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Next: <a href="Handling-Warnings.html#Handling-Warnings" accesskey="n" rel="next">Handling Warnings</a>, Up: <a href="Errors-and-Warnings.html#Errors-and-Warnings" accesskey="u" rel="up">Errors and Warnings</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<h3 class="section">12.1 Handling Errors</h3>
<p>An error is something that occurs when a program is in a state where
it doesn’t make sense to continue. An example is when a function is
called with too few input arguments. In this situation the function
should abort with an error message informing the user of the lacking
input arguments.
</p>
<p>Since an error can occur during the evaluation of a program, it is
very convenient to be able to detect that an error occurred, so that
the error can be fixed. This is possible with the <code>try</code> statement
described in <a href="The-try-Statement.html#The-try-Statement">The try Statement</a>.
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