Throw error, if bcmath is missing

Author: ro-pi

src/Type/Number.php

@@ -23,49 +23,49 @@ public function __construct(string $value)
 
     public function add(NumberInterface $addend): self
     {
-        $this->value = bcadd($this->value, (string) $addend, static::PRECISION);
+        $this->value = \bcadd($this->value, (string) $addend, static::PRECISION);
         return $this;
     }
 
     public function sub(NumberInterface $subtrahend): self
     {
-        $this->value = bcsub($this->value, (string) $subtrahend, static::PRECISION);
+        $this->value = \bcsub($this->value, (string) $subtrahend, static::PRECISION);
         return $this;
     }
 
     public function mul(NumberInterface $multiplicand): self
     {
-        $this->value = bcmul($this->value, (string) $multiplicand, static::PRECISION);
+        $this->value = \bcmul($this->value, (string) $multiplicand, static::PRECISION);
         return $this;
     }
 
     public function div(NumberInterface $divisor): self
     {
-        $this->value = bcdiv($this->value, (string) $divisor, static::PRECISION);
+        $this->value = \bcdiv($this->value, (string) $divisor, static::PRECISION);
         return $this;
     }
 
     public function pow(NumberInterface $exponent): self
     {
-        $this->value = bcpow($this->value, (string) $exponent, static::PRECISION);
+        $this->value = \bcpow($this->value, (string) $exponent, static::PRECISION);
         return $this;
     }
 
     public function mod(NumberInterface $divisor): self
     {
-        $this->value = bcmod($this->value, (string) $divisor, static::PRECISION);
+        $this->value = \bcmod($this->value, (string) $divisor, static::PRECISION);
         return $this;
     }
 
     public function sqrt(): self
     {
-        $this->value = bcsqrt($this->value, static::PRECISION);
+        $this->value = \bcsqrt($this->value, static::PRECISION);
         return $this;
     }
 
     public function compare(NumberInterface $operand): int
     {
-        return bccomp($this->value, (string) $operand, static::PRECISION);
+        return \bccomp($this->value, (string) $operand, static::PRECISION);
     }
 
     public function equals(NumberInterface $operand): bool
@@ -101,7 +101,7 @@ public function isInteger(): bool
             return true;
         }
 
-        return bccomp($parts[1], '0') === 0;
+        return \bccomp($parts[1], '0') === 0;
     }
 
     public function __toString(): string
@@ -112,8 +112,12 @@ public function __toString(): string
     protected function parseBcMathNumber(string $string): ?string
     {
         try {
-            return bcadd($string, '0', static::PRECISION);
-        } catch (\Throwable) {
+            return \bcadd($string, '0', static::PRECISION);
+        } catch (\Throwable $throwable) {
+            if (!function_exists('bcadd')) {
+                throw $throwable;
+            }
+
             // not well-formed number
         }