/**
* @test
*/
public function check_idempotent_float_number_conversion()
{
$f0 = new FN(12.89);
$this->assertTrue($f0->equals(12.89));
$f = new FN($f0->__toString());
$this->assertTrue($f->equals(12.89));
foreach (range(1, 99) as $i) {
$f = new FN($f->__toString());
$this->assertTrue($f->equals(12.89));
}
$this->assertTrue($f->equals($f0));
}
/**
* @param string|int|float|\Enimiste\Math\VO\FloatNumber $value
*
* @param int $scale
*
* @return \Enimiste\Math\VO\FloatNumber
*/
function as_float_number($value, $scale = 2)
{
if ($value instanceof \Enimiste\Math\VO\FloatNumber) {
return $value->copy($scale);
} else {
if ($scale < 0) {
throw new \RuntimeException('Scale should be >= 0');
}
if ($value instanceof \Enimiste\Math\VO\IntegerNumber) {
$value = $value->__toString();
}
return new \Enimiste\Math\VO\FloatNumber($value, $scale);
}
}
/**
* Check if this number is less than the given value
*
* @param N $other
*
* @return mixed
*/
protected function _lt(N $other)
{
if (!$other instanceof FloatNumber) {
$other = new FloatNumber($other->__toString());
}
$scales = self::getScales($this, $other);
$l = $this->copy($scales[1]);
$r = $other->copy($scales[1]);
$ls = preg_replace("#[^0-9\\-]#", '', $l->__toString());
$rs = preg_replace("#[^0-9\\-]#", '', $r->__toString());
return (new IntegerNumber($ls))->lt(new IntegerNumber($rs));
}
/**
* Sub two Numbers
* $l - $r
*
* @param VONumber $l
* @param VONumber $r
*
* @return VONumber
*/
public function sub(VONumber $l, VONumber $r)
{
if ($l instanceof IntegerNumber && $r instanceof IntegerNumber) {
return new IntegerNumber(bcsub($l->__toString(), $r->__toString()));
} else {
$scale = FloatNumber::getScales($l, $r);
$res = new FloatNumber(bcsub($l->__toString(), $r->__toString(), $scale[1]), $scale[0]);
return $res;
}
}
