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| <h3 class="section">4.1 <code>clearerr</code>—clear file or stream error indicator</h3> |
| |
| <p><a name="index-clearerr-145"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <stdio.h> |
| void clearerr(FILE *<var>fp</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| The <code>stdio</code> functions maintain an error indicator with each file |
| pointer <var>fp</var>, to record whether any read or write errors have |
| occurred on the associated file or stream. Similarly, it maintains an |
| end-of-file indicator to record whether there is no more data in the |
| file. |
| |
| <p>Use <code>clearerr</code> to reset both of these indicators. |
| |
| <p>See <code>ferror</code> and <code>feof</code> to query the two indicators. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| <code>clearerr</code> does not return a result. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| ANSI C requires <code>clearerr</code>. |
| |
| <p>No supporting OS subroutines are required. |
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