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| <h4 class="subsection">3.7.4 C++ Named Operators</h4> |
| |
| <p><a name="index-named-operators-65"></a><a name="index-C_002b_002b-named-operators-66"></a><a name="index-iso646_002eh-67"></a> |
| In C++, there are eleven keywords which are simply alternate spellings |
| of operators normally written with punctuation. These keywords are |
| treated as such even in the preprocessor. They function as operators in |
| ‘<samp><span class="samp">#if</span></samp>’, and they cannot be defined as macros or poisoned. In C, you |
| can request that those keywords take their C++ meaning by including |
| <samp><span class="file">iso646.h</span></samp>. That header defines each one as a normal object-like |
| macro expanding to the appropriate punctuator. |
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| <p>These are the named operators and their corresponding punctuators: |
| |
| <p><table summary=""><tr align="left"><td valign="top">Named Operator </td><td valign="top">Punctuator |
| <br></td></tr><tr align="left"><td valign="top"><code>and</code> </td><td valign="top"><code>&&</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>and_eq</code> </td><td valign="top"><code>&=</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>bitand</code> </td><td valign="top"><code>&</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>bitor</code> </td><td valign="top"><code>|</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>compl</code> </td><td valign="top"><code>~</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>not</code> </td><td valign="top"><code>!</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>not_eq</code> </td><td valign="top"><code>!=</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>or</code> </td><td valign="top"><code>||</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>or_eq</code> </td><td valign="top"><code>|=</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>xor</code> </td><td valign="top"><code>^</code> |
| <br></td></tr><tr align="left"><td valign="top"><code>xor_eq</code> </td><td valign="top"><code>^=</code> |
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