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📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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<h2><font color="#009999">17.8 Overloading Conversion Operators</font></h2>
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<ul>
	<li>Conversion <i>to</i> a user-defined type is handled by constructors

		<p><b>E.g.:</b>  <tt>Fraction</tt> has a constructor that takes a
			single integer.  This is okay:

		<blockquote><tt>
			Fraction a(3,4), b;<br>
			b = a + 2;&nbsp;&nbsp;<font color="#0000cc">// Addition of Fraction and integer</font>
		</tt></blockquote>

		<p>The assignment statement becomes</p>
		<blockquote><tt>
			b = a + Fraction(2);<br>
				<font color="#0000cc">// Convert right operand to Fraction, then add</font>
		</tt></blockquote>
	</li>
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