for      { S() }    is the same as    for true     { S() }
</pre>

<h4 id="For_range">For statements with <code>range</code> clause</h4>

<p>
A "for" statement with a "range" clause
iterates through all entries of an array, slice, string or map,
or values received on a channel. For each entry it assigns <i>iteration values</i>
to corresponding <i>iteration variables</i> if present and then executes the block.
</p>

variables rather than sharing the same variables in each iteration.
</li>
<li>
A "for" statement with <a href="#For_range">"range" clause</a> may iterate over
integer values from zero to an upper limit.
</li>
</ul>

<h3 id="Type_unification_rules">Type unification rules</h3>

<p>
The type unification rules describe if and how two types unify.