gcc/testsuite/gcc.c-torture/execute/va-arg-22.c

   1 #include <stdarg.h>
   2
   3 extern void abort (void);
   4 extern void exit (int);
   5
   6 void bar (int n, int c)
   7 {
   8   static int lastn = -1, lastc = -1;
   9
  10   if (lastn != n)
  11     {
  12       if (lastc != lastn)
  13         abort ();
  14       lastc = 0;
  15       lastn = n;
  16     }
  17
  18   if (c != (char) (lastc ^ (n << 3)))
  19     abort ();
  20   lastc++;
  21 }
  22
  23 #define D(N) typedef struct { char x[N]; } A##N;
  24 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
  25 D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
  26 D(16) D(31) D(32) D(35) D(72)
  27 #undef D
  28
  29 void foo (int size, ...)
  30 {
  31 #define D(N) A##N a##N;
  32 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
  33 D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
  34 D(16) D(31) D(32) D(35) D(72)
  35 #undef D
  36   va_list ap;
  37   int i;
  38
  39   if (size != 21)
  40     abort ();
  41   va_start (ap, size);
  42 #define D(N)                                    \
  43   a##N = va_arg (ap, typeof (a##N));            \
  44   for (i = 0; i < N; i++)                       \
  45     bar (N, a##N.x[i]);
  46 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
  47 D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
  48 D(16) D(31) D(32) D(35) D(72)
  49 #undef D
  50   va_end (ap);
  51 }
  52
  53 int main (void)
  54 {
  55 #define D(N) A##N a##N;
  56 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
  57 D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
  58 D(16) D(31) D(32) D(35) D(72)
  59 #undef D
  60   int i;
  61
  62 #define D(N)                                    \
  63   for (i = 0; i < N; i++)                       \
  64     a##N.x[i] = i ^ (N << 3);
  65 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
  66 D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
  67 D(16) D(31) D(32) D(35) D(72)
  68 #undef D
  69
  70   foo (21
  71 #define D(N) , a##N
  72 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)
  73 D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)
  74 D(16) D(31) D(32) D(35) D(72)
  75 #undef D
  76       );
  77   exit (0);
  78 }