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 <strings.h>
   9
  10 struct ltest
  11   {
  12     const char *str;            /* Convert this.  */
  13     unsigned long int expect;   /* To get this.  */
  14     int base;                   /* Use this base.  */
  15     char left;                  /* With this left over.  */
  16     int err;                    /* And this in errno.  */
  17   };
  18 static const struct ltest tests[] =
  19   {
  20 #if ~0UL == 0xffffffff
  21     /* First, signed numbers.  */
  22     { "   -17",         -17,            0,      0,      0 },
  23     { " +0x123fg",      0x123f,         0,      'g',    0 },
  24     { "2147483647",     2147483647,     0,      0,      0 },
  25     { "2147483648",     2147483647,     0,      0,      ERANGE },
  26     { "214748364888",   2147483647,     0,      0,      ERANGE },
  27     { "2147483650",     2147483647,     0,      0,      ERANGE },
  28     { "-2147483649",    -2147483648,    0,      0,      ERANGE },
  29     { "-2147483648",    -2147483648,    0,      0,      0 },
  30     { "0123",           0123,           0,      0,      0 },
  31     { "0x1122334455z",  2147483647,     16,     'z',    ERANGE },
  32     { "0x0xc",          0,              0,      'x',    0 },
  33     { "yz!",            34*36+35,       36,     '!',    0 },
  34     { NULL,             0,              0,      0,      0 },
  35
  36     /* Then unsigned.  */
  37     { "  0",            0,              0,      0,      0 },
  38     { "0xffffffffg",    0xffffffff,     0,      'g',    0 },
  39     { "0xf1f2f3f4f5",   0xffffffff,     0,      0,      ERANGE },
  40     { "-0x123456789",   0,              0,      0,      EINVAL },
  41     { "-0xfedcba98",    0,              0,      0,      EINVAL },
  42     { NULL,             0,              0,      0,      0 },
  43 #else
  44     /* assume 64 bit long... */
  45
  46     /* First, signed numbers.  */
  47     { "   -17",                 -17,            0,      0,      0 },
  48     { " +0x123fg",              0x123f,         0,      'g',    0 },
  49     { "2147483647",             2147483647,     0,      0,      0 },
  50     { "9223372036854775807",    9223372036854775807,    0,      0,      0 },
  51     { "9223372036854775808",    9223372036854775807,    0,      0,      ERANGE },
  52     { "922337203685477580777",  9223372036854775807,    0,      0,      ERANGE },
  53     { "9223372036854775810",    9223372036854775807,    0,      0,      ERANGE },
  54     { "-2147483648",            -2147483648,    0,      0,      0 },
  55     { "-9223372036854775808",   -9223372036854775808,   0,      0,      0 },
  56     { "-9223372036854775809",   -9223372036854775808,   0,      0,      ERANGE },
  57     { "0123",           0123,           0,      0,      0 },
  58     { "0x112233445566778899z",  9223372036854775807,    16,     'z',    ERANGE },
  59     { "0x0xc",          0,              0,      'x',    0 },
  60     { "yz!",            34*36+35,       36,     '!',    0 },
  61     { NULL,             0,              0,      0,      0 },
  62
  63     /* Then unsigned.  */
  64     { "  0",            0,              0,      0,      0 },
  65     { "0xffffffffg",    0xffffffff,     0,      'g',    0 },
  66     { "0xffffffffffffffffg",    0xffffffffffffffff,     0,      'g',    0 },
  67     { "0xf1f2f3f4f5f6f7f8f9",   0xffffffffffffffff,     0,      0,      ERANGE },
  68     { "-0x123456789abcdef01",   0,                      0,      0,      EINVAL },
  69     { "-0xfedcba987654321",     0,                      0,      0,      EINVAL },
  70     { NULL,             0,              0,      0,      0 },
  71 #endif
  72   };
  73
  74 static void expand __P ((char *dst, int c));
  75
  76 int
  77 main (int argc, char ** argv)
  78 {
  79   register const struct ltest *lt;
  80   char *ep;
  81   int status = 0;
  82
  83   for (lt = tests; lt->str != NULL; ++lt)
  84     {
  85       register long int l;
  86
  87       errno = 0;
  88       l = strtol(lt->str, &ep, lt->base);
  89       printf("strtol(\"%s\", , %d) test %u",
  90              lt->str, lt->base, (unsigned int) (lt - tests));
  91       if (l == (long int) lt->expect && *ep == lt->left && errno == lt->err)
  92         puts("\tOK");
  93       else
  94         {
  95           puts("\tBAD");
  96           if (l != (long int) lt->expect)
  97             printf("  returns %ld, expected %ld\n",
  98                    l, (long int) lt->expect);
  99           if (lt->left != *ep)
 100             {
 101               char exp1[5], exp2[5];
 102               expand(exp1, *ep);
 103               expand(exp2, lt->left);
 104               printf("  leaves '%s', expected '%s'\n", exp1, exp2);
 105             }
 106           if (errno != lt->err)
 107             printf("  errno %d (%s)  instead of %d (%s)\n",
 108                    errno, strerror(errno), lt->err, strerror(lt->err));
 109           status = 1;
 110         }
 111     }
 112
 113   for (++lt; lt->str != NULL; lt++)
 114     {
 115       register unsigned long int ul;
 116
 117       errno = 0;
 118       ul = strtoul(lt->str, &ep, lt->base);
 119       printf("strtoul(\"%s\", , %d) test %u",
 120              lt->str, lt->base, (unsigned int) (lt - tests));
 121       if (ul == lt->expect && *ep == lt->left && errno == lt->err)
 122         puts("\tOK");
 123       else
 124         {
 125           puts("\tBAD");
 126           if (ul != lt->expect)
 127             printf("  returns %lu, expected %lu\n",
 128                    ul, lt->expect);
 129           if (lt->left != *ep)
 130             {
 131               char exp1[5], exp2[5];
 132               expand(exp1, *ep);
 133               expand(exp2, lt->left);
 134               printf("  leaves '%s', expected '%s'\n", exp1, exp2);
 135             }
 136           if (errno != lt->err)
 137             printf("  errno %d (%s) instead of %d (%s)\n",
 138                    errno, strerror(errno), lt->err, strerror(lt->err));
 139           status = 1;
 140         }
 141     }
 142
 143   exit(status ? EXIT_FAILURE : EXIT_SUCCESS);
 144 }
 145
 146 static void
 147 expand (dst, c)
 148      char *dst;
 149      int c;
 150 {
 151   if (isprint(c))
 152     {
 153       dst[0] = c;
 154       dst[1] = '\0';
 155     }
 156   else
 157     (void) sprintf(dst, "%#.3o", (unsigned int) c);
 158 }