stdio-common/bug16.c

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