/**
* Answer a new object with the value zero
*
* @param optional string $class The class to instantiate. Do NOT use outside
* of this package.
* @return object ByteSize
* @access public
* @static
* @since 7/14/05
*/
static function zero($class = 'ByteSize')
{
return parent::zero($class);
}
/**
* Answer the integer nearest the receiver toward negative infinity.
*
* @return object Number
* @access public
* @since 7/14/05
*/
function floor()
{
$truncation = $this->truncated();
if ($this->isGreaterThanOrEqualTo(Integer::zero())) {
return $truncation;
} else {
if ($this->isEqualTo($truncation)) {
return $truncation;
} else {
return $truncation->minus(Integer::withValue(1));
}
}
}
