ng/method_1.html">Method 1: provide
        member functions and nested types</a></span></dt>
<dt><span class="section"><a href="reference/extending/method_2.html">Method 2: provide
        free-standing functions and specialize metafunctions</a></span></dt>
<dt><span class="section"><a href="reference/extending/method_3.html">Method 3: provide
        range adaptor implementations</a></span></dt>
</dl></dd>
</dl></div>
</div>
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