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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;

}