stdio-common/bug16.c

   1 #include <array_length.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4
   5 struct
   6 {
   7   long double val;
   8   const char str[4][7];
   9 } tests[] =
  10 {
  11   { 0x0.FFFFp+0L, { "0X1P+0", "0X2P-1", "0X4P-2", "0X8P-3" } },
  12   { 0x0.FFFFp+1L, { "0X1P+1", "0X2P+0", "0X4P-1", "0X8P-2" } },
  13   { 0x0.FFFFp+2L, { "0X1P+2", "0X2P+1", "0X4P+0", "0X8P-1" } },
  14   { 0x0.FFFFp+3L, { "0X1P+3", "0X2P+2", "0X4P+1", "0X8P+0" } }
  15 };
  16
  17 static int
  18 do_test (void)
  19 {
  20   char buf[100];
  21   int ret = 0;
  22
  23   for (size_t i = 0; i < array_length (tests); ++i)
  24     {
  25       snprintf (buf, sizeof (buf), "%.0LA", tests[i].val);
  26
  27       size_t j;
  28       for (j = 0; j < 4; ++j)
  29         if (strcmp (buf, tests[i].str[j]) == 0)
  30           break;
  31
  32       if (j == 4)
  33         {
  34           printf ("%zd: got \"%s\", expected \"%s\" or equivalent\n",
  35                   i, buf, tests[i].str[0]);
  36           ret = 1;
  37         }
  38     }
  39
  40   return ret;
  41 }
  42
  43 #define TEST_FUNCTION do_test ()
  44 #include "../test-skeleton.c"