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POWhy do several of the standard operators not have standard functors?
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copied!<p>We have:</p> <ul> <li><code>std::plus</code> (<code>+</code>)</li> <li><code>std::minus</code> (<code>-</code>)</li> <li><code>std::multiplies</code> (<code>*</code>)</li> <li><code>std::divides</code> (<code>/</code>)</li> <li><code>std::modulus</code> (<code>%</code>)</li> <li><code>std::negate</code> (<code>-</code>)</li> <li><code>std::logical_or</code> (<code>||</code>)</li> <li><code>std::logical_not</code> (<code>!</code>)</li> <li><code>std::logical_and</code> (<code>&&</code>)</li> <li><code>std::equal_to</code> (<code>==</code>)</li> <li><code>std::not_equal_to</code> (<code>!=</code>)</li> <li><code>std::less</code> (<code><</code>)</li> <li><code>std::greater</code> (<code>></code>)</li> <li><code>std::less_equal</code> (<code><=</code>)</li> <li><code>std::greater_equal</code> (<code>>=</code>)</li> </ul> <p>We don't have functors for:</p> <ul> <li><code>&</code> (address-of)</li> <li><code>*</code> (dereference)</li> <li><code>[]</code></li> <li><code>,</code></li> <li>bitwise operators <code>~</code>, <code>&</code>, <code>|</code>, <code>^</code>, <code><<</code>, <code>>></code></li> <li><code>++</code> (prefix/postfix) / <code>--</code> (prefix/postfix)</li> <li><code>sizeof</code></li> <li><code>static_cast</code> / <code>dynamic_cast</code> / <code>reinterpret_cast</code> / <code>const_cast</code></li> <li>c style casts</li> <li><code>new</code> / <code>new[]</code> / <code>delete</code> / <code>delete[]</code></li> <li>all of the member function pointer operators</li> <li>all of the compound assignment operators.</li> </ul> <p>Is there a reason we don't have those, or is it just an oversight?</p>

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