stdio-common/tst-sprintf.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <locale.h>
   4 #include <string.h>
   5
   6
   7 int
   8 main (void)
   9 {
  10   char buf[100];
  11   int result = 0;
  12
  13   if (sprintf (buf, "%.0ls", L"foo") != 0
  14       || strlen (buf) != 0)
  15     {
  16       puts ("sprintf (buf, \"%.0ls\", L\"foo\") produced some output");
  17       result = 1;
  18     }
  19
  20 #define SIZE (1024*70000)
  21 #define STR(x) #x
  22
  23   char *dst = malloc (SIZE + 1);
  24
  25   if (dst == NULL)
  26     {
  27       puts ("memory allocation failure");
  28       result = 1;
  29     }
  30   else
  31     {
  32       sprintf (dst, "%*s", SIZE, "");
  33       if (strnlen (dst, SIZE + 1) != SIZE)
  34         {
  35           puts ("sprintf (dst, \"%*s\", " STR(SIZE) ", \"\") did not produce enough output");
  36           result = 1;
  37         }
  38       free (dst);
  39     }
  40
  41   if (sprintf (buf, "%1$d%3$.*2$s%4$d", 7, 67108863, "x", 8) != 3
  42       || strcmp (buf, "7x8") != 0)
  43     {
  44       printf ("sprintf (buf, \"%%1$d%%3$.*2$s%%4$d\", 7, 67108863, \"x\", 8) produced `%s' output", buf);
  45       result = 1;
  46     }
  47
  48   if (sprintf (buf, "%67108863.16\"%d", 7) != 14
  49       || strcmp (buf, "%67108863.16\"7") != 0)
  50     {
  51       printf ("sprintf (buf, \"%%67108863.16\\\"%%d\", 7) produced `%s' output", buf);
  52       result = 1;
  53     }
  54
  55   if (sprintf (buf, "%*\"%d", 0x3ffffff, 7) != 11
  56       || strcmp (buf, "%67108863\"7") != 0)
  57     {
  58       printf ("sprintf (buf, \"%%*\\\"%%d\", 0x3ffffff, 7) produced `%s' output", buf);
  59       result = 1;
  60     }
  61
  62   if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
  63     {
  64       puts ("cannot set locale");
  65       result = 1;
  66     }
  67   else if (sprintf (buf, "%.8s\n", "Foo: \277") != 7
  68            || strcmp (buf, "Foo: \277\n") != 0)
  69     {
  70       printf ("sprintf (buf, \"%%.8s\\n\", \"Foo: \\277\") produced '%s' output\n", buf);
  71       result = 1;
  72     }
  73
  74   return result;
  75 }