gcc/testsuite/gcc.c-torture/execute/stdarg-3.c

   1 #include <stdarg.h>
   2
   3 extern void abort (void);
   4
   5 int foo_arg, bar_arg;
   6 long x;
   7 double d;
   8 va_list gap;
   9 struct S1 { int i; double d; int j; double e; } s1;
  10 struct S2 { double d; long i; } s2;
  11 int y;
  12
  13 void
  14 bar (int v)
  15 {
  16   bar_arg = v;
  17 }
  18
  19 void
  20 f1 (int i, ...)
  21 {
  22   va_list ap;
  23   va_start (ap, i);
  24   while (i-- > 0)
  25     x = va_arg (ap, long);
  26   va_end (ap);
  27 }
  28
  29 void
  30 f2 (int i, ...)
  31 {
  32   va_list ap;
  33   va_start (ap, i);
  34   while (i-- > 0)
  35     d = va_arg (ap, double);
  36   va_end (ap);
  37 }
  38
  39 void
  40 f3 (int i, ...)
  41 {
  42   va_list ap;
  43   int j = i;
  44   while (j-- > 0)
  45     {
  46       va_start (ap, i);
  47       x = va_arg (ap, long);
  48       va_end (ap);
  49       bar (x);
  50     }
  51 }
  52
  53 void
  54 f4 (int i, ...)
  55 {
  56   va_list ap;
  57   int j = i;
  58   while (j-- > 0)
  59     {
  60       va_start (ap, i);
  61       d = va_arg (ap, double);
  62       va_end (ap);
  63       bar (d + 4.0);
  64     }
  65 }
  66
  67 void
  68 f5 (int i, ...)
  69 {
  70   va_list ap;
  71   va_start (ap, i);
  72   while (i-- > 0)
  73     s1 = va_arg (ap, struct S1);
  74   va_end (ap);
  75 }
  76
  77 void
  78 f6 (int i, ...)
  79 {
  80   va_list ap;
  81   va_start (ap, i);
  82   while (i-- > 0)
  83     s2 = va_arg (ap, struct S2);
  84   va_end (ap);
  85 }
  86
  87 void
  88 f7 (int i, ...)
  89 {
  90   va_list ap;
  91   int j = i;
  92   while (j-- > 0)
  93     {
  94       va_start (ap, i);
  95       s1 = va_arg (ap, struct S1);
  96       va_end (ap);
  97       bar (s1.i);
  98     }
  99 }
 100
 101 void
 102 f8 (int i, ...)
 103 {
 104   va_list ap;
 105   int j = i;
 106   while (j-- > 0)
 107     {
 108       va_start (ap, i);
 109       s2 = va_arg (ap, struct S2);
 110       y = va_arg (ap, int);
 111       va_end (ap);
 112       bar (s2.i);
 113     }
 114 }
 115
 116 int
 117 main (void)
 118 {
 119   struct S1 a1, a3;
 120   struct S2 a2, a4;
 121
 122   f1 (7, 1L, 2L, 3L, 5L, 7L, 9L, 11L, 13L);
 123   if (x != 11L)
 124     abort ();
 125   f2 (6, 1.0, 2.0, 4.0, 8.0, 16.0, 32.0, 64.0);
 126   if (d != 32.0)
 127     abort ();
 128   f3 (2, 1L, 3L);
 129   if (bar_arg != 1L || x != 1L)
 130     abort ();
 131   f4 (2, 17.0, 19.0);
 132   if (bar_arg != 21 || d != 17.0)
 133     abort ();
 134   a1.i = 131;
 135   a1.j = 251;
 136   a1.d = 15.0;
 137   a1.e = 191.0;
 138   a3 = a1;
 139   a3.j = 254;
 140   a3.e = 178.0;
 141   f5 (2, a1, a3, a1);
 142   if (s1.i != 131 || s1.j != 254 || s1.d != 15.0 || s1.e != 178.0)
 143     abort ();
 144   f5 (3, a1, a3, a1);
 145   if (s1.i != 131 || s1.j != 251 || s1.d != 15.0 || s1.e != 191.0)
 146     abort ();
 147   a2.i = 138;
 148   a2.d = 16.0;
 149   a4.i = 257;
 150   a4.d = 176.0;
 151   f6 (2, a2, a4, a2);
 152   if (s2.i != 257 || s2.d != 176.0)
 153     abort ();
 154   f6 (3, a2, a4, a2);
 155   if (s2.i != 138 || s2.d != 16.0)
 156     abort ();
 157   f7 (2, a3, a1, a1);
 158   if (s1.i != 131 || s1.j != 254 || s1.d != 15.0 || s1.e != 178.0)
 159     abort ();
 160   if (bar_arg != 131)
 161     abort ();
 162   f8 (3, a4, a2, a2);
 163   if (s2.i != 257 || s2.d != 176.0)
 164     abort ();
 165   return 0;
 166 }