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  <a name="foreign-enum-keyword"></a>
  <a name="foreign_002denum_002dkeyword"></a>
  <p>
  Next:&nbsp;<a rel="next" accesskey="n" href="foreign_002denum_002dvalue.html#foreign_002denum_002dvalue">foreign-enum-value</a>,
  Previous:&nbsp;<a rel="previous" accesskey="p" href="foreign_002dbitfield_002dvalue.html#foreign_002dbitfield_002dvalue">foreign-bitfield-value</a>,
  Up:&nbsp;<a rel="up" accesskey="u" href="Foreign-Types.html#Foreign-Types">Foreign Types</a>
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  <h3 class="unnumberedsec">foreign-enum-keyword</h3>
  
  <h4 class="subheading">Syntax</h4>
  
  <div class="defun">
  &mdash; Function: <b>foreign-enum-keyword</b><var> type value &amp;key errorp &rArr; keyword<a name="index-foreign_002denum_002dkeyword-87"></a></var><br>
       </div>
  
  <h4 class="subheading">Arguments and Values</h4>
  
       <dl>
  <dt><var>type</var><dd>An <code>enum</code> type.
  
       <br><dt><var>value</var><dd>An integer.
  
       <br><dt><var>errorp</var><dd>If true (the default), signal an error if <var>value</var> is not defined
  in <var>type</var>.  If false, <code>foreign-enum-keyword</code> returns
  <code>nil</code>.
  
       <br><dt><var>keyword</var><dd>A keyword symbol. 
  </dl>
  
  <h4 class="subheading">Description</h4>
  
  <p>The function <code>foreign-enum-keyword</code> returns the keyword symbol
  that corresponds to <var>value</var> in <var>type</var>.
  
     <p>An error is signaled if <var>type</var> doesn't contain such <var>value</var>
  and <var>errorp</var> is true.
  
  <h4 class="subheading">Examples</h4>
  
  <pre class="lisp">  <span class="paren1">(<span class="lisp-bg"><i><span class="symbol">defcenum</span></i> boolean
      <span class="keyword">:no</span>
      <span class="keyword">:yes</span></span>)</span>
     
    CFFI&gt; <span class="paren1">(<span class="lisp-bg">foreign-enum-keyword 'boolean 1</span>)</span>
    =&gt; :YES
  </pre>
  <h4 class="subheading">See Also</h4>
  
  <p><a href="defcenum.html#defcenum">defcenum</a> <br>
  <a href="foreign_002denum_002dvalue.html#foreign_002denum_002dvalue">foreign-enum-value</a>
  
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