function Assert::natural

@psalm-pure @psalm-assert positive-int|0 $value

Parameters

mixed $value:

string $message:

Throws

InvalidArgumentException

File

vendor/webmozart/assert/src/Assert.php, line 175

Class

Assert

Efficient assertions to validate the input/output of your methods.

Namespace

Webmozart\Assert

Code

public static function natural($value, $message = '') {
    if (!\is_int($value) || $value < 0) {
        static::reportInvalidArgument(\sprintf($message ?: 'Expected a non-negative integer. Got: %s', static::valueToString($value)));
    }
}