<?php

namespace PhpAmqpLib\Wire;

  /**
   * AMQP protocol decimal value.
   *
   * Values are represented as (n,e) pairs. The actual value
   * is n * 10^(-e).
   *
   * From 0.8 spec: Decimal values are
   * not intended to support floating point values, but rather
   * business values such as currency rates and amounts. The
   * 'decimals' octet is not signed.
  */
class AMQPDecimal
{
    public function __construct($n, $e)
    {
        if($e < 0)
            throw new \Exception("Decimal exponent value must be unsigned!");
        $this->n = $n;
        $this->e = $e;
    }

    public function asBCvalue()
    {
        return bcdiv($this->n, bcpow(10,$this->e));
    }
}