Function with_distinct_values

tools/ipptool.c:5668–5786

 */

static int				// O - 1 if distinct, 0 if duplicate
with_distinct_values(
    cups_array_t    *errors,		// I - Array of errors
    ipp_attribute_t *attr)		// I - Attribute to test
{
  int		i,			// Looping var
		count;			// Number of values
  ipp_tag_t	value_tag;		// Value syntax
  const char	*value;			// Current value
  char		buffer[8192];		// Temporary buffer
  cups_array_t	*values;		// Array of values as strings


  // If there is only 1 value, it must be distinct
  if ((count = ippGetCount(attr)) == 1)
    return (1);

  // Only check integers, enums, rangeOfInteger, resolution, and nul-terminated
  // strings...
  switch (value_tag = ippGetValueTag(attr))
  {
    case IPP_TAG_INTEGER :
    case IPP_TAG_ENUM :
    case IPP_TAG_RANGE :
    case IPP_TAG_RESOLUTION :
    case IPP_TAG_KEYWORD :
    case IPP_TAG_URISCHEME :
    case IPP_TAG_CHARSET :
    case IPP_TAG_LANGUAGE :
    case IPP_TAG_MIMETYPE :
    case IPP_TAG_BEGIN_COLLECTION :
        break;

    default :
        add_stringf(errors, "WITH-DISTINCT-VALUES %s not supported for 1setOf %s", ippGetName(attr), ippTagString(value_tag));
        return (0);
  }

  // Collect values and determine they are all unique...
  values = cupsArrayNew3((cups_array_func_t)strcmp, NULL, NULL, 0, (cups_acopy_func_t)strdup, (cups_afree_func_t)free);

  for (i = 0; i < count; i ++)
  {
    switch (value_tag)
    {
      case IPP_TAG_INTEGER :
      case IPP_TAG_ENUM :
          snprintf(buffer, sizeof(buffer), "%d", ippGetInteger(attr, i));
          value = buffer;
          break;
      case IPP_TAG_RANGE :
          {
            int upper, lower = ippGetRange(attr, i, &upper);
					// Range values

            snprintf(buffer, sizeof(buffer), "%d-%d", lower, upper);
            value = buffer;
	  }