File: copy_visitor.i

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frama-c 20201209%2Btitanium-4.1
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/* run.config
   STDOPT: +"-copy -eva @EVA_CONFIG@"
 */
struct S {
  int a;
  int b;
};
struct S s = {.a = 1, .b=2};

/*@
  requires \valid(s);
  assigns s->a;
*/
int f(struct S* s){
  s->a=2;
  return s->b;
}

/*@ assigns s.a; */
int main () {
  s.a = 2;
  /*@ assert s.a == 2; */
  f(&s);
  return 0;
}

int g(int x);

int g(int x) { return 0; }