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<title>avram - a virtual machine code interpreter: D.17.3 umf exceptions</title>

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<a name="umf-exceptions"></a>
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<a name="umf-exceptions-1"></a>
<h3 class="subsection">D.17.3 <code>umf</code> exceptions</h3>

<p>If an exceptional condition arises from the use of this library, one
of the following lists of character strings may be returned as the
function result.
</p>
<ul>
<li>
<code>&lt;'memory overflow'&gt;</code> means the library function ran out of
memory, most likely due to a matrix being too large.
</li><li>
<code>&lt;'bad umf specification'&gt;</code> means an input parameter didn&rsquo;t
<a name="index-bad-umf-specification"></a>
conform to the appropriate format described above (<a href="umf-input-parameters.html#umf-input-parameters"><code>umf</code> input parameters</a>)
</li><li>
<code>&lt;'umf error'&gt;</code> covers any unexpected behavior or abnormal
<a name="index-umf-error"></a>
status returned by any function from the C language API.
</li></ul>

<p>For the *<code>_trp</code> functions. A non-square matrix will cause the
second exception above. For the *<code>_col</code> functions, a non-square
matrix will cause the third exception or cause an empty result
to be returned.
</p>
<p>The exceptions noted at the beginning of this section (<a href="External-Libraries.html#External-Libraries">External Libraries</a>) are also possible.
</p>
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