stdlib/tst-strtod2.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 struct test
   5 {
   6   const char *str;
   7   double result;
   8   size_t offset;
   9 } tests[] =
  10 {
  11   { "0xy", 0.0, 1 },
  12   { "0x.y", 0.0, 1 },
  13   { "0x0.y", 0.0, 4 },
  14   { "0x.0y", 0.0, 4 },
  15   { ".y", 0.0, 0 },
  16   { "0.y", 0.0, 2 },
  17   { ".0y", 0.0, 2 }
  18 };
  19
  20 static int
  21 do_test (void)
  22 {
  23   int status = 0;
  24   for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); ++i)
  25     {
  26       char *ep;
  27       double r = strtod (tests[i].str, &ep);
  28       if (r != tests[i].result)
  29         {
  30           printf ("test %zu r = %g, expect %g\n", i, r, tests[i].result);
  31           status = 1;
  32         }
  33       if (ep != tests[i].str + tests[i].offset)
  34         {
  35           printf ("test %zu strtod parsed %ju characters, expected %zu\n",
  36                   i, ep - tests[i].str, tests[i].offset);
  37           status = 1;
  38         }
  39     }
  40   return status;
  41 }
  42
  43 #define TEST_FUNCTION do_test ()
  44 #include "../test-skeleton.c"