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| <h3 class="section">7.1 <code>psignal</code>—print a signal message on standard error</h3> |
| |
| <p><a name="index-psignal-423"></a><strong>Synopsis</strong> |
| <pre class="example"> #include <stdio.h> |
| void psignal(int <var>signal</var>, const char *<var>prefix</var>); |
| |
| </pre> |
| <p><strong>Description</strong><br> |
| Use <code>psignal</code> to print (on standard error) a signal message |
| corresponding to the value of the signal number <var>signal</var>. |
| Unless you use <code>NULL</code> as the value of the argument <var>prefix</var>, the |
| signal message will begin with the string at <var>prefix</var>, followed by a |
| colon and a space (<code>: </code>). The remainder of the signal message is one |
| of the strings described for <code>strsignal</code>. |
| |
| <p><br> |
| <strong>Returns</strong><br> |
| <code>psignal</code> returns no result. |
| |
| <p><br> |
| <strong>Portability</strong><br> |
| POSIX.1-2008 requires <code>psignal</code>, but the strings issued vary from one |
| implementation to another. |
| |
| <p>Supporting OS subroutines required: <code>close</code>, <code>fstat</code>, <code>isatty</code>, |
| <code>lseek</code>, <code>read</code>, <code>sbrk</code>, <code>write</code>. |
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