Add ceil, floor and abs

Author: chapterjason

src/Model/AbstractUnit.php

@@ -145,6 +145,27 @@ public function round(int $precision = 0, \RoundingMode $mode = \RoundingMode::H
         return new static($this->value->round($precision, $mode));
     }
 
+    public function ceil(): static
+    {
+        return new static($this->value->round(0, \RoundingMode::AwayFromZero));
+    }
+
+    public function floor(): static
+    {
+        return new static($this->value->round(0, \RoundingMode::TowardsZero));
+    }
+
+    public function abs(): static
+    {
+        $value = $this->value->value;
+
+        if (str_starts_with($value, '-')) {
+            $value = substr($value, 1);
+        }
+
+        return new static($value);
+    }
+
     /**
      * @return array<string, class-string<UnitInterface>>
      */

src/Model/UnitInterface.php

@@ -24,6 +24,12 @@ public function format(?int $precision = null, ?\RoundingMode $mode = null): str
 
     public function round(int $precision = 0, \RoundingMode $mode = \RoundingMode::HalfAwayFromZero): static;
 
+    public function ceil(): static;
+
+    public function floor(): static;
+
+    public function abs(): static;
+
     public function convert(string $targetUnitClassOrType): self;
 
     public function normalize(): self;