UselessUpcast.qhelp

<!DOCTYPE qhelp PUBLIC
  "-//Semmle//qhelp//EN"
  "qhelp.dtd">
<qhelp>
<overview>
<p>In most situations, casting an expression where there exists a corresponding implicit conversion
serves no purpose.</p>

</overview>
<recommendation>
<p>Remove the redundant cast.</p>

</recommendation>
<example>
<p>In this example, casting explicitly from <code>Sub</code> to <code>Super</code> is redundant.</p>
<sample src="UselessUpcastBad.cs" />

<p>The code above can be fixed, either by removing the explicit cast, or by making <code>super</code>
an implicitly typed (<code>var</code>) variable.</p>
</example>
<references>

  <li>Microsoft: <a href="https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/types/casting-and-type-conversions">Casting and Type Conversions</a>.</li>

</references>
</qhelp>