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<?php
declare(strict_types=1);
namespace Doctrine\Annotations\Type\Constant;
use Doctrine\Annotations\Type\ConstantScalarType;
use Doctrine\Annotations\Type\FloatType;
use function abs;
use function is_float;
use function sprintf;
/**
* @internal
*/
final class ConstantFloatType extends FloatType implements ConstantScalarType
{
/** Maximum tolerance boundary for float value accuracy. */
private const EPSILON = 1e-15;
/** @var float */
private $value;
public function __construct(float $value)
$this->value = $value;
}
public function describe() : string
return sprintf('%F', $this->value);
* @param mixed $value
public function validate($value) : bool
// Due to IEEE 754 float representation, comparisons are inaccurate so we need some level of tolerance.
return is_float($value) && abs($value - $this->value) < self::EPSILON;
doctrine /
annotations
