--TEST--
Decimal unary minus operator
--FILE--
<?php
function main(): void {
$a = std::decimal("123.456");
// Unary minus
$b = -$a;
echo $b->toString(); echo "\n";
// Double minus
$c = -$b;
echo $c->toString(); echo "\n";
}
?>
--EXPECT--
-123.456
123.456
