path: root/stdlib/tst-strtol.c

/* My bet is this was written by Chris Torek.
   I reformatted and ansidecl-ized it, and tweaked it a little.  */

#include <ctype.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>

struct ltest
  {
    const char *str;		/* Convert this.  */
    unsigned long int expect;	/* To get this.  */
    int base;			/* Use this base.  */
    char left;			/* With this left over.  */
    int err;			/* And this in errno.  */
  };
static const struct ltest tests[] =
  {
  /* First, signed numbers:  */
  /* simple... */
  {"123", 123, 0, 0, 0},
  {"+123", 123, 0, 0, 0},
  {"  123", 123, 0, 0, 0},
  {" 123 ", 123, 0, ' ', 0},
  {"   -17", -17, 0, 0, 0},

  /* implicit base... */
  {"0123", 0123, 0, 0, 0},
  {"0123a", 0123, 0, 'a', 0},
  {"01239", 0123, 0, '9', 0},
  {"0x123", 0x123, 0, 0, 0},
  {"-0x123", -0x123, 0, 0, 0},
  {"0x0xc", 0, 0, 'x', 0},
  {" +0x123fg", 0x123f, 0, 'g', 0},

  /* explicit base... */
  {"123", 0x123, 16, 0, 0},
  {"0x123", 0x123, 16, 0, 0},
  {"123", 0123, 8, 0, 0},
  {"0123", 0123, 8, 0, 0},
  {"0123", 123, 10, 0, 0},
  {"0x123", 0, 10, 'x', 0},

  /* case insensitivity... */
  {"abcd", 0xabcd, 16, 0, 0},
  {"AbCd", 0xabcd, 16, 0, 0},
  {"0xABCD", 0xabcd, 16, 0, 0},
  {"0Xabcd", 0xabcd, 16, 0, 0},

  /* odd bases... */
  {"0xyz", 33 * 35 + 34, 35, 'z', 0},
  {"yz!", 34 * 36 + 35, 36, '!', 0},
  {"-yz", -(34*36 + 35), 36, 0, 0},
  {"GhI4", ((16*20 + 17)*20 + 18)*20 + 4, 20, 0, 0},

  /* extremes... */
#if LONG_MAX == 0x7fffffff
  {"2147483647", 2147483647, 0, 0, 0},
  {"2147483648", 2147483647, 0, 0, ERANGE},
  {"214748364888", 2147483647, 0, 0, ERANGE},
  {"2147483650", 2147483647, 0, 0, ERANGE},
  {