gcc/testsuite/gcc.dg/c99-scope-2.c

   1 /* Test for new block scopes in C99.  Test for each new scope.  */
   2 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
   3 /* { dg-do run } */
   4 /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
   5
   6 extern void abort (void);
   7 extern void exit (int);
   8
   9 int
  10 main (void)
  11 {
  12   struct foo { int i0; };
  13   int a, b, c, d;
  14   a = sizeof (struct foo);
  15   if (b = sizeof (struct foo { int i0; int i1; }))
  16     c = sizeof (struct foo { int i0; int i1; int i2; });
  17   if (!(a <= b && b <= c))
  18     abort ();
  19   if ((b = sizeof (struct foo { int i0; int i1; })), 0)
  20     c = sizeof (struct foo { int i0; int i1; int i2; });
  21   else
  22     d = sizeof (struct foo { int i0; int i1; int i2; int i3; });
  23   if (!(a <= b && b <= d))
  24     abort ();
  25   switch (b = sizeof (struct foo { int i0; int i1; }))
  26     default:
  27       c = sizeof (struct foo { int i0; int i1; int i2; });
  28   if (!(a <= b && b <= c))
  29     abort ();
  30   do
  31     c = sizeof (struct foo { int i0; int i1; int i2; });
  32   while ((b = sizeof (struct foo { int i0; int i1; })), 0);
  33   if (!(a <= b && b <= c))
  34     abort ();
  35   d = 1;
  36   while ((b = sizeof (struct foo { int i0; int i1; })), d)
  37     (c = sizeof (struct foo { int i0; int i1; int i2; })), d--;
  38   if (!(a <= b && b <= c))
  39     abort ();
  40   d = 1;
  41   for ((b = sizeof (struct foo { int i0; int i1; })); d; d--)
  42     c = sizeof (struct foo { int i0; int i1; int i2; });
  43   if (!(a <= b && b <= c))
  44     abort ();
  45   d = 1;
  46   for ((b = sizeof (struct foo { int i0; int i1; })); d; d--)
  47     c = sizeof (struct foo);
  48   if (!(a <= b && b == c))
  49     abort ();
  50   d = 1;
  51   for (; (b = sizeof (struct foo { int i0; int i1; })), d; d--)
  52     c = sizeof (struct foo { int i0; int i1; int i2; });
  53   if (!(a <= b && b <= c))
  54     abort ();
  55   d = 1;
  56   for (; (b = sizeof (struct foo { int i0; int i1; })), d; d--)
  57     c = sizeof (struct foo);
  58   if (!(a <= b && b == c))
  59     abort ();
  60   d = 1;
  61   for (; d; (b = sizeof (struct foo { int i0; int i1; })), d--)
  62     c = sizeof (struct foo { int i0; int i1; int i2; });
  63   if (!(a <= b && b <= c))
  64     abort ();
  65   d = 1;
  66   for (; d; (b = sizeof (struct foo { int i0; int i1; })), d--)
  67     c = sizeof (struct foo);
  68   if (!(a <= b && b == c))
  69     abort ();
  70   exit (0);
  71 }