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   {"0xFFFFFFFFFFFF00FF" , 9223372036854775807ll, 0, 0, ERANGE},
  72   {NULL, 0, 0, 0, 0},
  73
  74   /* Then unsigned.  */
  75   {"  0", 0, 0, 0, 0},
  76   {"0xffffffffg", 0xffffffff, 0, 'g', 0},
  77   {"0xffffffffffffffffg", 0xffffffffffffffffull, 0, 'g', 0},
  78   {"-0xfedcba987654321", 0xf0123456789abcdfull, 0, 0, 0},
  79   {"0xf1f2f3f4f5f6f7f8f9", 0xffffffffffffffffull, 0, 0, ERANGE},
  80   {"-0x123456789abcdef01", 0xffffffffffffffffull, 0, 0, ERANGE},
  81   {NULL, 0, 0, 0, 0},
  82   };
  83
  84 /* Prototypes for local functions.  */
  85 static void expand (char *dst, int c);
  86
  87 int
  88 main (void)
  89 {
  90   register const struct ltest *lt;
  91   char *ep;
  92   int status = 0;
  93   int save_errno;
  94
  95   for (lt = tests; lt->str != NULL; ++lt)
  96     {
  97       register long long int l;
  98
  99       errno = 0;
 100       l = strtoll (lt->str, &ep, lt->base);
 101       save_errno = errno;
 102       printf ("strtoll(\"%s\", , %d) test %u",
 103               lt->str, lt->base, (unsigned int) (lt - tests));
 104       if (l == (long long int) lt->expect && *ep == lt->left
 105           && save_errno == lt->err)
 106         puts("\tOK");
 107       else
 108         {
 109           puts("\tBAD");
 110           if (l != (long long int) lt->expect)
 111             printf("  returns %lld, expected %lld\n",
 112                    l, (long long int) lt->expect);
 113           if (lt->left != *ep)
 114             {
 115               char exp1[5], exp2[5];
 116               expand (exp1, *ep);
 117               expand (exp2, lt->left);
 118               printf ("  leaves '%s', expected '%s'\n", exp1, exp2);
 119             }
 120           if (save_errno != lt->err)
 121             printf ("  errno %d (%s)  instead of %d (%s)\n",
 122                     save_errno, strerror (save_errno),
 123                     lt->err, strerror (lt->err));
 124           status = 1;
 125         }
 126     }
 127
 128   for (++lt; lt->str != NULL; lt++)
 129     {
 130       register unsigned long long int ul;
 131
 132       errno = 0;
 133       ul = strtoull (lt->str, &ep, lt->base);
 134       save_errno = errno;
 135       printf ("strtoull(\"%s\", , %d) test %u",
 136               lt->str, lt->base, (unsigned int) (lt - tests));
 137       if (ul == lt->expect && *ep == lt->left && save_errno == lt->err)
 138         puts("\tOK");
 139       else
 140         {
 141           puts ("\tBAD");
 142           if (ul != lt->expect)
 143             printf ("  returns %llu, expected %llu\n",
 144                     ul, lt->expect);
 145           if (lt->left != *ep)
 146             {
 147               char exp1[5], exp2[5];
 148               expand (exp1, *ep);
 149               expand (exp2, lt->left);
 150               printf ("  leaves '%s', expected '%s'\n", exp1, exp2);
 151             }
 152           if (save_errno != lt->err)
 153             printf ("  errno %d (%s) instead of %d (%s)\n",
 154                     save_errno, strerror (save_errno),
 155                     lt->err, strerror (lt->err));
 156           status = 1;
 157         }
 158     }
 159
 160   exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
 161 }
 162
 163 static void
 164 expand (dst, c)
 165      char *dst;
 166      int c;
 167 {
 168   if (isprint (c))
 169     {
 170       dst[0] = c;
 171       dst[1] = '\0';
 172     }
 173   else
 174     (void) sprintf (dst, "%#.3o", (unsigned int) c);
 175 }