1  /* { dg-do compile } */
       2  
       3  int x;
       4  const int y;
       5  int bar(void);
       6  
       7  void f1(void)
       8  {
       9    register int z;
      10  
      11    #pragma omp atomic
      12      x %= 2;		/* { dg-error "invalid operator" } */
      13    #pragma omp atomic
      14      x = x + 1;
      15    #pragma omp atomic
      16      x = 1;		/* { dg-error "invalid form" } */
      17    #pragma omp atomic
      18      ++y;		/* { dg-error "read-only variable" } */
      19    #pragma omp atomic
      20      y--;		/* { dg-error "read-only variable" } */
      21    #pragma omp atomic
      22      y += 1;		/* { dg-error "read-only variable" } */
      23    #pragma omp atomic
      24      z += 1;		/* { dg-error "register variable" } */
      25    #pragma omp atomic
      26      bar();		/* { dg-error "invalid operator" } */
      27    #pragma omp atomic
      28      bar() += 1;		/* { dg-error "lvalue required" } */
      29    #pragma omp atomic a	/* { dg-error "expected end of line" } */
      30      x++;		/* { dg-error "expected 'read', 'write', 'update', 'capture', 'compare', 'weak', 'fail', 'seq_cst', 'acq_rel', 'release', 'relaxed' or 'hint' clause" "" { target *-*-* } .-1 } */
      31    #pragma omp atomic
      32      ;			/* { dg-error "expected expression" } */
      33    #pragma omp atomic
      34    #pragma omp atomic	/* { dg-error "expected expression" } */
      35      ;
      36    /* Check that we didn't get stuck on the pragma eol marker.  */
      37    undef;		/* { dg-error "" } */
      38    /* { dg-message "undeclared identifier is reported only once" "reminder" { target *-*-* } .-1 } */
      39  }