.  Usually this happens
     because it formerly pointed to something that has moved or
     disappeared, e.g. a heap-allocated block which has been freed
     and reused.
  
     Used as jargon in a generalisation of its technical meaning;
     for example, a local phone number for a person who has since
     moved is a dangling pointer.
  
     This dictionary contains many dangling pointers -
     cross-references to non-existent entries, as explained in the
     Help page (help.html).
  
     [{Jargon File]
  
     (2014-09-20)
  

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