title: Unable to find numeric literal operator 'operator""+BLA'
body: <p>I had this:</p>
  
  <pre><code>#define BLA 10
  #define BLABLA (0x3E+BLA)
  </code></pre>
  
  <p>And I am getting:</p>
  
  <blockquote>
    <p>error: unable to find numeric literal operator 'operator""+BLA'</p>
  </blockquote>
  
  <hr>
  
  <p>Example code:</p>
  
  <pre><code>#define BLA 10
  #define BLABLA (0x3E+BLA)
  
  int main()
  {
      return BLABLA;
  }
  </code></pre>
  
  <p>Compile line (g++ Ubuntu 5.4.0-6ubuntu1~16.04.9):</p>
  
  <pre><code>g++ example.cpp -o example
  </code></pre>