, then the conversions between the values of them can be implicit.
</div>
<p></p>
<div class="tmd-usual">
Given struct types <code class="tmd-code-span">S0</code>, <code class="tmd-code-span">S1</code>, <code class="tmd-code-span">S2</code>, <code class="tmd-code-span">S3</code> and <code class="tmd-code-span">S4</code> in the following code snippet,
</div>
<ul class="tmd-list">
<li class="tmd-list-item">
<div class="tmd-usual">
values of type <code class="tmd-code-span">S0</code> can't be converted to the 