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<title>&lt;GError&gt;: </title>
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<div class="refentry">
<a name="id-1.1.15"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2>&lt;GError&gt;</h2>
<p>&lt;GError&gt;</p>
</div>
<div class="refsect1">
<a name="id-1.1.15.2"></a><h2>Description</h2>
<p>The <code class="code">GError</code> structure contains information about
an error that has occurred.</p>
</div>
<div class="refsect1">
<a name="id-1.1.15.3"></a><h2>Functions</h2>
<div class="refsect2">
<a name="id-1.1.15.3.2"></a><h3>copy</h3>
<div class="informalexample"><pre class="programlisting">(define-values (%return) (error:copy self))
</pre></div>
<p>Makes a copy of <em class="parameter"><code>error</code></em>.</p>
<div class="refsect3">
<a name="id-1.1.15.3.2.4"></a><h4>Parameters</h4>
<div class="informaltable"><table><tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description">
<p>a <span class="type">GError</span></p>
<p>Passed as <code class="code">self</code></p>
</td>
</tr></table></div>
</div>
</div>
<div class="refsect2">
<a name="id-1.1.15.3.3"></a><h3>free</h3>
<div class="informalexample"><pre class="programlisting">(define-values () (error:free self))
</pre></div>
<p>Frees a <span class="type">GError</span> and associated resources.</p>
<div class="refsect3">
<a name="id-1.1.15.3.3.4"></a><h4>Parameters</h4>
<div class="informaltable"><table><tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description">
<p>a <span class="type">GError</span></p>
<p>Passed as <code class="code">self</code></p>
</td>
</tr></table></div>
</div>
</div>
<div class="refsect2">
<a name="id-1.1.15.3.4"></a><h3>matches?</h3>
<div class="informalexample"><pre class="programlisting">(define-values (%return) (error:matches? self domain code))
</pre></div>
<p>Returns <code class="constant">TRUE</code> if <em class="parameter"><code>error</code></em> matches <em class="parameter"><code>domain</code></em> and <em class="parameter"><code>code</code></em>, <code class="constant">FALSE</code>
otherwise. In particular, when <em class="parameter"><code>error</code></em> is <code class="constant">NULL</code>, <code class="constant">FALSE</code> will
be returned.
</p>
<p>If <em class="parameter"><code>domain</code></em> contains a <code class="code">FAILED</code> (or otherwise generic) error code,
you should generally not check for it explicitly, but should
instead treat any not-explicitly-recognized error code as being
equivalent to the <code class="code">FAILED</code> code. This way, if the domain is
extended in the future to provide a more specific error code for
a certain case, your code will still work.</p>
<div class="refsect3">
<a name="id-1.1.15.3.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table>
<tr>
<td class="parameter_name"><p>error</p></td>
<td class="parameter_description">
<p>a <span class="type">GError</span></p>
<p>Passed as <code class="code">self</code></p>
</td>
</tr>
<tr>
<td class="parameter_name"><p>domain</p></td>
<td class="parameter_description">
<p>an error domain</p>
<p>Passed as <code class="code">domain</code></p>
</td>
</tr>
<tr>
<td class="parameter_name"><p>code</p></td>
<td class="parameter_description">
<p>an error code</p>
<p>Passed as <code class="code">code</code></p>
</td>
</tr>
</table></div>
</div>
</div>
<div class="refsect2">
<a name="id-1.1.15.3.5"></a><h3>error:new-literal</h3>
<div class="informalexample"><pre class="programlisting">(define-values (%return) (error:new-literal domain code message))
</pre></div>
<p>Undocumented</p>
<div class="refsect3">
<a name="id-1.1.15.3.5.4"></a><h4>Parameters</h4>
<div class="informaltable"><table>
<tr>
<td class="parameter_name"><p>domain</p></td>
<td class="parameter_description">
<p></p>
<p>Passed as <code class="code">domain</code></p>
</td>
</tr>
<tr>
<td class="parameter_name"><p>code</p></td>
<td class="parameter_description">
<p></p>
<p>Passed as <code class="code">code</code></p>
</td>
</tr>
<tr>
<td class="parameter_name"><p>message</p></td>
<td class="parameter_description">
<p></p>
<p>Passed as <code class="code">message</code></p>
</td>
</tr>
</table></div>
</div>
</div>
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