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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">17.1&nbsp;&nbsp;Operator Overloading - member vs.
	global</font></h2>
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<ul>
	<li>Some operators (e.g., assignment) are required to be members</li>
	<li>Usually programmer has the choice</li>
	<li>Keep in mind:
		<ol>
			<li>Non-members have only public access (or, make it a friend)</li>
			<li>No implicit conversion for implicit parameters</li>
		</ol>
	</li>
	<li>Member function is preferable if
		<ul>
			<li>The left argument is modified (<tt>+=</tt>)</li>
			<li>The data fields are not easily accessible</li>
		</ul>
	</li>
</ul>

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