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[Frama-c-discuss] Array elements passed as reference

  • Subject: [Frama-c-discuss] Array elements passed as reference
  • From: Boris.Hollas at de.bosch.com (Hollas Boris (CR/AEY1))
  • Date: Mon, 8 Jun 2009 10:20:31 +0200
Hello,

Consider the code below (example code from bug http://bts.frama-c.com/view.php?id=38). Copy is called with array elements passed as reference.

In the absence of a modifies-clause, which of the following assumptions does Jessie make in this situation?
  1) Copy may modify arbitrary elements in a[]
  2) Copy may modify at most a[0] and a[i]

Regards,
Boris

-------------------------------

void Copy(int *p, int *q)
{
  *q = *p;
}


int foo(int a[]) {
  int i=1;

  Copy(&a[0], &a[i]);
  return i;
}