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| <h3 class="section">3.12 <code>toascii</code>—force integers to ASCII range</h3> |
| |
| <p><a name="index-toascii-122"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <ctype.h> |
| int toascii(int <var>c</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| <code>toascii</code> is a macro which coerces integers to the ASCII range (0–127) by zeroing any higher-order bits. |
| |
| <p>You can use a compiled subroutine instead of the macro definition by |
| undefining this macro using `<code>#undef toascii</code>'. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| <code>toascii</code> returns integers between 0 and 127. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| <code>toascii</code> is not ANSI C. |
| |
| <p>No supporting OS subroutines are required. |
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