gnu/dist/gcc4/gcc/testsuite/gcc.dg/pragma-darwin.c

   1 /* Darwin (Mac OS X) pragma exercises.  */
   2
   3 /* { dg-do run { target powerpc-*-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-error "malformed '#pragma options'" } */
  16 #pragma options align  /* { dg-error "malformed '#pragma options'" } */
  17 #pragma options align mac68k /* { dg-error "malformed '#pragma options'" } */
  18 #pragma options align=45 /* { dg-error "malformed '#pragma options'" } */
  19 #pragma options align=foo /* { dg-error "malformed '#pragma options align" } */
  20
  21 #pragma options align=mac68k
  22 struct s1 { short f1; int f2; };
  23 #pragma options align=power
  24 struct s2 { short f1; int f2; };
  25 #pragma options align=mac68k
  26 struct s3 { short f1; int f2; };
  27 #pragma options align=reset
  28 struct s4 { short f1; int f2; };
  29
  30 #pragma options align=mac68k foo /* { dg-warning "junk at end of '#pragma options'" } */
  31
  32 /* Segment pragmas don't do anything anymore.  */
  33
  34 #pragma segment foo
  35
  36 int
  37 main ()
  38 {
  39   int x, z;  /* { dg-warning "unused variable" } */
  40   #pragma unused (x, y)
  41
  42   if (sizeof (struct s1) != 6)
  43     abort ();
  44   if (sizeof (struct s2) != 8)
  45     abort ();
  46   if (sizeof (struct s3) != 6)
  47     abort ();
  48   if (sizeof (struct s4) != 8)
  49     abort ();
  50   return 0;
  51 }
  52
  53 void
  54 unused_err_test ()
  55 {
  56   int a, b;
  57   /* Trying to match on '(' or ')' gives regexp headaches, use . instead.  */
  58 #pragma unused  /* { dg-error "missing '.' after '#pragma unused" } */
  59 #pragma unused (a  /* { dg-error "missing '.' after '#pragma unused" } */
  60 #pragma unused (b) foo /* { dg-warning "junk at end of '#pragma unused'" } */
  61 }