test/args.c

   1 # include <stdarg.h>
   2 # include "bool.h"
   3 int sumn (int x, ...)
   4 {
   5   int y = 0;
   6   void *yaba;
   7   va_list args;
   8
   9   va_start (args, (void *)x); /* okay (args counts as out param) */
  10   while (x > 0)
  11     {
  12       x--;
  13       y = va_arg (args, int); /* okay */
  14       y = va_arg (args, char *); /* type error */
  15       y = va_arg (yaba, int); /* error */
  16     }
  17   return y;
  18 }
  19
  20 int test (int x, char *s)
  21 {
  22   x = sumn(); /* bad */
  23   x = sumn(x); /* okay */
  24   x = sumn(s); /* bad */
  25   x = sumn(x, s); /* okay */
  26
  27   x = test (x, s, x); /* bad */
  28   return x;
  29 }
  30
  31 int missingargs (int x, int y)  /* this is okay */
  32 {
  33   y = x;
  34   return x;
  35 }
  36
  37 int severalargs (char c, int y, bool b) /* first arg: int, second char *, third extra */
  38 {
  39   if (b) { c = 'a'; }
  40   return y;
  41 }
  42
  43 int severalargs2 (int x)  /* bad */
  44 {
  45   return x;
  46 }
  47
  48 int voidargs (char c) /* bad */
  49 {
  50   c = 'a';
  51   return 3;
  52 }
  53
  54 int any (...) /* ok */
  55 {
  56   return 3;
  57 }
  58
  59 int many1 (int x, char c, float f) /* bad */
  60 {
  61   x;
  62   c;
  63   f;
  64   return x;
  65 }
  66
  67 int many2 (int x, char c, ...)
  68 {
  69   c;
  70   return x;
  71 }
  72
  73 int many3 (int x) /* bad */
  74 {
  75   return x;
  76 }
  77
  78
  79