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Next: <a rel="next" accesskey="n" href="Handling-Warnings.html#Handling-Warnings">Handling Warnings</a>,
Up: <a rel="up" accesskey="u" href="Errors-and-Warnings.html#Errors-and-Warnings">Errors and Warnings</a>
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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>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-_003ccode_003etry_003c_002fcode_003e-Statement.html#The-_003ccode_003etry_003c_002fcode_003e-Statement">The <code>try</code> Statement</a>.
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<li><a accesskey="1" href="Raising-Errors.html#Raising-Errors">Raising Errors</a>
<li><a accesskey="2" href="Catching-Errors.html#Catching-Errors">Catching Errors</a>
<li><a accesskey="3" href="Recovering-From-Errors.html#Recovering-From-Errors">Recovering From Errors</a>
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