title: Putting int8 into byte array
body: <p>I have the following byte array:</p>
  
  <pre><code>buf := make([]byte, 1)
  var value int8
  value = 45
  buf[0] = value // cannot use type int8 as type []byte in assignment
  </code></pre>
  
  <p>And when I want to put a char value into the byte array I get the error that I <code>cannot use type int8 as type []byte in assignment</code>. What's wrong? How do I do this?</p>