| 286efd | 2012-03-24 | Henrik Grubbström (Grubba) | | <html>
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<div style="text-align:right;">Extracted from as of .</div>
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<h1>Directive #error</h1>
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<dl class='group--doc'>
<dt class='head--type'><span class='homogen--type'>Directive</span>
<span class='homogen--name'><b>#error</b></span>
</dt>
<dd><p><code class='directive'>#error</code></p></dd>
<dt class='head--doc'>Description</dt>
<dd class='body--doc'><p>Throw an error during preprocessing.</p>
<p> This directive causes a cpp error. It can be used to notify
the user that certain functions are missing and similar things.</p>
</dd>
<dt class='head--doc'>Note</dt>
<dd class='body--doc'><p>Note that this directive will cause <code class='reference unresolved'>cpp()</code> to throw
an error at the end of preprocessing, which will cause
any compilation to fail.</p>
</dd>
<dt class='head--doc'>Example</dt>
<dd class='example'><pre><pre><code>#if !constant(Yp)
#error Support for NIS not available.
#endif</code></pre>
</pre></dd>
<dt class='head--doc'>See also</dt>
<dd class='body--doc'><p><a class='ms reference' href='../cpp_3A_3A.html'>#warning</a></p>
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