stdlib/tst-strtoll.c

   1 /* My bet is this was written by Chris Torek.
   2    I reformatted and ansidecl-ized it, and tweaked it a little.  */
   3
   4 #include <ctype.h>
   5 #include <stdio.h>
   6 #include <errno.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <limits.h>
  10
  11 struct ltest
  12   {
  13     const char *str;            /* Convert this.  */
  14     unsigned long long int expect;      /* To get this.  */
  15     int base;                   /* Use this base.  */
  16     char left;                  /* With this left over.  */
  17     int err;                    /* And this in errno.  */
  18   };
  19 static const struct ltest tests[] =
  20   {
  21   /* First, signed numbers:  */
  22   /* simple... */
  23   {"123", 123, 0, 0, 0},
  24   {"+123", 123, 0, 0, 0},
  25   {"  123", 123, 0, 0, 0},
  26   {" 123 ", 123, 0, ' ', 0},
  27   {"   -17", -17, 0, 0, 0},
  28
  29   /* implicit base... */
  30   {"0123", 0123, 0, 0, 0},
  31   {"0123a", 0123, 0, 'a', 0},
  32   {"01239", 0123, 0, '9', 0},
  33   {"0x123", 0x123, 0, 0, 0},
  34   {"-0x123", -0x123, 0, 0, 0},
  35   {"0x0xc", 0, 0, 'x', 0},
  36   {" +0x123fg", 0x123f, 0, 'g', 0},
  37
  38   /* explicit base... */
  39   {"123", 0x123, 16, 0, 0},
  40   {"0x123", 0x123, 16, 0, 0},
  41   {"123", 0123, 8, 0, 0},
  42   {"0123", 0123, 8, 0, 0},
  43   {"0123", 123, 10, 0, 0},
  44   {"0x123", 0, 10, 'x', 0},
  45
  46   /* case insensitivity... */
  47   {"abcd", 0xabcd, 16, 0, 0},
  48   {"AbCd", 0xabcd, 16, 0, 0},
  49   {"0xABCD", 0xabcd, 16, 0, 0},
  50   {"0Xabcd", 0xabcd, 16, 0, 0},
  51
  52   /* odd bases... */
  53   {"0xyz", 33 * 35 + 34, 35, 'z', 0},
  54   {"yz!", 34 * 36 + 35, 36, '!', 0},
  55   {"-yz", -(34*36 + 35), 36, 0, 0},
  56   {"GhI4", ((16*20 + 17)*20 + 18)*20 + 4, 20, 0, 0},
  57
  58   /* special case for the 32-bit version of strtoll,
  59      from a ncftp configure test */
  60   {"99000000001", 1000000000ll * 99ll + 1ll, 0, 0},
  61
  62   /* extremes... */
  63   {"9223372036854775807", 9223372036854775807ll, 0, 0, 0},
  64   {"9223372036854775808", 9223372036854775807ll, 0, 0, ERANGE},
  65   {"922337203685477580777", 9223372036854775807ll, 0, 0, ERANGE},
  66   {"9223372036854775810", 9223372036854775807ll, 0, 0, ERANGE},
  67   {"-2147483648", -2147483648ll, 0, 0, 0},
  68   {"-9223372036854775808", -9223372036854775807ll - 1, 0, 0, 0},
  69   {"-9223372036854775809", -9223372036854775807ll - 1, 0, 0, ERANGE},
  70   {"0x112233445566778899z", 9223372036854775807ll, 16, 'z', ERANGE},
  71   {NULL, 0, 0, 0, 0},
  72
  73   /* Then unsigned.  */
  74   {"  0", 0, 0, 0, 0},
  75   {"0xffffffffg", 0xffffffff, 0, 'g', 0},
  76   {"0xffffffffffffffffg", 0xffffffffffffffffull, 0, 'g', 0},
  77   {"-0xfedcba987654321", 0xf0123456789abcdfull, 0, 0, 0},
  78   {"0xf1f2f3f4f5f6f7f8f9", 0xffffffffffffffffull, 0, 0, ERANGE},
  79   {"-0x123456789abcdef01", 0xffffffffffffffffull, 0, 0, ERANGE},
  80   {NULL, 0, 0, 0, 0},
  81   };
  82
  83 static void expand __P ((char *dst, int c));
  84
  85 int
  86 main (int argc, char ** argv)
  87 {
  88   register const struct ltest *lt;
  89   char *ep;
  90   int status = 0;
  91   int save_errno;
  92
  93   for (lt = tests; lt->str != NULL; ++lt)
  94     {
  95       register long long int l;
  96
  97       errno = 0;
  98       l = strtoll (lt->str, &ep, lt->base);
  99       save_errno = errno;
 100       printf ("strtoll(\"%s\", , %d) test %u",
 101               lt->str, lt->base, (unsigned int) (lt - tests));
 102       if (l == (long long int) lt->expect && *ep == lt->left
 103           && save_errno == lt->err)
 104         puts("\tOK");
 105       else
 106         {
 107           puts("\tBAD");
 108           if (l != (long long int) lt->expect)
 109             printf("  returns %lld, expected %lld\n",
 110                    l, (long long int) lt->expect);
 111           if (lt->left != *ep)
 112             {
 113               char exp1[5], exp2[5];
 114               expand (exp1, *ep);
 115               expand (exp2, lt->left);
 116               printf ("  leaves '%s', expected '%s'\n", exp1, exp2);
 117             }
 118           if (save_errno != lt->err)
 119             printf ("  errno %d (%s)  instead of %d (%s)\n",
 120                     save_errno, strerror (save_errno),
 121                     lt->err, strerror (lt->err));
 122           status = 1;
 123         }
 124     }
 125
 126   for (++lt; lt->str != NULL; lt++)
 127     {
 128       register unsigned long long int ul;
 129
 130       errno = 0;
 131       ul = strtoull (lt->str, &ep, lt->base);
 132       save_errno = errno;
 133       printf ("strtoull(\"%s\", , %d) test %u",
 134               lt->str, lt->base, (unsigned int) (lt - tests));
 135       if (ul == lt->expect && *ep == lt->left && save_errno == lt->err)
 136         puts("\tOK");
 137       else
 138         {
 139           puts ("\tBAD");
 140           if (ul != lt->expect)
 141             printf ("  returns %llu, expected %llu\n",
 142                     ul, lt->expect);
 143           if (lt->left != *ep)
 144             {
 145               char exp1[5], exp2[5];
 146               expand (exp1, *ep);
 147               expand (exp2, lt->left);
 148               printf ("  leaves '%s', expected '%s'\n", exp1, exp2);
 149             }
 150           if (save_errno != lt->err)
 151             printf ("  errno %d (%s) instead of %d (%s)\n",
 152                     save_errno, strerror (save_errno),
 153                     lt->err, strerror (lt->err));
 154           status = 1;
 155         }
 156     }
 157
 158   exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
 159 }
 160
 161 static void
 162 expand (dst, c)
 163      char *dst;
 164      int c;
 165 {
 166   if (isprint (c))
 167     {
 168       dst[0] = c;
 169       dst[1] = '\0';
 170     }
 171   else
 172     (void) sprintf (dst, "%#.3o", (unsigned int) c);
 173 }