1  /* Darwin (Mac OS X) pragma exercises.  */
       2  
       3  /* { dg-do run { target *-*-darwin* } } */
       4  /* { dg-options "-O -Wunused" } */
       5  
       6  /* The mark pragma is to help decorate IDEs.  */
       7  
       8  extern void abort(void);
       9  
      10  #pragma mark hey hey ho
      11  
      12  /* The options pragma used to do a lot, now it's only for emulating
      13     m68k alignment rules in structs.  */
      14  
      15  #pragma options 23  /* { dg-warning "malformed '#pragma options'" } */
      16  #pragma options align  /* { dg-warning "malformed '#pragma options'" } */
      17  #pragma options align natural /* { dg-warning "malformed '#pragma options'" } */
      18  #pragma options align=45 /* { dg-warning "malformed '#pragma options'" } */
      19  #pragma options align=foo /* { dg-warning "malformed '#pragma options align" } */
      20  
      21  #ifndef __LP64__
      22  #pragma options align=mac68k
      23  struct s1 { short f1; int f2; };
      24  #endif
      25  #pragma options align=power
      26  struct s2 { short f1; int f2; };
      27  #ifndef __LP64__
      28  #pragma options align=mac68k
      29  struct s3 { short f1; int f2; };
      30  #endif
      31  #pragma options align=reset
      32  struct s4 { short f1; int f2; };
      33  
      34  #pragma options align=natural foo /* { dg-warning "junk at end of '#pragma options'" } */
      35  /* { dg-warning "malformed '#pragma options align={mac68k|power|reset}', ignoring" "ignoring" { target *-*-* } .-1 } */
      36  
      37  /* Segment pragmas don't do anything anymore.  */
      38  
      39  #pragma segment foo
      40  
      41  int
      42  main ()
      43  {
      44    int x, z;  /* { dg-warning "unused variable 'z'" } */
      45    #pragma unused (x, y)
      46  
      47  #ifndef __LP64__
      48    if (sizeof (struct s1) != 6)
      49      abort ();
      50  #endif
      51    if (sizeof (struct s2) != 8)
      52      abort ();
      53  #ifndef __LP64__
      54    if (sizeof (struct s3) != 6)
      55      abort ();
      56  #endif
      57    if (sizeof (struct s4) != 8)
      58      abort ();
      59    return 0;
      60  }
      61  
      62  void
      63  unused_err_test ()
      64  {
      65    int a, b;
      66    /* Trying to match on '(' or ')' gives regexp headaches, use . instead.  */
      67  #pragma unused  /* { dg-warning "missing '.' after '#pragma unused" } */
      68  #pragma unused (a  /* { dg-warning "missing '.' after '#pragma unused" } */
      69  #pragma unused (b) foo /* { dg-warning "junk at end of '#pragma unused'" } */
      70  }