>int</code> type was also used to hold Unicode code points: each code point would waste an extra 32 bits of storage if <code>int</code> grew from 32 bits to 64.
</p>

<p>
To make changing to 64-bit <code>int</code> feasible,
Go 1 introduces a new basic type, <code>rune</code>, to represent
individual Unicode code points.
It is an alias for <code>int32</code>, analogous to <code>byte</code>
as an alias for <code>uint8</code>.
</p>

<p>
Character literals such as <code>'a'</code>, <code>'語'</code>, and <cod