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| <h4 class="subsection">12.22.2 Adding Severity Classes</h4> |
| |
| <p><a name="index-severity-class-1195"></a> |
| There is another possibility to introduce severity classes besides using |
| the environment variable <code>SEV_LEVEL</code>. This simplifies the task of |
| introducing new classes in a running program. One could use the |
| <code>setenv</code> or <code>putenv</code> function to set the environment variable, |
| but this is toilsome. |
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| <div class="defun"> |
| — Function: int <b>addseverity</b> (<var>int severity, const char *string</var>)<var><a name="index-addseverity-1196"></a></var><br> |
| <blockquote><p>This function allows the introduction of new severity classes which can be |
| addressed by the <var>severity</var> parameter of the <code>fmtmsg</code> function. |
| The <var>severity</var> parameter of <code>addseverity</code> must match the value |
| for the parameter with the same name of <code>fmtmsg</code>, and <var>string</var> |
| is the string printed in the actual messages instead of the numeric |
| value. |
| |
| <p>If <var>string</var> is <code>NULL</code> the severity class with the numeric value |
| according to <var>severity</var> is removed. |
| |
| <p>It is not possible to overwrite or remove one of the default severity |
| classes. All calls to <code>addseverity</code> with <var>severity</var> set to one |
| of the values for the default classes will fail. |
| |
| <p>The return value is <code>MM_OK</code> if the task was successfully performed. |
| If the return value is <code>MM_NOTOK</code> something went wrong. This could |
| mean that no more memory is available or a class is not available when |
| it has to be removed. |
| |
| <p>This function is not specified in the X/Open Portability Guide although |
| the <code>fmtsmg</code> function is. It is available on System V systems. |
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