stdio-common/tst-printfsz.c

   1 /* Based on code by Larry McVoy <lm@neteng.engr.sgi.com>.  */
   2 #include <printf.h>
   3 #include <stdio.h>
   4 #include <string.h>
   5 #include <libc-internal.h>
   6
   7 #define V       12345678.12345678
   8
   9
  10 int
  11 main (int argc, char *argv[])
  12 {
  13   char buf[1024];
  14   int result = 0;
  15
  16   /* Testing printf_size_info requires using the deprecated
  17      register_printf_function, resulting in warnings
  18      "'register_printf_function' is deprecated".  */
  19   DIAG_PUSH_NEEDS_COMMENT;
  20   DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
  21   /* Register the printf handlers.  */
  22   register_printf_function ('b', printf_size, printf_size_info);
  23   register_printf_function ('B', printf_size, printf_size_info);
  24   DIAG_POP_NEEDS_COMMENT;
  25
  26
  27   sprintf (buf, "%g %b %B %.0b %.0B %.1b %.1B %8.0b %08.0B",
  28            V, 1025., V, V, V, V, V, V, V, V);
  29   fputs (buf, stdout);
  30   if (strcmp (buf, "\
  31 1.23457e+07 1.001k 12.346M 12m 12M 11.8m 12.3M      12m 0000012M"))
  32     {
  33       result = 1;
  34       fputs (" -> WRONG\n", stdout);
  35     }
  36   else
  37     fputs (" -> OK\n", stdout);
  38
  39   sprintf (buf, "%b|%B|%-20.2b|%-10.0b|%-10.8b|%-10.2B|",
  40            V, V, V, V, V, V, V, V, V, V, V);
  41   fputs (buf, stdout);
  42   if (strcmp (buf, "\
  43 11.774m|12.346M|11.77m              |12m       |11.77375614m|12.35M    |"))
  44     {
  45       result = 1;
  46       fputs (" -> WRONG\n", stdout);
  47     }
  48   else
  49     fputs (" -> OK\n", stdout);
  50
  51   sprintf (buf, "%#.0B %*.0b %10.*b %*.*B %10.2B",
  52            V, 2, V, 2, V, 10, 2, V, V);
  53   fputs (buf, stdout);
  54   if (strcmp (buf, "12.M 12m     11.77m     12.35M     12.35M"))
  55     {
  56       result = 1;
  57       fputs (" -> WRONG\n", stdout);
  58     }
  59   else
  60     fputs (" -> OK\n", stdout);
  61
  62   sprintf (buf, "%6B %6.1B %b %B %b %B",
  63            V, V, 1000.0, 1000.0, 1024.0, 1024.0);
  64   fputs (buf, stdout);
  65   if (strcmp (buf, "12.346M  12.3M 1000.000  1.000K 1.000k 1.024K"))
  66     {
  67       result = 1;
  68       fputs (" -> WRONG\n", stdout);
  69     }
  70   else
  71     fputs (" -> OK\n", stdout);
  72
  73   return result;
  74 }