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/* More sequence point warning tests  */
/* { dg-do compile } */
/* { dg-options "-Wsequence-point" } */
 
struct s { struct s *nxt; int v; } q;
 
int x[10];
 
int foo(int *p)
{
  int i = 0;
 
  /* Test general-lvalue sequence point warnings  */
  (*p) = (*p)++; /* { dg-warning "undefined" "sequence point warning" } */
  p[3] = p[3]++; /* { dg-warning "undefined" "sequence point warning" } */
  p[i] = p[i]++; /* { dg-warning "undefined" "sequence point warning" } */
  x[3] = x[3]++; /* { dg-warning "undefined" "sequence point warning" } */
  q.nxt->nxt->v = q.nxt->nxt->v++; /* { dg-warning "undefined" "sequence point warning" } */
 
  /* test expressions that appear elsewhere in the C grammar */
 
  { int a = i-i++; (void)a;} /* { dg-warning "undefined" "sequence point warning" } */
 
  if ((i-i++) != 0) /* { dg-warning "undefined" "sequence point warning" } */
    return i-i++; /* { dg-warning "undefined" "sequence point warning" } */
 
  for (i-i++;;)  /* { dg-warning "undefined" "sequence point warning" } */
    ;
 
  for (; (i-i++) != 0; )  /* { dg-warning "undefined" "sequence point warning" } */
    ;
 
  for (;;i-i++)  /* { dg-warning "undefined" "sequence point warning" } */
    ;
 
  while ((i-i++) != 0)  /* { dg-warning "undefined" "sequence point warning" } */
    ;
 
  do {} while ((i-i++) != 0);  /* { dg-warning "undefined" "sequence point warning" } */
 
  switch (i-i++) {  /* { dg-warning "undefined" "sequence point warning" } */
  case 0: return 1;
  }
 
  return 0;
}