stdlib/tst-strtol.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 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 #if LONG_MAX == 0x7fffffff
  22     /* First, signed numbers.  */
  23     { "   -17",         -17,            0,      0,      0 },
  24     { " +0x123fg",      0x123f,         0,      'g',    0 },
  25     { "2147483647",     2147483647,     0,      0,      0 },
  26     { "2147483648",     2147483647,     0,      0,      ERANGE },
  27     { "214748364888",   2147483647,     0,      0,      ERANGE },
  28     { "2147483650",     2147483647,     0,      0,      ERANGE },
  29     { "-2147483649",    0x80000000,     0,      0,      ERANGE },
  30     { "-2147483648",    0x80000000,     0,      0,      0 },
  31     { "0123",           0123,           0,      0,      0 },
  32     { "0x1122334455z",  2147483647,     16,     'z',    ERANGE },
  33     { "0x0xc",          0,              0,      'x',    0 },
  34     { "yz!",            34*36+35,       36,     '!',    0 },
  35     { NULL,             0,              0,      0,      0 },
  36
  37     /* Then unsigned.  */
  38     { "  0",            0,              0,      0,      0 },
  39     { "0xffffffffg",    0xffffffff,     0,      'g',    0 },
  40     { "0xf1f2f3f4f5",   0xffffffff,     0,      0,      ERANGE },
  41     { "-0x123456789",   0xffffffff,     0,      0,      ERANGE },
  42     { "-0xfedcba98",    0x01234568,     0,      0,      0 },
  43     { NULL,             0,              0,      0,      0 },
  44 #else
  45     /* assume 64 bit long... */
  46
  47     /* First, signed numbers.  */
  48     { "   -17",                 -17,            0,      0,      0 },
  49     { " +0x123fg",              0x123f,         0,      'g',    0 },
  50     { "2147483647",             2147483647,     0,      0,      0 },
  51     { "9223372036854775807",    9223372036854775807,    0,      0,      0 },
  52     { "9223372036854775808",    9223372036854775807,    0,      0,      ERANGE },
  53     { "922337203685477580777",  9223372036854775807,    0,      0,      ERANGE },
  54     { "9223372036854775810",    9223372036854775807,    0,      0,      ERANGE },
  55     { "-2147483648",            -2147483648,    0,      0,      0 },
  56     { "-9223372036854775808",   -9223372036854775808,   0,      0,      0 },
  57     { "-9223372036854775809",   -9223372036854775808,   0,      0,      ERANGE },
  58     { "0123",           0123,           0,      0,      0 },
  59     { "0x112233445566778899z",  9223372036854775807,    16,     'z',    ERANGE },
  60     { "0x0xc",          0,              0,      'x',    0 },
  61     { "yz!",            34*36+35,       36,     '!',    0 },
  62     { NULL,             0,              0,      0,      0 },
  63
  64     /* Then unsigned.  */
  65     { "  0",            0,              0,      0,      0 },
  66     { "0xffffffffg",    0xffffffff,     0,      'g',    0 },
  67     { "0xffffffffffffffffg",    0xffffffffffffffff,     0,      'g',    0 },
  68     { "0xf1f2f3f4f5f6f7f8f9",   0xffffffffffffffff,     0,      0,      ERANGE },
  69     { "-0x123456789abcdef01",   0xffffffffffffffff,     0,      0,      ERANGE },
  70     { "-0xfedcba987654321",     0xf0123456789abcdf,     0,      0,      0 },
  71     { NULL,             0,              0,      0,      0 },
  72 #endif
  73   };
  74
  75 static void expand __P ((char *dst, int c));
  76
  77 int
  78 main (int argc, char ** argv)
  79 {
  80   register const struct ltest *lt;
  81   char *ep;
  82   int status = 0;
  83   int save_errno;
  84
  85   for (lt = tests; lt->str != NULL; ++lt)
  86     {
  87       register long int l;
  88
  89       errno = 0;
  90       l = strtol (lt->str, &ep, lt->base);
  91       save_errno = errno;
  92       printf ("strtol(\"%s\", , %d) test %u",
  93               lt->str, lt->base, (unsigned int) (lt - tests));
  94       if (l == (long int) lt->expect && *ep == lt->left
  95           && save_errno == lt->err)
  96         puts("\tOK");
  97       else
  98         {
  99           puts("\tBAD");
 100           if (l != (long int) lt->expect)
 101             printf("  returns %ld, expected %ld\n",
 102                    l, (long int) lt->expect);
 103           if (lt->left != *ep)
 104             {
 105               char exp1[5], exp2[5];
 106               expand (exp1, *ep);
 107               expand (exp2, lt->left);
 108               printf ("  leaves '%s', expected '%s'\n", exp1, exp2);
 109             }
 110           if (save_errno != lt->err)
 111             printf ("  errno %d (%s)  instead of %d (%s)\n",
 112                     save_errno, strerror (save_errno),
 113                     lt->err, strerror (lt->err));
 114           status = 1;
 115         }
 116     }
 117
 118   for (++lt; lt->str != NULL; lt++)
 119     {
 120       register unsigned long int ul;
 121
 122       errno = 0;
 123       ul = strtoul (lt->str, &ep, lt->base);
 124       save_errno = errno;
 125       printf ("strtoul(\"%s\", , %d) test %u",
 126               lt->str, lt->base, (unsigned int) (lt - tests));
 127       if (ul == lt->expect && *ep == lt->left && save_errno == lt->err)
 128         puts("\tOK");
 129       else
 130         {
 131           puts ("\tBAD");
 132           if (ul != lt->expect)
 133             printf ("  returns %lu, expected %lu\n",
 134                     ul, lt->expect);
 135           if (lt->left != *ep)
 136             {
 137               char exp1[5], exp2[5];
 138               expand (exp1, *ep);
 139               expand (exp2, lt->left);
 140               printf ("  leaves '%s', expected '%s'\n", exp1, exp2);
 141             }
 142           if (save_errno != lt->err)
 143             printf ("  errno %d (%s) instead of %d (%s)\n",
 144                     save_errno, strerror (save_errno),
 145                     lt->err, strerror (lt->err));
 146           status = 1;
 147         }
 148     }
 149
 150   exit (status ? EXIT_FAILURE : EXIT_SUCCESS);
 151 }
 152
 153 static void
 154 expand (dst, c)
 155      char *dst;
 156      int c;
 157 {
 158   if (isprint (c))
 159     {
 160       dst[0] = c;
 161       dst[1] = '\0';
 162     }
 163   else
 164     (void) sprintf (dst, "%#.3o", (unsigned int) c);
 165 }